Mfj manual screwdriver antenna

MFJ 948 300 watts, peak reading HF antenna tuner for amateur Notes : M6 x 1. This tuner is The MFJ-82 is a magnetic sensor kit for High Sierra antennas to use the MFJ-1922 Programmable Screwdriver Antenna Controller. $576 MFJ-1786 Loop Antenna – My Stealth Antenna Installations. A little over a year ago, a new mobile antenna became available to the ham radio market. MFJ-998RT Legal Limit IntelliTunerTM Automatic Remote Antenna Tuner Information in this manual is designed for user purposes only and is not intended to flat blade screwdriver, insert into the CONTRAST control VR5 to the right of the  Whip makes HF mobiling fun and easy! Theyre small, lightweight, efficient, and super easy-to-use. The antenna always moves to its desired position from the bottom, insuring that the motor is always loaded the same. antenna so that an electrical 1/4-wavelength (or odd multiple of 1/4-wavelength) exists on all bands. The extra-long 10 ft. I applied dielectric silicon grease to the weather gasket to ensure reliability and also to the internal element joint bracket to prevent possible oxidation in the joint. Many antennas operate on only 3 or 4 volts, a Dropping Resistor is used inline with the motor wires to bring the voltage down. With a push of a button, you can quickly return to any saved position. It comes with a short coax jumper to connect to the transmitter. Pretty darned close, but a touch of the calibration trimmer with a teensy jeweler’s-style screwdriver put the MFJ-886 smack dab on 10. 95. 18511 County Road 304, St. 1 THE BASICS Introduction The MFJ-939 Plug&Play Intellituner TM a simple to install and convenient antenna tuner for use with Icom, Jun 09, 2019 · Very nice video. Important: Failure to adjust and operate your tuner, MFJ includes a vernier drive on the butterfly capacitor. The antenna has a swivel base to allow easy mounting and access to the top for tuning the 80 meter band. Fast & Free shipping on many items! The MFJ-1668 HF Mobile 80-6m Screw-driver Antenna, MFJ's Manual Screwdriver Antenna series are continuous coverage, multiband, vertical HF antennas built for mobile (with 1. Looking for an old, out-of-print MFJ manual? You've come to the right place. 95 out of stock : mfj2910 : mfj mfj2910: 160/80m high download manual ameritron catalog dealer listing screwdriver antenna controller: switches: transceivers: tuners, antenna tuners: als-600 600 watts solid state, hf MFJ-226 Graphical Antenna Impedance Analyzer 6 Version 1A 1R02 POWERING THE MFJ-226 The MFJ-226 requires two (2) good quality AA batteries. If you're looking for a low cost solution for a portable hamstick antenna pole for your ham radio, then check out this video. 5:1 frequency range. Refer to the tower diagram on page 4 of this manual. Oct 29, 2010 · the mfj screwdriver antenna is your solutions to get on the air. Making matters worse, the MFJ SDC-103 (a sister product to the aforementioned) share a manual. ). Replacement for An MFJ Cub and power supply isn't all you need to make a complete compact 20m QRP CW station. Covers 6-20 Meters with 4 1/2 foot whip. MFJ-8100 World Band Receiver 1 MFJ-8100 World Band The Hi-Q™ antenna series is designed for mobile installation. 8 - 3 £179. This price does not include the base, the mount or the coax (that OPEK can provides as well). 89 $ 167. Button out selects Antenna 1; button in   26 Mar 2011 A proper stand alone screwdriver antenna needs no transmit wattage wasteing Or, for that vintage look, you can get a "manual" screwdriver, aka the I vote hamsticks (MFJ brand) I have one for 10, 15, 20, and 40 meters. Maximum transmitter to antenna power transfer occurs when the transmission line and antenna impedances are matched to the standard 50 Ω radio impedance. The TurboTuner-2 provides automatic tuning and control of screwdriver antennas. The smallest diameter used is 1 1/8 inches. View as Grid List MFJ MFJ-1664 Manual Adjustment 3. No modification to the radio or antenna is necessary. Can also be used in reverse mode, in order to match impedances from 50 ohms down. This apparatus is then attached to a 5 inch tri-magnetic mount and that is attached to a steel framing member on the lower balcony deck. Add to Wishlist | Add to Compare Diamond AZ505 The MFJ-828 includes MFJ’s Amplifier Bypass ControlTM. I have the antenna in an inverted V configuration, the center being suspended from a oak tree limb at 37 feet. Rebuild MFJ 1622 Apartment Antenna. The metal apron running around the balcony on three sides acts as the counterpoise. . TAK-tenna 40 Standard Style Multiband Antenna download manual ameritron catalog dealer listing screwdriver antenna controller: switches: transceivers: tuners, antenna tuners: al-80b hf amp, 1kw, (1) 3-500z Mobile Antenna (Slim Gainer) Special Order Only Learn More. tech offer 4 MFJ Enterprises manuals and user’s guides for free. Dual band, designed to assist S earch & R escue Volunteers and Professionals 1. It is commonly known as: "The Screwdriver Antenna" The antenna uses a wide-band unbalanced to unbalanced matching transformer to match the low impedance of the antenna to the 50 ohm output of your transceiver. Pacific St. 00: MFJ-16010 Compact long wire antenna tuner. The IC7000 is a great radio after you master the menus. Continuously adjustable loading coil. 500mhz. UserManuals. Over the years I have spent a great deal of time getting things tuned as I want them, putting a large, (40 radials), radial field put in place, and getting the antenna exactly the way I want it, performing exactly the way I want it to perform, and in general tweaking it MFJ HF Portable/Mobile Manual Screwdriver Antennas MFJ -1664. Coaxial feedlines from your antenna(s) connect to the coax connectors COAX 1 and/or COAX 2. Be sure to carefully read the Diamond X300A instruction manual (PDF) at least once. 5, 50, 75, & 200 ohms •Easy to make your own load with stock resistors and PL 259s •Use the smallest METAL FILM (1%) resistors you can find •Radio Shack CARBON FILM resistors worked for me •Philips screwdriver (#1 or #2) •Very small screwdriver for alignment tool Visit Diamond Antenna on Facebook & Instagram! Office hours, Monday through Friday 9:00 a. New MFJ manual screwdriver antennas MFJ’s new manual screwdriver antennas utilize 1. It has a SWR bridge built in and checks the swr as it tunes to resonance. Use MFJ Bug Catcher, MFJ-2620/2640T, MFJ manual screwdriver antenna, Hustler or any loading coil with 3/8x24 threads. Rebuilding the L-network QRP antenna tuner. 5:1 at the current operating frequency. The matching coil is then tapped to antenna ground with the tap wire provided. . Now that’s accuracy! The Bottom Line The MFJ-886 is hard to beat for compact convenience, accuracy, ease of operation, and In this case, the MFJ-259B is connected to an unmatched, screwdriver antenna mounted on the left quarter panel, and measured through a 12 inch long piece of coax. 195 B1 and 6,496. The MFJ-1664 Portable Screwdriver Antenna covers 80-6 Meters with 10 foot whip. Check, money order or PayPal+PP fee. The  Review Summary For : MFJ 1668 mobile/portable screwdriver antenna. The CTR6-160 Auto Controller will work with any screwdriver antenna with or without counter switch/magnet switch. Results of a 12-month road test. It only requires connection to the 2 motor wires. Take any other information with a grain of salt. We build an ideal base station antenna for the amateur living with antenna restrictions. Max power: 40/20M 150W SSB 15/10/6M 220W SSB. 15,850 likes · 95 talking about this · 224 were here. 14-gauge clip lead MFJ-1979 EXTRA LONG Telescopic 17FT 20M Antenna - $76. 8-30 MHz 300 Watts AutoTuner: MFJ-993B 1. Antenna Installation. 5 - 54 MHz. Alpha Antenna offers four optional 35 foot NVIS Elements, which enhance the performance of Near Vertical Incidence (NVIS) and DX for either the HD-FMJ and ProMaster systems when either is[…] hs 1800 screwdriver antenna installing radials under a screwdriver antenna wire sources for screwdriver antenna coils screwdriver hf antenna dk-3 screwdriver antenna manual ham radio screwdriver antenna old screwdriver antenna first screwdriver antenna mobile screwdriver antenna toroid antenna match for screwdriver antenna mfj screwdriver antenna International sales ship through the global shipping center. 2 kW, Pittman Screwdriver antenna makers category is a curation of 8 web resources on , The KO6YD Screwdriver Antenna Memory, Tarheel Antennas, K4POZ Screwdriver Antennas. TuneMatic is a self-contained antenna controller which automatically adjusts the resonant frequency of a screwdriver/motorized antenna. Building the Magnetic Loop Antenna Since every ham has his or her own construction methods, I'll show you 'mine' if you promise not to laugh (hihi). A 4-digit turns counter with bright see-in-the-sun LEDs gives you precise antenna position. Fixed-length antenna impedance varies with frequency due to physical dimension dependent capacitance and inductance. A 3 meter (50 cm collapsed) telescopic whip is included for fixed mobile operation only. The inbuilt SWR meter follows that on my HF radio quite closely. Peter has build his one already and we tested it with good results, now we are going to make this one, and to show how its done we made some pictures. 8-54 MHz 300 Watts: MFJ-991B 1. MFJ-994BRT HF Automatic Remote Antenna Tuner Instruction Manual 2011 MFJ Enterprises, Inc. Up/Down buttons let you manually move the antenna to any desired position. 2 MFJcub QRP CW Transceiver Operation Manual Model MFJ-93xx xx Meter QRP CW Transceiver MFJ Enterprises Starkville, MS USA 6. The screwdriver antenna has been great although it takes much more time and concentration to retune when switching bands. 999982 MHz. 44. stainless steel telescopic whip is also included for mobile I am looking for opinions on a portable antenna for field comms. memory separately for Antenna 1 and Antenna 2 (settings for single-wire antenna are stored as Antenna 1). MFJ-82 Screwdriver Antenna Remote Sensor Add-on Kit Installation Manual 1 MFJ Remote Sensor Add-on Kit for High Sierra Antennas Installation Manual INTRODUCTION Installation of this simple kit on your screwdriver antenna will allow you to enjoy the convenience of quickly and accurately returning to antenna settings, when used with the MFJ-1924 Great deals on MFJ Radio Antenna Tuners. Rated to 200W. Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from MFJ Enterprises, Inc. Don’t let H. The MFJ 1926 is a Programmable Screwdriver Antenna Controller for ICOM Radios. The result is a "hybrid" dipole or "ungrounded" vertical amateur radio antenna, depending on your point of view! The feed point is just outside my basement shack window, about one meter (3 feet) above ground. Share the user manual or guide on Facebook, Twitter or Google+. 948 Kbytes: CG Antenna CG-5000 Manual. All the parts appeared to be present and there were no major blemishes, nicks or scratches on the parts. Apr 22, 2020 · The antenna has worked very well for me, and I have worked much DX with it. cillator to the MFJ-886, I saw that the frequency counter read 9. Texas BugCatcher . 5 meter (60 cm collapsed) mobile telescoping stainless steel whip. MFJ-1924 Screwdriver Controller with Memory Instruction Manual Introduction The MFJ-1924 Screwdriver Controller provides manual operation for tuning screwdriver antennas. Replacement for broken or bent Hustler bottom mast section. Extend ham sticks for efficient fixed station antennas. MFJ-2010 . MFJ-1775 Rotatable Mini-Dipole Instruction Manual 4 TOOLS AND TIME REQUIRED FOR ASSEMBLY The estimated assembly time is two hours. It took almost two years for Jim to resolve, but he finally figured out how to stretch our HS1800 antenna to 80 meters. 5:1 from 50 mhz all the way to 180 mhz. MFJ-935B Loop Tuner: Review & modification. MFJ with manual screwdriver antennas designed for BOTH mobile and portable uses. 5 - 4. PIC Solution PIC Processor $5 Manual screwdriver: MFJ-1662: 6-40 m - dB: Manual screwdriver: MFJ-1664: 6-80 m Patch antenna, 150° beam width: MFJ-1804: 2. W4RT BOSS 2 Automatic Screwdriver Antenna Controller Main Trading Company . Battery box is unused. It is a center loaded HF mobile antenna. is a full service computer and amateur radio store. There are two parts of the video, one showing you how to make it and the other Antenna analyzer. Horizontal length: 13 ft approx. Home of the . 245 Kbytes: CG Antenna CG-5000 Schematic. I am only selling . 80 to 6 Meters Mobile Screwdriver Antenna, MFJ HF Antenna, MFJ Mobile Antenna, Portable Mobile HF Antenna. It is light enough for one person to assemble and for The MFJ-929 IntelliTunerTM lets you rapidly tune any antenna automatically: unbalanced or single-wire. This calibration procedure is the correct procedure for later MFJ-259B's. I have an Icom 7000 and (like you found out) use the RTTY mode to tune a screwdriver antenna when mobile. The ATAS-120A seems to get a bad rap and I think it is completely undeserved. MFJ-1775 40-2 meter Mini-Rotatable Dipole: Review. the benefit's are big and simple. MFJ-9440: Use an insulated tuning wand to adjust L101. MFJ made it possible for the popular Yaesu ATAS series antenna to be used with other radios such as the IC-706, TS-50 and others. Jun 10, 2011 · 10/11: Anytone AT-5555, President Lincoln - Astatic Audio HF: Kenwood TS2000 ,Kenwood G707, Heil Goldline, The MFJ 969 Roller Inductor Antenna tuner shown at the top of the picture above is a modestly priced tuner that promises a lot of features for a minimal cost: Wide-match tuning support 300watts of RF power handling Cross-needle FWD/Reverse SWR meter with peak / averaging 2 port antenna switch MFJ-939 Plug&Play IntelliTuner Automatic Antenna Tuner Instruction Manual 2006-2015 MFJ Enterprises, Inc. The MFJ-1668 manually tuned screwdriver antenna was designed for continuous operation from. You can read your antenna’s SWR and Complex Impedance 530 KHz to 230 MHz continuously with no gaps. The MFJ-9340K 'Cub' 40-meter QRP CW kit as shown on the MFJ site When the kit arrived, it was in a medium-small white MFJ box, carefully packed by 'Carrie' (Thank you Carrie!). MFJ - 1925I2 is specially designed for the icom ic ships via USPS first class mail. You new Use a #1 phillips screwdriver to remove the tap and  Use a small flat blade screwdriver and turn clockwise to increase contrast. the Yaesu ATAS Screwdriver Antenna. But it does not make that wire resonate! All it does is make your antenna system present the proper impedance to your transmitter, so that you don't burn out that transmitter. The MFJ-1926 is perfect for your Icom radio equipped with a CI-V interface. Called the Outbacker in honor of its Australian origins, this rugged yet attractive antenna soon began to show up on the bands and to receive soma nice reviews in amateur radio publications. By moving this tap up and down it is possible to achieve a perfect match of 1:1. Super Antenna TM4 SuperPod Large Portable Tripod is a collapsible portable antenna tripod, that comes with with a black nylon carry case, it has a 3/8"-16 male stud fitting and UM3 SuperMount for a 3/8"-24 antenna and SO-239 coaxial cable connector; the TM4 SuperPod is made by Super Antenna Systems Corp. MFJ-962D Instruction Manual 3 Introduction The MFJ-962D is a "T" network roller inductor tuner with built-in antenna switching, RF power and SWR metering and a 1:1 balun. You may use alkaline non-rechargeable or NiMH rechargeable cells. The base is also equipped with a 3/8” stud for mounting the MFJ HF Mobile Ham-tenna™ whips. Mobile Manual Screwdriver Antennas. MFJ-901B Versa Tuner Antenna Tuning Unit. MFJ-1901 Assembly Manual Portable Antenna Base 7 8. 95 out of stock : mfj1928 : mfj mfj1928: screw driver antenna controller $243. Quality Built by GLA Systems “The SERIOUS HF Mobile Antenna” 4” and 6” Diameter High “Q” Coils for 3 to 30 Mhz Operation Stainless Steel Mast and Hardware - Aircraft Aluminum Capacity Hats All Parts Have Standard 3/8-24 Threads - Tunes All HF Bands BROADBAND VHF/UHF Dual Band Antenna. Our 40 band model is operated to 10 meters using an antenna tuner. Will sell for $100. MFJ MODEL MFJ-1927 Automatic Screwdriver Antenna Controller for Elecraft, Icom, Kenwood and Yaesu Radios INSTRUCTION MANUAL PLEASE READ THIS MANUAL BEFORE OPERATING THIS MACHINE! _____ MFJ ENTERPRISES INC. 859 Kbytes: CG Antenna CG-3000 Service manual. 73, Dick, WC1M -- I have 2 antenna analyzers: the MFJ-259 and the Autek RF-1. B. £172. Heavy duty antenna cobers 10-20 meters, including WARC A High Sierra screwdriver 1500 antenna. San Marcos, CA 92078. the op amps (upper far right) provide gain and adjustment for the signals coming out of the measurement cluster. OPE750 is 430mm shorter than normal MFJ-1700C Six Position Antenna/Radio Switch W/ Surge Protection 2kW Rated Ham CB Tarheel Antennas Little Tarheel II Mobile Screwdriver Antenna, 3. I feed the antenna with a short length (less than 16 feet) of RG-8X through a RemoteBalun® (current balun) made by Radio Works. Since MFJ-259B firmware has several versions under the same model number, you may find some final performance or function verification steps invalid. Be prepared and able to communicate in case of emergency with the largest selection at eBay. Covers 10 to 80m bands handles 600W. After the antenna is assembled it must be checked and adjusted for resonant frequency and SWR. Peter has made the following parts. 0 MHz), many QSO’s, however it won’t load on 40 and upany ideas? Using an MFJ 259 antenna analyzerit’s shows good resonances on 40 and 30 m, however my solid state rig thinks differently. 7. Continuously adjustable loading coil is 15 inches long by 2 inches in diameter and weighs 1. 416-667-1000. A. Vertical oriented loops function perfectly well close to ground level. co. Rebuilding the L network QRP antenna tuner. This is an End-Fed Half-Wave (EFHW*) antenna for 80/40/30/20/17/15/12 and 10m bands. MFJ 971 Portable/QRP manual antenna tuning unit, covers HF 1. MFJ-1795W Vertical Antenna Instruction Manual INTRODUCTION The MFJ-1795W HF antenna was designed to provide portable or permanent WARC Band operation from restricted locations. Reflector Antennas-The Satellite Dish. Antenna Tuners. A 4-digit counter is used to display the current antenna position. Auto Screw Driver Ant Controller - Kenwood . I used a 67/33 split. But you can?t use the antenna unless you have the MFJ-1925 antenna controller. On some bands it is a bit out but if it reads less than 1. 4. 5 - 54 MHz Screwdriver Mobile Antenna - 13 Feet Tall - 200 Watts PEP. CAUTION: Read MFJ-993B IntelliTuner Automatic Antenna Tuner You can manually tune where you can't transmit (for listening out of ham bands). short base; Has 6 mm threads use with 97248408 base Type : Manual Antenna Quantity Sold : Sold individually Warranty : 24-months or unlimited mile AC Delco limited warranty Product Fit : Direct Fit Anticipated Ship Out Time : Same day - 1 business day Color/Finish : Black May 24, 2018 · The antenna is fairly easy to assemble using a few basic tools. Antenna assembly requires the following hand tools: • #2 Phillips screwdriver • 5/16" nut driver for #6 nuts and hose clamps. Generally, a specific wire antenna length can be tuned over a 1. Sep 10, 2018 · I am using the Little Tarheel screwdriver antenna with a collapsible Buddipole collapsible antenna acting as the whip. I ordered the MFJ1664 which also includes a 4. 8 hours ago · Built-in Cross-Needle SWR/Wattmeter measures SWR, forward and reflected power in two ranges: 300 or 30 Watts. The main category is Antenna Tuners that is about Homebrewing antenna tuners. This provides memory for up to eight different antennas. Portable Manual Screwdriver Antennas covers 40-2 Meters with 10 foot whip. C. MFJ-1792/1793 Vertical Antenna Instructions 1 MFJ-1792/1793 INSTRUCTION MANUAL INTRODUCTION On frequencies below 7 MHz, where vertical polarization and low wave angles are desired, the antenna must be very high above ground or vertically polarized. 1. 95 out of stock : mfj1922b : mfj mfj1922b: screwdriver antenna digital control $129. 95 MFJ-1664 Dipole Antennas Choose a Dipole Antenna from MFJ, and get This antenna is a highly modified version of the DK3 designed by W6AAQ. The simplest control is simply a double pole double throw switch. 37m whip) and stationary 3m whip. This link is listed in our web site directory since Tuesday Jun 20 2006, and till today " N2VZ Automatic Screwdriver Antenna Controller " has been followed for a total of 4865 times. INSTRUCTION MANUAL. Best prices, in stock Since I do not have an opportunity to mount a full size antenna for 80 or 40 meters nor a vertical on the roof of the building for higher bands, I am using a magnet mount on the window apron of my balcony. The 1,4 meter long stainless-steel telescopic whip is included for mobile operation. The main category is Screwdriver antenna makers that is about Screwdriver antenna makers. 12 inches long by 2 inches in diameter. 00: MFJ-1704: MFJ-1704 - Four Position Antenna Switch Little Tarheel II Screwdriver antenna: R 10 MFJ-259B Gold Standard for Hams Does Not Sweep Build Your Own Antenna Analyser for under $50 Beric Dunn K6BEZ $20. This item suits car type installation. 3 Motor Operating Voltage This control unit is designed to operate with a screwdriver antenna that operates on 12 volts. com. (7 - 30MHz) Manual controls also offer the user the ability to adjust the antenna tuning manually, and store new data points for new and favorite frequencies. On low frequencies , the height of a vertical half wave dipole antenna is usually impraticle to We sell High Sierra antennas at Radioworld. 2. 8-30 MHz 300 Watts: MFJ-962D 1. 16 Antenna, Spider Beam, new. 8-30 MHz 200 Watts AutoTuner: MFJ-941E 1. This is accomplished by using the "Tune" function of the radio to supply RF power while the TurboTuner-2 moves the screwdriver antenna up or down and constantly *) Happijac 182463 Acme Manual Screw Camper Jack *) Power Stop K2317 Front Rear Ceramic Brake Pad and Cross Drilled Slotted Combo Rotor One Click Brake Kit *) Simpson 4297381 Diamondback 7 3 8 SA10 Helmet MFJ-1754 Dual Band Antenna Instructions 2 During assembly of this antenna refer to the figures in this manual and the picture on page 1. 5:1 or less SWR: 144-148/440-450MHz 2:1 or less SWR: 140-160/435-465MHz The Hi-Q-Antenna is a NEW and revolutionary design, not a cheap copy of a Don Johnson screwdriver type. MFJ-1664 Manual Screwdriver: Review. HOA Stealth Backyard Vertical 10m-80m Antenna - MFJ-1979, RadioWavz P-80 - Duration: 5:27. Introduction. Element Length: 770mm Frequency: 7-50MHz SD330 can be used from 3-30MHz. The MFJ has one feature the Autek doesn't have - an external input to the frequency counter (which also has more digits of resolution). The 6. 5 - 30MHz), aprrox. 24 inches long by 2 inches in diameter. Rebuild MFJ-1622 Apartment Antenna for Ham Radio HF. MFJ-1625 Instruction Manual Window/Balcony Mount Antenna 1 MFJ-1625 Window/Balcony Mount Antenna Introduction The MFJ-1625 Window/Balcony Mount Antenna is a 200 Watt antenna tuner that was designed to provide portable or permanent HF communications on 80 through 10 meters and VHF on 6 meters. Resources listed under Screwdriver Antenna category belongs to Mobile Antennas main collection, and get reviewed and rated by amateur radio operators. $225. Review Summary For : MFJ 1668 mobile/portable screwdriver antenna; Reviews: 4 MSRP: 159. The MFJ-259B gives you a complete picture of your antenna's performance anywhere between 1. 8~170MHz, even outside the HAM bands! Antenna, Cushcraft A3WS WARC Beam. The MFJ-924 is designed to match a wide Calibrating the MFJ-259B Antenna Analyzer. The MFJ-941E gives you a 300 Watt antenna tuner that covers everything from 1. Mike The ham world has found the perfect HF/ VHF antenna for mobile/portable operation . 00. New Listing MFJ-259C HF/VHF/220 MHZ, . MFJ Antenna Analyzers Mini-Manual From Nifty Ham Accessories Micro-Coax -- Cables, Connectors, Delay Lines Microsystems Design Services (MDS) - RC1 Digital Rotor Control Box I am Jeffrey Cavender and I founded Breedlove Mounts. Our antennas work great in Mobile, Home and Portable settings. HRO Discount Price: $169. 7” diameter coils wound on PVC tubes (tinned copper wire wound at 12 turns per inch), and include both 4-1/2 foot and 10-foot collapsible whips. zip: 1. It works exceptionally well with the FT 817, Elecraft K2 and KX1, IC 703 and other QRP rigs. 000000 MHz. The Controller started having an issue when it was very cold outside (very cold here in VA is < 30 F. I make and sell a wide range of brackets and antenna mounts for your mobile ham radio operators. 8-30MHz 5. WILL CALL for Local Pick Up: Beginning Monday, June 22, 2020, we will once again provide "WILL CALL" services at 435 S. On 20 meters, the 80-meter section acts as a 3/4-wave radiator. 8 pounds. 00 including USPS pri. zip: 842 Kbytes: Channel Guard xl-1000 Adjustable LPF Schematic. If using OPE750 instead of normal element, it can be used from 7-50MHz. The SDC-102 sends a 5 volt signal to the reed switch mounted in our antenna, using the “brown and white wires on connector plug”. 00; Description: A 36 inch adjustment mechanism/coil with 2 telescoping whips, one 10 feet long, the other about 4 feet for mobile use while in motion. 00 In stock! Antenna Construction: 1/4 wave center loading Power supply voltage & current : DC 12V 100mA Up-down time:aprrox. download manual ameritron catalog dealer listing screwdriver antenna controller: switches: transceivers: tuners, antenna tuners: al-80b hf amp, 1kw, (1) 3-500z Mobile Antenna (Slim Gainer) Special Order Only Learn More. If you have problem to find a manual, schematic or other file for a specific model, e. 8 hours ago · Description Our SOTA tuner is an Endfed Half Wave Antenna Tuner covering 40-15M or 80M bands. MFJ-1979 Extra Long Telescopic 17FT 20M Antenna MFJ?s premium stainless steel telescopic whips are the perfect choice for building collapsible multi-band dipoles, mobiles, portable and base antennas. Have a look at the manual MFJ Enterprises 8100w World Band Receiver Manual online for free. (The MFJ-259b shown) Very helpful and time saving when working with antennas and their design and tuning. Locate all of the hardware needed to mount the antenna to the tower such as u-bolts. 6 Thru 40 Meters Mobile Screwdriver Antenna. •MFJ 259: 50 & 100 ohms •MFJ 259B: 12. MFJ-9420: Use a small screwdriver to adjust C103. 8-30 MHz 300 Watts: MFJ-945E 1. 64-66 Some tips on stealth and diplomacy that may help you enjoy ham radio from your condo. 00 QRP manual Antenna Tuner 1 - 30 Mhz (KIT. It is used between the transmission line of an HF antenna system and a transceiver or transmitter. this tuner because I no longer use it. Receiving Antennas--free webinar. O. The MFJ-929 is a comprehensive automatic antenna tuning center with SWR/wattmeter, antenna switch The base of the antenna is a male PL-259 connector and requires a SO-239 mount. g. This unit has been stored for some time before I purchased it in Jan. i The Basics Introduction The MFJ-994B IntelliTuner TM lets you rapidly tune unbalanced, single-wire, or balanced (with external balun) antennas automatically. Joseph, MO 64505 MFJ-1668 (4. I used a MFJ 4:1 current balun, #14 insulated, stranded THNN wire, and ceramic insulators on the ends. working condition but has some signs of wear see pictures, it comes with a copy users manual (reprint). The MFJ-1925 also comes with Icom-706 control. The control cable must be connected •MFJ 259: “Resistance” reading should equal R regardless of X •The MFJ 259B “Impedance” meter displays Z as one number R R L C X Physical Circuit Equivalent Impedance Circuit Impedance At any specified frequency (F) X = j2pFL + 1/(j2pFC) = j2pFL – j[1/(2pFC)] test - mfj-259b antenna analyser Works perfect, looks like new, includes wall wart power supply, field strength antenna adapter, original manual and MFJ box. 5/21/05 . Press and slide the lid down to expose the tray. 3 pounds. Consult your antenna manual or manufacturer for the operating voltage. 300 INDUSTRIAL PARK Starkville, MS 39759 USA 662-323-5869 Have a look at the manual MFJ Enterprises 9420 Hf Tranceiver Manual online for free. The Hi-Q Antennas™ design is not a cheap copy of the original Don Johnson screwdriver antenna. Black anti-static jacket. Automatic tuning antenna (2. This fact is shown graphically in the image at right. MFJ-923 VHF/UHF Dual Band Antenna Tuner covers the complete 144 MHz and 440 MHz frequency ranges. It was working great when I took it down. 5 kW 4:1 current balun /insulator MFJ-919 $5995 Mobile Antennas MFJ-1456, $14995 40/20/15/10/6/2M MFJ-1438, $9995 10/6/2M/440 MHz 4 Foot Ground Rod Copper bonded steel MFJ-1934 $4 Ameritron Screwdriver Antenna 1. 3:1 or vice versa. $189. I used this tuner for working portable, the tuner is in good . dipole antenna length varies from 15 to 150 ft over this range. It has a highly efficient loading inductor. 4 GHz: 12 dBi: Base: Bi-quad with GigaParts, Inc. An extra long 3 meter telescoping whip for fixed opration lets you really get out as a base station. The tilting base of the "Hy-Tower" allows the antenna to be completely assembled on the ground before it is raised into position. MFJ-1662 Manual Screwdeiver Mobile Antenna. You can even hide the base by covering it with dirt. Congratulations on your choice of the MFJ-9420 20-Meter transceiver. MFJ-4416 Super Battery Booster: Product Review. Both units are reasonably well documented, but the Autek manual gives muc= h more detailed technical information. I am thinking about adding random long wire (but not too longmaybe 33ft) and an inexpensive MFJ manual tuner to my 'go' kit. This is a video just showing what it does and how it works. I do have a dipole that work well on 20m, but have recently added a screwdriver antenna, the Superantenna's MP-1. MFJ Enterprises Original MFJ-941E HF Antenna Tuner with Mini Cross Meter, 300 Watts. Eleven values of switchable capacitance 30 - 2000pF. Optional Accessories Mobile Manual Screwdriver Antennas The MFJ-1668 (80-6 Meters) is termed a Mobile Antenna because it covers its respective frequency ranges with the short 4-1/2 foot (23 inches collapsed) mobile telescoping stainless steel whip. Scorpion Antennas™ are designed for amateurs that demand outstanding performance. 8-30 MHz 300 Watts AutoTuner: MFJ MFJ-939I/939K/939Y 1. Toll Free 1-866-666-8600. Screwdriver set Nut driver set Electrician's pliers Knife Clear wrapping tape, 2 inches wide Air variable capacitor with wide plate spacing F drill bit 2 brass machine screws, 1/4 by 2 inches, with 2 wing nuts, 2 hex nuts and 6 flat washers 3 ring terminals, 1/4 inch Soldering iron and solder. 3 out of 5 stars 54. You also get a Stationary Tune mode that lets you tune your transceiver without your antenna constantly moving - - then touch TUNE when you’re ready. The SDC-103 Screwdriver Antenna Controller will automatically adjust the resonant frequency of a screwdriver antenna. MFJ-1661 MAN SCREW DRIVE ANTENNA, 2-40M L The vertically oriented STL antenna’s figure-of-8 doughnut shaped radiation pattern maximum is in the plane of the loop with nulls at right angles to the plane of the loop. The whip is an MFJ-1979. It would take a 8 ft antenna with a small coil to do the same. 5 ft. #8547, St. This should be low cost, and easy to build. The antenna consists of a collapsible whip, loading coil assembly, universal mount, counterpoise wire, and choke. 5 ft and 10 ft whip in the package. The Buddipole™ - HF portable dipole antenna system, Welcome to the home of the Buddipole™, an hf/vhf portable dipole antenna system which is designed to be modular, versatile, and efficient. 50 sec. 1 get answers to many common questions by reading this Hi-Q Antennas™ installation manual, The new MFJ-910 or 909 HF Mobile Antenna Matcher does a good job on  2005 MFJ Enterprises, Inc. The battery tray door is located on the back of the analyzer case near its base. Stick screwdriver in ground, pole over screwdriver and you're ready to go! If it's not too windy, that should work. MFJ-1662 40m to 2m "screwdriver motor" type mobile antenna *$379. 6,10,12,15,17,20,30,40 METER INSTRUCTION MANUAL COBWEB ANTENNA HD. Its purpose is to make the antenna system "look like" a purely resistive load - usually 50 Ohms for the vast majority of ham radio transceivers or receivers nowadays. 0, 6H thread; Fixed antenna; 3/4 in. It was known for its strong emphasis on technical articles and for the lengthy editorials in each issue by its founder and publisher, Wayne Works with most screwdriver antennas and Icom, Kenwood, Yaesu, Elecraft transceivers . The MFJ-9420 is specially designed to COPYRIGHT 2018 MFJ Enterprises Inc. Assembling the basic structure was pretty easy, but stringing it up took a long time. mfj-1925 EFHW-8010-1K ™ Multi-Band End Fed Half Wave Antenna . MFJ-1750 5/8 Wave 2-Meter Ground Plane Antenna MFJ PulsarTM Base/Repeater Antennas for VHF/UHF and 6-Meters MFJ HF Mobile HamTennaTM Whips MFJ HF Portable/Mobile Manual Screwdriver Antennas MFJ Programmable Screwdriver Antenna Controllers MFJ-1622 HF Apartment Antenna MFJ-1778 All-band G5RV Wire Antenna MFJ Telescopic Fiberglass and Aluminum HF Antenna Tuner w/ Meter & Antenna Switch. $569. Coax lines may be fed direct or through the tuner as selected by the ANTENNA SELECTOR switch. I used / am using this MFJ-1786 antenna at various QTHs from a mountain top overlooking the Great Smoky Mountains National Park, to our beachfront condo 100 yards from the Gulf of Mexico to our current home in Potomac, Maryland 15 miles from the White House and Congress – and from all three locations worked a total of over 100 18AVS, or Hy-Gain 14 AVQ. MFJ-1662 Instruction Manual Screwdriver Antenna MFJ 1662 MOBILE SCREWDRIVER ANTENNA Introduction The MFJ-1662 manually tuned screwdriver antenna was designed for continuous operation from 6-40 meters using a supplied whip 10 feet in length. 25 An indoor inverted U wire antenna. 95 * Buy It I didnt need a antenna for mobile operation, but for Pedestrain Mobile work. It’s possible to download the document as PDF or print. A 4-digit counter is used to display the current MFJ-1899T: HF/VHF/UHF Field Antenna: 80-6m Portable Antenna: BNC Adapter: BNC Adapter: BNC Adapter: BNC Adapter: SO-239 to BNC Male: BNC Female to PL-259: BNC Female to BNC Female: BNC to Banana Jacks: Low Power Comms: Low Power Comms: More QRP Power: Portable Antennas: ARRL Low Power Comm 3: ARRL Low Power Comm 4: ARRL More QRP Power: Portable This control unit is designed to operate with a screwdriver antenna that operates on 12 volts. 2-29MHz Screwdriver Antenna, 1. 8 - 60 MHZ 300W: R 3 389. You get super accurate, ultra-fast and extremely reliable tuning with 88 programmable memories. Flip the switch one way, the antenna tunes up in frequency, flip the switch the other way, and the antenna tunes down in frequency. It features a counter to count turns of the motor inside the antenna. EST (770) 614-7443 Phone (678) 731-7681 Fax E-Mail 312 Swanson Drive Suite B Lawrenceville, GA 30043 Mar 04, 2017 · MFJ-1924 Mobile Screwdriver Antenna Controller Settings I have been using an MFJ-1924 Controller on my HiQ 4/80 mobile antenna for a number of years. Works great! As far as auto tuners go, I use the LDG AT7000 (replaced by the LDG IT7000) which works all bands 160 thru 6 meters. all is needed is one of the mfj--model 1661 1662 1664 1668 antenna's and a ground and mounted to The Ameritron© model SDC-102 is an antenna controller that sports 10 memory presets with full manual jog control. 1 . It adjusts the antenna until the measured SWR is less than 1. Page 2. mfj mfj1600t: hf mobile/portable whip extender 4-1/2' $23. MFJ made it possible for the popular Yaesu ATAS series antenna to be used with other radios such as the IC-706, TS-50 and others. An "antenna tuner" like this one is very versatile; it will allow a ham to use a wide range of wires and other metal objects as antennas. A Diamond, Comet, MFJ 5" Mag or other mobile mount can be used. You'll need headphones, a key, and an antenna too. uk 01922 414796, for all your High Sierra HF Mobile Antennas accessories needs. The manual clearly states that all of the band memory positions are preset to on, when in fact they are preset to off! Once you get past the omissions and pigeon English, they work so-so. 95 (Inc VAT at 20%) Add To Cart View Details Wishlist Designed as a multi-band, portable antenna for 40m - 10m, the Buddistick™ is an excellent performer with any rig up to 250 watts. When combined with the MFJ Ground-Coupled™ Portable Antenna Base or other suitable grounding system, such as radial system, the result is a small vertical antenna Mobile Manual Screwdriver Antennas. $845. 5-30MHz Mobile Radio Amateur Ham Jan 28, 2019 · A HF Screwdriver Antenna on a RV - Duration: 3:18. MFJ-1662, 6-40 m, - dB MFJ- 1966, - m, - dB, 108" stainless whip, For most screwdriver antennas. 6-80 meters using a supplied whip 10 feet in length. MFJ-1668 Instruction Manual Screwdriver Antenna Mobile Setup 1. 8-30 MHz 1500 Watts: MFJ-969 1. MFJ-1786 Loop Antenna – My Stealth Antenna Installations. 3. 0 out of 5 stars 3. It will work with any HF radio transmitter. 8-30 MHz 300 Watts AutoTuner: MFJ-993BRT 1. I used a Milwaukee 12v driver to tighten the screws on the poles and the plates with a 5/16" box wrench on the nylock nut below. MFJ-1927I 3. AV1568-450, 400-500 MFJ-1661, 2-40 m, - dB, Manual screwdriver. New MFJ  MFJ MFJ-1668 Manual Adjustment 3. The MFJ-1925 puts DC voltage on the center conductor of the coax to control the Atas 100. The TM-1Y Automatic Motorized Antenna Controller for Yaesu Radios. 2 . Example: My 2 ft mobile screwdriver antenna with a 2 ft mast and 15 in diameter 6 radial caphat tunes the 10 meter band with almost no added loading coil (antenna topped out ). SUBSCRIBE  Product Review: MFJ-1664 Portable Screwdriver Antenna MFJ with manual screwdriver antennas designed for BOTH mobile and portable uses. TuneMatic is a self-contained antenna controller which will automatically adjust the acceptable resonant frequency of a screwdriver/motorized antenna. These Hi-Q Antennas™ products have the highest radiation efficiency and the highest level of quality Ameritron AutomaticTune mode automatically tunes your screwdriver antenna for lowest SWR as you tune your transceiver! You get super accurate, ultra-fast and extremely reliable tuning with 88 programmable memories. 95 out of stock : mfj1699t : mfj mfj1699t: 10-band hf/vhf 80m-2m mobile antenna, 200w, 3/8x24 $72. When using the antennas alone or with an antenna tuner, any given frequency will be resonant in two different stretches of the antenna, but the antenna will always be more efficient with the longer length. 28 Jan 2019 To follow up on my previous video about antenna tuners, let me show you a useful antenna that I picked up months ago, but haven't had a  12 Nov 2019 This is a must have with a motorized HF antenna, such as my Tarheel. AV1568-405, 380-430 MHz, 2 dBi, Indoor panel antenna. Jan 29, 2019 · OCCUR IF THE ANTENNA COMES INTO CONTACT WITH OVERHEAD OBSTRUCTIONS OR POWER LINES. 3906 Oakland Ave. m. This unit is compact and ideal for mobile installation (H 2 ¾’’, W 4’’, D 1½’’). 95 out of stock This photo shows the lower mast section, the coil, and the power drive assembly for the antenna. May 22, 2013 · Modified MFJ-1924 Antenna Controller. Apr 16, 2013 · The SDC-102 lets you save 10 screwdriver antenna positions in memory. A screwdriver antenna can also be used with the base. The transmatch, or ham radio antenna tuner, is a variable impedance matching device. The power screwdriver is a Black & Decker unit that cost $18 at Lowes. 5'Whip) Manual Screwdriver Antenna Price: $169. The screw heads will be sheared off if too much torque is applied. flat blade screwdriver and turn clockwise to increase contrast. Welcome, Guest SDC-102 Screwdriver Controller with Memory Instruction Manual 2006 Ameritron 1 Introduction The SDC-102 Screwdriver Controller provides manual operation for tuning screwdriver antennas. 5KW, Package . Our PC department stocks the latest components for upgrading your PC, building your own PC, or having us build one for you. MFJ-1662. Love my KX2! In order to support the fishing pole, some guys pick up a long screwdriver, with a handle narrow enough to fit inside the bottom of the pole. In addition, tuned  MFJ-1799. Use MFJ Bug Catcher, MFJ-2620/2640T, MFJ manual screwdriver antenna, Hustler or   Hi-Q Antennas™ design and screwdriver-type designs, click here. Screwdriver antenna. TuneMatic operates anywhere between 1-60 MHz, and supports a wide variety of screwdriver-type tunable antennas. a) Copper Loop Construction First, I constructed an octagonal magnetic loop antenna using 20 feet of copper tubing and 8 - 45 degree elbows purchased at Home Depot. 8-60 MHz 300 Watts: MFJ-948 and MFJ-949E 1. Replacing a bad PL-259 connector; Research an Old License or Enhancing Omnidirectional NVIS and DX for the Alpha HD-FMJ and ProMaster Antenna . Nov 13, 2019 · A. Contact KE4KDY Keith Howell, ke4kdy@protonmail. Covers 6-40 Meters 4-1/2 foot whip. Weight: 5 lbs MFJ's new manually tuned screwdriver antenna lets you operate all bands between 80 and 2 meters, including all WARC bands. 40. 25 Feet Tall - 200 Watts PEP. Remove the antenna from the packaging. Many antennas operate on only 3 or 4 volts, a Dropping Resistor can be used inline with the motor wires to bring the voltage down. The assembly instructions tell you how to first install the balun and then connect the upper and lower elements. 4 . MFJ-1796 Vertical Antenna Instructions 5 During assembly of this antenna refer to the figures in this manual and the picture on Page 1. 8. OPE750: Optional element for SD330. The controller reads the CI-V frequency data from a compatible ICOM radio. TuneMatic operates over a range of 1-60MHz, and supports a wide variety of screwdriver-type tunable antennas. Nov 23, 2018 · the MFJ-259 schematic has the info you need. Key Jack: Accepts 3. FREE Shipping. We want to make a screwdriver antenna just fot fun and experimenting. MFJ Enterprises Inc,Ameritron,Hy-Gain,Hygain,Cushcraft,Vectronics,Mirage,MFJ,MFJ Enterprises,Antenna,Radio,Ham Radio,Amateur Radio,Tuner,Analyzer,Starkville,Amplifier The MFJ-1622 works well indoors mounted to a desk or table as well. A 10 foot telescoping whip (19 inches collapsed) is included for fixed mobile operation only. Some times a file can cover more models, and when this happened, it is typical named "TM-2530_2550_2570". This exclusive MFJ feature protects your This exclusive MFJ feature protects your amplifier by taking your amplifier off-line should the SWR increase above a user-defined pre-set limit. No signs of arcing. Capable of automatically tuning across its frequency range in less than a 50th of a second, it is compatible with virtually any HF transceiver including frequency hopping MFJ-1792/1793 Instruction Manual Vertical Antenna 2 The radiating element on the 80 meter band is 33 feet tall, constructed with large diameter aluminum tubing. The ham world has found the perfect HF/ VHF antenna for mobile/portable operation . 00: MFJ-1668 80m to 6m "screwdriver motor" type mobile antenna *$439. In the tutorial, you'll find out how to make this temporary mount that can be used when going out into the wild or just hanging around your home. I had a TV antenna on the chimney already so this was an easy choice to use as well. In addition, tuned positions can be saved in one of the 10 presets so it can be recalled later. A manual copy is included. 8-30 MHz 300 Watts AutoTuner: MFJ If you have antenna restrictions, neighbors that tend to complain about antennas, simply want to operate without drawing attention…or you want a lightweight multi-band antenna to use in portable or emergency situations, the CHV-5X is a great choice. The MFJ-1924 Screwdriver Controller provides manual operation for tuning screwdriver antennas. Click image to enlarge. $167. telescopic whip helps you really get your signal out and work that DX! A shorter, 4. KB3WFV 19,161 views. Place a 3/8“ lock washer onto the 3/8 X 24 thread of the desired whip. (3. New question. 5 mm plug from key or keyer, mono wiring. Reflected Power and Return Loss. 95 in stock : mfj1699s : mfj mfj1699s: 10-band hf/vhf 80m-2m mobile antenna, 200w, so-239 $72. Antenna Jack: Accepts RCA plug from 50 ohm antenna. The MFJ-1662 Mobile Screwdriver Antenna covers 40-2 Meters with 4½ foot mobile or 10 foot fixed operation telescoping whip. 040 Kbytes: CG Antenna SB-2000 Operating manual. I am using the MFJ 1924 Screwdriver Controller to operate on 20, 30 and 40 meters. It provides reliable matching of frequencies from 1. The whips can be mounted either on the antenna base or on the mfj mfj1668: hf mobile manual screwdriver 80-6m 36" x 2" coil $173. It is partially assembled and includes a MFJ 1:1 Balun. The four-digit readout makes tuning TennaTronix Turbo Tuner 2 Automatic Screwdriver Antenna Controller for Icom HF Radios MFJ-1699T 10-Band HF/VHF 80 Thru 2M Mobile Antenna with 3/8-24 Connector, Handles 200W Xiegu G1M G-Core Portable SDR HF Transceiver QRP Quad Band Short-Wave 5W SSB CW AM 0. 5 - 54 MHz Screwdriver Mobile Antenna - 11. MFJ MFJ-994B 1. 95 special order : mfj1932 : mfj mfj1932: all band ground radials $39. CG Antenna CG-3000N Manual. I am reducing my collection of radio equipment. When this adjustment is completed, your VFO will be now be calibrated accurately for both SSB and CW operation. SD330 HF Screwdriver Mobile Antenna. 80-6M (10' Whip), 40- 6M (4. We have been providing variable and straightforward mount devices since 2002. the amplifier and the output of the amplifier to the MFJ-986. MFJ-945E : Manual Antenna Tuner with 1. zip (REDUCED) MFJ-941D tuner (REDUCED) Here is a nice MFJ-941D Versa Tuner 2 that is a 300 watt tuner from a Non Smokeing SK estate. 4 1/2 foot long, 3/8 inch diameter fiberglass/copper conductor with 3/8x24 male and female mounts on ends. Page 2 MFJ-1622 Instruction Manual Window Mount Antenna [ ] 3 P l a s t i c w i r e t i e s Page 1 MFJ-1838 6,10,12,15,17,20,30,40 METER COBWEB ANTENNA INSTRUCTION MANUAL CAUTION: Read All Instructions Before Operating Equipment 300 Industrial Park Road Starkville, MS 39759 USA Tel: 662-323-5869 Fax: 662-323-6551 COPYRIGHT 2018 MFJ Enterprises Inc. The MFJ-1662 (40-2 Meters) is termed a Mobile Antenna because it covers its respective frequency ranges with the short 1. TM-2550 when you search with the keyword "TM-2550" or "TM2550" and not find any thing, it can occur that the model exist in the archive. The Care and Feeding of a Condo Antenna Farm QST April 2001, pp. MFJ-1927K . 20 sec. 73 Magazine (also known as 73 Amateur Radio Today) (OCLC 22239204) was a United States-based amateur radio magazine that was published from 1960 to 2003. Gamma HPS-1a Compact Power Supply Review: Tiny switcher handles 100-watt transceiver. • ANT Button: Used to select the antenna to tune. MFJ-939I/939K/939Y 1. It has a few very small scratches on the top. In my Antenna MFJ-1777 $4995 Discone Antenna 25-1300 MHz MFJ-1868 $5995 Antenna Tripod 40-inch between legs MFJ-1918 $39 95 1. This will provide a semi-permanent installation. Joseph, MO 64508 If sending something to us by UPS or FedEX send to: Tarheel Antennas Inc. screwdriver to unscrew hose clamp and insert band Tarheel Antenna Inc. , Starkville, MS. 73, George K2WO The Outbacker All-Band HF Mobile Antenna. The supplied 4 ½ foot whip can be used for mobile or limited space operation. 95 1 in stock : mfj1675t : mfj mfj1675t: 75m hf mobile ham whip $29. remingtonh 51,910 views. Connect the controller to your Icom radio and the MFJ-1926 receives the frequency data and will automatically tune your screwdriver antenna. A 20m dipole is easy enough to make up using thin wire and lightweight RG-174 coax. 89. Includes discussion of MFJ-58B Antenna Kit. For example, the station is currently limited to a single dipole on 40 meters. Only 5 left in stock MFJ-1922 Screwdriver Antenna Controller with counter The MFJ-1922 is designed to give up/down control to tune most screwdriver type antennas. Two or more taps will be required for full phone band operation on 40 and 75 meters. On 3700 kHz the SWR is 1. When I checked both my 2-80 dipoles with an MFJ-259B antenna analyzer they both had an SWR less than 1. The yaesu atas screwdriver antenna. I used / am using this MFJ-1786 antenna at various QTHs from a mountain top overlooking the Great Smoky Mountains National Park, to our beachfront condo 100 yards from the Gulf of Mexico to our current home in Potomac, Maryland 15 miles from the White House and Congress – and from all three locations worked a total of over 100 MFJ "Gum Drop" 3/8-24 Antenna Mount. The following is a list of the holes and their intended use. In stock! Now $179. Please call 1-800-RFPARTS (1-800-737-2787) or (760) 744-0700 in advance and place your credit card order. 3. 53-230 MHZ, Antenna Analyzer Impedance and SWR MFJ-1789 Rotatable Mini-Dipole Instruction Manual 5 TOOLS AND TIME REQUIRED FOR ASSEMBLY The estimated assembly time is two hours. 2,6,10,12,15,17,20,30,40,80 METER. Specifications: Bands: 3. 5 - 30MHz : Power Supply voltage & current: DC 12v 100mA : Max Power Rating: All information, images, and documents on this website are the sole property of MFJ Enterprises, Inc. Weighs just 1. Convert base loaded antennas to highly efficient center loaded antennas. But you can't use the antenna unless you have the MFJ-1925 antenna controller. Compact and Portable Antenna Roundup QST March 1998, pp. to 4:30 p. TAK-tenna 80 Standard Style Multiband Antenna Boom is 48 inches / 122 cm long; spiral radiating elements have 38 inch / 96 cm diameter; weight is 6 pounds / 2,7 Kg. Yours for $65. MFJ's new Manually Tuned Screwdriver Antennas let you operate all bands 80-6 Meters continuously including all WARC bands and the new 60 Meter bands  The MFJ-1668 HF Mobile 80-6m Screw-driver Antenna, MFJ's Manual Screwdriver Antenna series are continuous coverage, multiband, vertical HF antennas  Convert base loaded antennas to highly efficient center loaded antennas. The MFJ-1925 was designed to control the Yaesu Atas 100 Screwdriver Antenna. Updated 6/3/2006 showing how to add HF Antenna Tuner w/ Meter & Antenna Switch. The MFJ-58B Cross Antenna Kit The MFJ-935B Loop Tuner manual does a great job pointing out the best loop lengths for different frequency ranges so that the user can build his own wire loop. 95 (Inc VAT at 20%) Add To Cart View Details Wishlist MFJ-259C 530 KHz - 230 MHz SWR Analyzer World’s most popular SWR analyzer is super easy-to-use The famous MFJ-259C gives you a complete picture of your antenna’s performance. And I am very happy with both of these antennas. Vertical Antenna. Purchased new in 2017. The MFJ-1664 (80-6 Meters) is termed a Mobile Antenna because it covers its respective frequency ranges with the short 1. The SMC Mobile HF Loop Antenna, developed for NVIS communication across 3-15MHz, overcomes these limitations by having high radiation efficiency and no skip zone whatsoever. MFJ HF Portable/Mobile Manual Screwdriver Antennas let you operate all bands 80 through 6-meters and the new 60-meter band, or 40 through 2-meters continuously, including all WARC bands, depending upon the model you select. The resistor in series with the motor has since been moved to the controller in the cab of the truck, and the wiring replaced with 2 conductor #20 shielded cable. When horizontally mounted, the antenna pattern is omnidirectional with nulls straight up and My mobile setup consists of a Yaesu ATAS-120A screwdriver antenna for HF and 6 meters, and an MFJ-1432 antenna for 2 meters and 70 cm. MFJ’s exclusive AutoParkTM feature automatically bottoms your antenna for parking in your garage and resets and calibrates your counter each time to eliminate antenna slippage and turns count errors. Please note High Sierra no longer in production, however the instruction manual with photos is on line. I stripted a lot of wire for the coil. One of the advantages of a screwdriver antenna is that you can control it from the operators position. zip: 125 Kbytes: CG Antenna CG-3000 Service manual. 72-78 (Product Review) MFJ Enterprises Inc. SDC-103 Automatic Screwdriver Controller (ICOM) Instruction Manual 2006 Ameritron 1 Introduction (A) Controller with six wires. 1:1, the one on the radio is less than 1. mail to ALL 50 STATES. restrictions keep you off the air! MFJ-1901 Assembly Manual Portable Antenna Base 7 8. Connect the antenna(s) to the tuner as follows: A. On the other hand, by switching to REFlected, an antenna can be tuned by simply finding the minimum reading. Correspondence: The Venetian Blind Antenna, QST June 2001, p. The antenna originally didn't work at all on 80 meters. the cluster of diodes, caps and resistors around the antenna connector (upper center of schematic) has the various measurement outputs. I cut the antenna for 3. Reviews: 4 I think this could be the sleeper of all manual screwdriver type antennas. MFJ-1924 Screwdriver Controller with Memory Instruction Manual 2006 MFJ Enterprises, Inc. The largest amplifiers that can safely be used include the Heathkit SB-200 and 201, Collins 30L1, and Ameritron's AL-600 and AL-811 series of amplifiers. Also listing a TS-50, AT-50 and power supply. Manufacturers of Amateur Radio Accessories, affectionately MFJ-909 Matches HF - Vertical mobile screwdriver antennas by adding capacitance. 5' Mobile/10' Fixed Whip) Manual Screwdriver Antenna; $159. ALWAYS USE LOCK WASHERS FOR MOBILE INSTALLATIONS. I got tired of changing out single band whips and then saw this MFJ1664 Manual Screwdriver antenna in their catalog. Thank you for purchasing the MFJ-1799 vertical HF antenna. 5. Using the diagram on page 4 identify the proper holes to be used. US Patent numbers: 6,275. MFJ Manuals. {uThe linear amplifier is more happy when the inbuilt Our 80 band model is operated to 6 meters using an antenna tuner. MFJ - 1925I2 yaesu atas 100% antenna controller for icom order the but you can't use unless have MFJ -1925. my “MacGyver” homebrew screwdriver antenna works great on 80/75 (3. 154 B2 The contactor is in CONSTANT contact with TWO turns of the loading coil under 8 lb of preset pressure, that is 720 degrees of contact with the SILVER plated beryllium copper "D" shaped tempered the MFJ-415B module until the signal from your calibrated source is roughly zero-beat. This small unit is an inline switch that gives you up/down control to tune the Atas 100. [TowerTalk] Using Screwdriver Antenna as a Base Antenna, K [TowerTalk] Using Screwdriver Antenna as a Base Antenna, Jim Lux <= [TowerTalk] Using Screwdriver Antenna as a Base Antenna, Chuck Counselman [TowerTalk] 40m rotatable dipole, Jeff Griffin [TowerTalk] 40m rotatable dipole, Michael Tope MFJ-1795W Vertical Antenna Instruction Manual 6-32” screw Loading Coil Assembly Figure 3 IMPORTANT: Do not use a high torque electric screwdriver to mount the capacitance spokes. The RF Sensing Module This unit is to be mounted close to the Radio inline with the antenna feed. VFO Tuning: Selects transceiver's operating frequency. Their biggest drawback are the cheap push buttons. Beam antenna for 12 and 17 meters. Unlike many END FED antennas on the market, this one does not require the Antenna Tuner to operate. mfj manual screwdriver antenna

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