Normally in the FM side of the tuner middle pin and other pin capacitance will be nearly 15pF to 40pF. use today is a random-length wire coupled to the transmitter or transceiver through a Transmatch, as sketched in Fig. Television is a mass medium for advertising, entertainment and …Z-match Antenna Tuner Schematic The only thing about making antenna tuners is in the Antenna book. I knew I would rarely use it… so I built one from junk parts. The taps are connected to a front panel mounted 12 position switch. This is a image galleries about Tv Tuner Schematic Diagram. The circuit is fairly simple but construction a lot more difficult so this page will concentrate on that aspect. It follows the Z-match made by Phil Salas, AD5X, which was reported in QST January 2003 and which has been added to More QRP Power by the ARRL. It will match almost any random length of wire to any transmitter from 160 through 10 meters. This kit has been around for several y ears, but recently I BLT Wiring Diagram Fig. 10 and No. Random Wire Antenna Tuner Schematic. Like this one: How to Build a Cheap Antenna Tuner or this one: SWL Receiving Antenna Experiments . 1. MFJ-926B Automatic Antenna Tuner covers the entire HF band and will match a random wire or coax-fed antenna 1. The mcHF consists of two circuit boards called the UI board and the RF board. Frequency Hopping (FH) A major new capability is the ability of the SINCGARS radios to frequency hop covering the 30 to 87. The MFJ-16010 is a variable L-network random wire antenna tuner designed to match the low Buy MFJ-902H is a fully functional 10 to 80m ATU and is based around the familiar T-match circuit. Instruction Manual General Information The MFJ-969 is a 300 watt RF output power antenna tuner that will match any transmitter or transceiver to virtually any antenna. I had the air variable Impedance*. One of the most common ways to match a transmitter to a non-resonant antenna is to use a 9:1 UnUn combined with an antenna tuner. The EchoMp3 is a small MP3 player. For end fed antennas I use an Unun which brings the impedance down to where a tuner can match it. You apply a little RF and adjust the antenna tuner to achieve the lowest SWR. One of the simplest yet very functional antennas is the Marconi -- often called a random wire or long wire. The term can refer to a television set, a television program ("TV show"), or the medium of television transmission. 18 or smaller wire. Even though this is an unbalanced tuner, there is little point using an unbalanced output (coax). You can operate 80 through 10 Meters -- anywhere with any transceiver -- use any coax fed or random wire antenna. I do use an OCF dipole and find that it needs a tuner to get an SWR below 3:1. 101science. The MFJ-941B is designed to match virtually any transmitter to almost any antenna, including dipoles, inverted vees, verticals, mobile whips, beams, random wires, and others fed by coax lines, balanced lines, or a single wire, A 1:4 balun is built in forMFJ-939 Plug&Play IntelliTuner Automatic Antenna Tuner Instruction Manual 2006-2015 MFJ Enterprises, Inc. Antenna Tuners, Antenna Matchboxes, ATU. • Loop*. B. has been moved to the document: TV and Monitor CRT (Picture Tube) Information. • Ver(cal*. CRT Basics Note: Most of the information on TV and monitor CRT construction, operation, interference and other problems. The primary featuresBack to TV Repair FAQ Table of Contents. You build this device, connect the transceiver and a longwire antenna of almost random wire, and GO!!!Altoids Longwire Antenna Tuner Altoids Longwire Tuner. The main category is Antenna Tuners that is about Homebrewing antenna tuners. As typically installed, it is a compromise antenna but great for …TheMFJVersa-Tuners The rearview ofthe Versa-Tuner III. The MFJ-902/902H Travel Antenna Tuner was specially compact-built for Icom IC-706MKIIG, Yaesu FT-100, Kenwood TS-50, and other rigs with a built-in SWR Meter. This circuit is for a QRP (low power) antenna tuner (transmatch) for use in the short wave amateur radio bands from 3-30 Mhz. My first antenna, errected in haste was a random end fed, joined to an MFJ versa tuner by coax. . To calibrate, I adjusted the coil inductance value to allow tuning at the low end. About QRP Random Wire Tuner The resource is currently listed in dxzone. A multi-band wire antenna that performs exceptionally well even though it confounds antenna modeling software Article by W5GI ( SK ) The design of the Mystery antenna was inspired by an article written by James E. 8-30 MHz at a full 200 Watts SSB/CW MFJ-929 1. Building a 9:1 Un-Un for longwire antenna I'm always fascinated by the "magic" 9/1 un-un for longwire antennas, also called "Magnetic Longwire Balun". A signal transmitted to prevent its detection by any station other than the intended recipient C. • Windom*. End Fed Half Wave Antenna Coupler Schematic – 7-30MHz Do you foresee any problems using this on a sailboat for a vertical or sloper wire antenna? Reply. Run the antenna connected to theThe antenna tuner is a straightforward tank circuit with a ganged antenna capacitor. The tuner can be installed directly at the antenna and is supplied with power via the coaxial cable. 7W on 30 and about 1. Four variation of a random wire antenna with a length of 18. MFJ web publishes their manual including the schematic for the MFJ-16010 random wire antenna tuner. 21 Impedance of 80M Dipole vs Height open circuit • High current parts of antenna radiate Feed A Random Wire From the EndMFJ-994BRT HF Automatic Remote Antenna Tuner Instruction Manual 2011 MFJ Enterprises, Inc. 72/73, Steve, W1SFRThe random wire antenna is probably one of the least expensive, easiest and cheapest HF antennas to use if you have a tuner and you want to get the "most" out of a length of "random" wire without having to pull out that calculator, doing the math, getting the center insulator built or bought, running the feedline, and all the rest that goes LDG AT-200Pro Automatic Antenna Tuner If it does not have a roll-back circuit, limit power when tuning to 25 watts to avoid damage to your transmitter or transceiver. ”. I find that an end-fed half-wave is a great holiday antenna. Reviews and photos of vintage stereo tuners, including Kenwood, Sansui, Pioneer, McIntosh, Yamaha, Accuphase, Onkyo, Denon, Rotel, Technics, Tandberg, Magnum Dynalab The mixer is a bit of a hack. The transceiver is designed to receive and transmit SSB single sideband suppressed carrier (2R7J3E), semi-break-in CW telegraphy (350A1A), and compatible amplitude modulation (2R7A3E) signals. A series L-C circuit can be used to match a low-impedance load, as presented by a quarter-wave wire. 1 THE BASICS Introduction The MFJ-939 Plug&Play Intellituner TM a simple to install and convenient antenna tuner for use with Icom, Alinco, Kenwood, or Yaesu radios. I will try to take a photo of I (Z to A) The MFJ-16010 is a variable L-network random wire antenna tuner designed to match is a fully functional 10 to 80m ATU and is based around the familiar T-match circuit. The other end connects to the random-wire connector on a suitable antenna tuner. The ZM-2 has no inductance switching to mess with, just two variable capacitors to tune. Antenna Tuner Schematics The MFJ-16010 is a variable L-network random wire antenna tuner 30 Mhz with long wire antenna from 8 meters Schematic. A "Random Length Antenna Couplers," Schultz, Ham Radio, January1970. Random Wire Antenna. Page 1. Trimmers were added to allow dial calibration and compensation for different antennas. Fig. The following is just …Television (TV), sometimes shortened to tele or telly is a telecommunication medium used for transmitting moving images in monochrome (black and white), or in colour, and in two or three dimensions and sound. Reviews and photos of vintage stereo tuners, including Kenwood, Sansui, Pioneer, McIntosh, Yamaha, Accuphase, Onkyo, Denon, Rotel, Technics, Tandberg, Magnum Dynalab The Kachina MP-25 is a manpack type transceiver which may be used for portable, pedestrian mobile, vehicle mobile, or fixed installations. I’m new to antennas, but have a specific project where an end-fed antenna would make my project much easier, both due to weight and ease of installation. Match your transmitter or transceiver to virtually any antenna with antenna tuners from DX Engineering. I was developing 2. 8-30MHZ, 200W Compact IntelliTuner Automatic Antenna Tunerfor random wire and binding post with a 4:1 balun for balanced lines. This link is listed in our web site directory since Friday Dec 20 2013, and till today "QRP Random Wire Tuner" has been followed for a total of 1019 The MFJ-16010 is a variable L-network random wire antenna tuner designed to match the low output impedance of your transmitter to the high impedance of a random wire (or vice versa). I had the air variable So finally,my question is,can you suggest an antenna tuner schematic that works from 10 thru 80meters?I don't need nothing fancy,just to do it's Impedance*. Antenna analyzers display a time-varying representation of the modulation envelope. 5, 41, 58, 71, 84 feet. Schematics can be foundMuch has been written about the optimal length of a random wire antenna (sometimes called a long wire antenna), some of which is contradictory. '73. Custom 12 position inductor switch, tune/bypass switch, antenna and transmitter capacitors, BNC feedpoints for antenna and transmitter connections. 3W on 40. problem with a 1500 watt transmitter into a longwire antenna with a tuner remote from the shack I once was in need of a random-wire tuner and just didn't feel like buying one. Wire Antennas for the Beginner Every ham knows how to make and install wire antennas. Learn and research electronics, science, chemistry, biology, physics, math, astronomy, transistors, and much more. An L-network random wire tuner is probably the simplest matching network in existence, designs about on the net. * with battery, but without handset and antenna. 1) a single long wire using ground as the counterpoise and 2) a balanced antenna of some kind. Tuner The antenna tuner is based on a design developed by Dr. You can operate 80 through 10 Meters -- anywhere with any transceiver -- use any coax fed, random wire or balanced line antenna. Being a parallel resonant circuit, the Z-match canThe LDG RT-100MK2 is a 100 W automatic antenna tuner for split installation. '. Category: QRP uBITX QRP Transceiver. Reply. A tuner is only suitable to two types of antenna viz. Several versions are Inductors Antenna Tuner - This circuit is for a QRP (low power) antenna tuner. In this circuit diagram we have mention about FM tuning side only. The Last circuit was added on Sunday, November 5, 2017. 38 – Back Panel with mod parts added. 4 • Optional external Balun allows tuning of random length, long wire or ladder line fed antennasAll information, images, and documents on this website are the sole property of MFJ Enterprises, Inc. Antenna Tuner Circuits Arduino Antenna Tuner Tuner Rev A Prototype Control Board. Examples of Asymmetrical Antennas: Long Wire; Ground Plane; Windom (OCF); Mobile Whip. A "random wire" means an end fed antenna with a large possible range of impedance including high impedance. It's cheap and of excellent quality. 4 Note: To use the Random WIRE binding post, make sure to remove the antenna, if any, fromPackTenna Antenna System Ultralight, portable HF amateur radio antenna system. Wire loop supported by trees, Diamond BB7V Vertical Element with feedpoint resistive matching unit, "ground" radial wire, metal support pole, coaxial cable, ferrite feedline choke clamps, and grounding points. The fourth contact gave me 5/9 then proceeded to tell me that my antenna setup was not a good idea, and would not work very well. 2. The difference in my tuner is the coil is air wound and there is no extra capacitor in parallel with C 1 that can be switched in as needed. The PackTenna is a light weight, compact, portable HF antenna system ideal for operating on the trail, at the campsite, on Field Day, SOTA activation, air travel, or HOA restricted locations. For SWL-ing a smaller core can be used along with No. problem with a 1500 watt transmitter into a longwire antenna with a tuner remote from the shack The MFJ-16010 is a variable L-network random wire antenna tuner designed to match the low output impedance of your transmitter to the high impedance of a I once was in need of a random-wire tuner and just didn't feel like buying one. These are sometimes known as a Magnetic Longwire Balun. 7 mtr The graph in Figure 7 has been produced with data generated from 4NEC2 antenna modelling software for an antenna wire of 18. A random wire antenna is a radio antenna consisting of a long wire suspended above the ground, whose length does not bear a relation to the wavelength of the radio waves used, but is typically chosen more for convenience. An automatic antenna tunerThe MFJ-16010 is a variable L-network random wire antenna tuner designed to match the low output impedance of your transmitter to the high impedance of a random wire (or vice versa). I started out with an end fed half wave - one wire cut for 40 meters and one wire cut for 20 meters. waynemerry Power is lost across the tuner, depending on how difficult the match is. Dave has added a nice wrinkle - the SWR indicater employs TWO leds, not the normally seen single red LED. Or, the ALT, designed by noted QRP designer Steve Weber, KD1JV is a simple, yet effective tuner that will tune long wires on 40 - 10 Meters. This forms a two-wire transmission line, which helps to reduce external fields. Powered by a single AAA (HR03) 1V2 battery. MT1 is designed for the high-impedance long wire antenna, which can be used in consisting of two parts, namely LC matching circuit and the VSWR power Long wire or random wire antennas are very simple antennas. ATR-30 Instruction Manual Ameritron Antenna Tuner 3 The ANTENNA SELECTOR selects one of 3 rear panel SO-239 coaxial connectors or the wire-type wing-nut connections. Television is a mass medium for advertising, entertainment and …Back to TV Repair FAQ Table of Contents. Television is a mass medium for advertising, entertainment and …Sep 21, 2013 · "ZM-2 ATU (Antenna Tuning Unit) - Order The ZM-2 is a state of the art Antenna Tuning Unit. The MFJ-16010 is a variable L-network random wire antenna tuner designed to functional 10 to 80m ATU and is based around the familiar T-match 80-10M QRP Antenna Tuner . 36 – Parts Placement Diagram It should look like the picture below. Random wire or single wire line antennas should be connected to the WIRE binding post on the back of the tuner. 14 solid copper wire. Tuning is accomplished with the Secondary Condenser and then "peaking" the signal with the Antenna Condenser. The design is a combination wire winder + matching circuit + antenna wire all in one little package you can toss into your backpack. Its really an impedance transformer (9:1) to feed a high impedance, end fed (unbalanced) random wire which is likely to be a few hundred ohms, and transform it into something closer to a 50Ω (unbalanced) coaxial input, hence UnUn. Forrest Cook Introduction. The MFJ-16010 is a variable L-network random wire antenna tuner designed to match the low output impedance of your transmitter to the high impedance of a random wire (or viceLC-2 Loop Controller Operating Manual Advanced Electronic Applications, Inc. MFJ-926B HF Automatic Remote Antenna Tuner Instruction Manual 2010 MFJ Enterprises, Inc. Ulrich Rhode and published in several journals. Like everything using No. but not the meter circuit. I built the UI board first, and then built the power supply section of the – Use an antenna tuner to make the rig happy. This is a neat article, and was very imformative. Dec 30, 2005 · "Bob Miller" wrote in message [snip] One of my antennas is a 20 meter end fed wire, and I tune it with an old Heathkit AC-1 antenna tuner, which is made especially for randomMFJ-926B Automatic Antenna Tuner covers the entire HF band and will match a random wire or coax-fed antenna 1. but the next segment down should handle at least a lightweight inverted V configured wire. It's a brute of a transmitter that can produce over 400 watts of RF carrier output power in the AM mode and over 450 watts in the CW mode - all while being powered by the 115VAC line. Up to 256 kBps bitrate at 44,1 kHz supported. I will try to take a I will try The MFJ-16010 is a variable L-network random wire antenna tuner designed to functional 10 to 80m ATU and is based around the familiar T-match circuit. circuit'tuned'to'the'band'of' interest. 6 A coax fed antenna or dummy load may be connected toOwners Manual For The PackTenna Mini 9:1 coil * Requires tuner Good length for random wire: 29, 35. 5 to 5. Taylor, W2OZH, in which he described a low profile collinear coaxial array. Runs on a 18LF452 or 18LF458 at 20 MhZ. A 200-watt class-E AM transmitter used for non-sanctioned broadcasting on 1710 kHz. Box Antenna tuner 8 bandes FRI-Match ATU Pi-filter Z Match Tuner Schematic >>>CLICK HERE<<< Dan designed this circuit several years ago, and it has been used in several tuners, including the ALT, BLT, and the Roy Gregson designed Z-Match Tuners. MFJ-969 HF + 6-meter AntennaQRP Antenna Tuner (C) 2003, G. It will match almost any random length of wire to any transmitter from 160 This excellent random wire antenna tuner is the classic T-Match design which is known for wide matching range and smooth operation. A SIMPLE DIPOLE MT1 is designed for the high-impedance long wire antenna, which can be used in consisting of two parts, namely LC matching circuit and the VSWR power Long wire or random wire antennas are very simple antennas. The 56 ohm gate resistor terminates the filter in something close to its design impedance. Built well, nice roller coil, super construction, and no doubt will handle over a KW of RF. Negative peak limiter, over-modulation indicator, linear scale directional wattmeter, power supply and antenna circuits (schematic diagram) are also shown. I measured the Idss and Vp of the J310s in question and picked the source resistor to give about 2 mA. An antenna that will tune to an acceptable SWR using a common antenna tuner throughout the amateur radio …These are sometimes known as a Magnetic Longwire Balun. com is the internet science PORTAL to An amateur station transmission made at random without the proper call sign identification. When it comes to military transmitters the T-368 is a favorite of military radio enthusiast hams for several reasons. MFJ-939 Plug&Play IntelliTuner Automatic Antenna Tuner Instruction Manual 2006-2015 MFJ Enterprises, Inc. This tuner is Auto Antenna Tuner Schematic Author: SoftplicityApr 29, 2017 · A small L-match antenna coupler suitable for end-fed wire antennas on 7 - 30 MHz. The random wire should be at least 50 1. • Antenna*Tuners* Random'Length'Long'Wire'Antenna' . 1 The Basics Introduction The MFJ-926B HF Automatic Remote Antenna Tuner, the IntelliTuner TM, lets you rapidly tune any antenna automatically: unbalanced or single-wire. Build this random wire antenna - great for crystal radios Click on the image for a larger version Many of the projects on this web site such as simple crystal, transistor and tube radios will require a good antenna. Glossary of BMW Terms and Abbreviations. John M0UKD. Tuner Rev A Prototype Control Board be present on various points in an antenna tuner, even at lower RF power levels. Please note some adblockers will suppress the schematics as well as the advertisement so please disable if the schematic list is empty. Dec 30, 2005 · "Bob Miller" wrote in message [snip] One of my antennas is a 20 meter end fed wire, and I tune it with an old Heathkit AC-1 antenna tuner, which is made especially for randomDec 30, 2008 · The circuit for my tuner is given above. D. The tuner is designed for unbalanced antennas and has beside the two PL jacks for input and output, an additional screw for connecting an ground wire. 5 Set the TUNER switch to WIRE when using a random wire or balanced line fed antenna. A so-called random wire antenna is an end fed antenna. Do not connect WIRE and coax ANTENNA at same time! Both are connected in parallel. Dec 30, 2005 · "Bob Miller" wrote in message [snip] One of my antennas is a 20 meter end fed wire, and I tune it with an old Heathkit AC-1 antenna tuner, which is made especially for randomMuch has been written about the optimal length of a random wire antenna (sometimes called a long wire antenna), some of which is contradictory. 5 MHz to 30 MHz. . An antenna that will tune to an acceptable SWR using a common antenna tuner throughout the amateur radio …Wire Antennas for the Beginner Every ham knows how to make and install wire antennas. The tuner (for low power) can be made quite small, and 10 metres of wire provides 20m and 10m bands, and with MFJ ENTERPRISES, INC. The inductor is actually wound on 3 stacked (probably ferrite) cores which are tapped. The turns ratio is 3:1 for a the "neutral" wire in your circuit breaker box travels outside This is a image galleries about Tv Tuner Schematic Diagram. And it uses normal SD(HC) and MMC cards up to 4 GB. It is rated at handling power up to 3 kw and will match coax, balanced or random wireATR-30 Instruction Manual Ameritron Antenna Tuner 3 The ANTENNA SELECTOR selects one of 3 rear panel SO-239 coaxial connectors or the wire-type wing-nut connections. All of these choices are correct what is the schematic There are 2777 circuit schematics available. MAKE A HOMEBREW HF-VHF ANTENNA TUNER If you really must use a long wire referenced to ground, a simple way of using the . Feb 4, 2009 a recommendation for an “inexpensive manual antenna tuner that will own and then did a Google search for “random wire antenna tuner. A 9:1 Balun For Your End Fed Antenna End-Fed antennas do have their place in radio and other communications work. View and Download Sharp XL-70 service manual online. 3 A random wire antenna may be connected to the binding post marked WIRE. L Network Antenna Tuner Schematic The only thing about making antenna tuners is in the Antenna book. I just finished making a trial run on an experimental multiband antenna for use a simple endfed wire that I could use with the 703's internal autotuner and get I had tried several random lengths of wire alone with the 703 but could only get a out and you can even see the schematic for it pasted inside the lid of the box. You're right - it won't be resonant, and the tuner is just 'making the radio think' the antenna is resonant, but it could be very effective! It is a simple pi-tuner for a single wire antenna. Using either of the inputs, I can tune to a flat 1 to 1 on any band I want with 90' of wire. MFJ-939 Plug & Play Auto antenna Tuner. Magnetic-Mount Scanner Antennas…. These fed into a small matching box that I built using a schematic I found online. 0vdc using the panel meter as reference. the tuner is bypassed. The MFJ-16010 is a variable L-network random wire antenna tuner designed to match the low output impedance of your transmitter to the high impedance of a The other end connects to the random-wire connector on a suitable antenna tuner. 300 Industrial Park Road Starkville, MS 39759 USA Connect the antenna to the tuner. A random wire is just that - a random length of wire, possibly thrown over a tree limb or whatever gets it as high as possible fed with a tuner. You can also find other images like wiring diagram, parts diagram, replacement parts, electrical diagram, repair manuals, engine diagram, engine scheme, wiring harness, fuse box, vacuum diagram, timing belt, timing chain, brakes diagram, transmission diagram, and engine problems. 2W on 20, about 1. Whether you have a balanced, unbalanced, or single-wire antenna, our antenna tuners offer impedance-matching capabilities for more efficient power transfer. Of the three rear panel coaxial connectors, only COAX 1 and COAX 2 connectors are available using the matching network in the tuner. A Comparison by Bob Grove I recently discovered that a storage shelf in my radio repair shop bristled like a porcupine with whip antennas of various sizes that I had accumulated over the past couple of years from yard sales, flea markets, and dealer samples. There are some internal tuners that won’t tune up more than a 4:1 signal which can be a problem on 80 and 30m, but typical tuners that tune up to a 10:1 SWR work perfectly with the end fed random wire antenna. If it is a random wire antenna, connect it to binding CIRCUIT DESCRIPTION See the schematic diagram, Fig. (also called an antenna tuner or antenna coupler) to transform the antenna feed- point impedance to a value the transmitter can Random Wire Antenna Lengths. It is not just another standard tuner circuit repackaged. • Long*Wire*. A random wire antenna is a radio antenna consisting of a long wire suspended above the ground, a random wire antenna usually will also require an antenna tuner, The MFJ-994BRT and MFJ-998RT are remote versions of the current MFJ-994B (600 watt) and MFJ-998 (1500 watt) switched-L desk-top auto-tuners (the MFJ-994, an earlier version of the MFJ-994B, was reviewed in the August 2006 QST). 39 – Wiring diagram of additional wiring needed for mod When installed the wire is supported by buildings or trees using the insulators to prevent a short circuit to ground. CONTENTS Helpful Hints 1 random wire with an A/B switch to "check the band" or to look for additional antenna tuner is not necessary. 975 MHz band in 2,320 channels. :m The MFJ·984 Versa-TunerIV The MFJ-984 versa-TunerIV is the big gun of the MFJ line. (also called an antenna tuner or antenna coupler) to transform the antenna feed- point impedance to a value the transmitter can Dec 30, 2008 · The circuit for my tuner is given above. photo above: Inside the IP-501-A receiver showing the high quality construction In operation, the filaments are set to about 4. HF'Wire'Antenna' • Polariza(on* • Impedance* • Long*Wire* • Loop* • Windom* • Ver(cal* • Antenna*Tuners* • Dipoles* A simple "L" network (with the antenna attached to the capacitor side) provides a good match for a high-impedance load, such as a half-wavelength wire. The system was tested using a 100 W transceiverThank you for buying the NorCal BLT antenna tuner. A - processed vehicle speed signal A - "out" (Aus) AB - Airbag ABL - Brake system warning Lamp (2 color) ABS - Anti-lock Braking SystemBack to TV Repair FAQ Table of Contents. Several contacts ensued, with good reports. Diagram above: Broadband VertaLoop as described in this article. the single wire feeder should be kept away from the …The antenna tuner system can match loads of up to 26:1 initial VSWR within a frequency range of 3. 6 A coax fed antenna or dummy load may be connected toPosts about Random wire antenna written by waynemerry. com in 1 categories. Also for: Xl-70c. XL-70 Stereo System pdf manual download. The antenna lead from the tuner "longwire" terminal to the antenna should parallel and be reasonably close to the outside ground lead, if possible. When we assemble the Tuning Capacitor, we must be careful to select correct side of tuning capacitor. Random length wire antenna. 7mtr total length installed at an angle of 30 degrees over a selection of ground types. 35 – BLT Schematic Fig. Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from MFJ Enterprises, Inc. 100W Random Wire. Antenna Tuners. When I operate in the field, I want something that is