icom 2200h, yaesu 757 gx, mfj923 antenna tuner uhf/vhf, alan 2000 antenna matcher box, and others
Video Rating: 0 / 5
Realizzazione casalinga di un Accordatore di Antenna per HF, realizzato con l’ausilio di materiale recuperato ea costo quasi zero.
A COLLECTION OF MURA SWR/ANTENNA TUNER METERS VINTAGE NEW OLD STOCK. ———— VERY RARE ————-
Video Rating: 0 / 5
The making of my single element Delta Loop antenna. Designed for 11m but can be used on 10 which is what I built it for originally but it works on 20m and even down to 80m although obviously a good antenna tuner is required. Ideal for short spaces. I was going to build this for 20m but the length of the rods would have made it dearer than I wanted to pay. This project was to come in under budget at £25. Full build details on www.open-channel.co.uk
Video Rating: 5 / 5
This is the WS2018 MIPI RFFE product demonstration that WiSpry showed at the Mobile World Congress in Barcelona 2012. Shows the benefit of WiSpry Antenna Tuner both in free space and hand loaded / “deathgrip” condition. On the left is the response without a tuner, on the right is the same phone equipped with a WS2018 MIPI RFFE Antenna Tuner. MIPI® specifications and trademarks are property of MIPI Alliance, Inc. Learn more at: www.wispry.com/products
Video Rating: 5 / 5
Video Rating: 5 / 5
In this video I go through the theory of HF radio wave propagation. In part 2 of this video I’ll do a practicle demonstation of shortwave radio reception through various radios and antennas / antenna tuner. Concepts covered n this HAM radio tutorial: * Ground wave propagation * Sky wave propagation * Ionosphere layers D, E, F * Radio wave skip and hop zones * Pedersen Ray * EME Earth Moon Earth radio communications * Long path and short path radio waves Equipment used / mentioned in this video series: * K-Po WR2100 PLL Synthesized World Band Receiver. * Tecsun (Kaito) PL-389MP Short Wave radio * Yaesu FT-897 HF/VHF All Mode Transceiver * Yaesu FT-950 HF / 50MHz band All Mode Transceiver * Yaesu VX-6 Submersible Dual-Band FM Transceiver * Yaesu FT-817ND solar powered portable go-pack * Yaesu FRG-7000 Receiver * RigExpert AA-200 Antenna analyzer * Simple wire antenna * Par electronics Par End-Fedz EF-10-20-40 full length half wave dipole * Buddipole™- hf/vhf portable dipole antenna system * MFJ Deluxe Travel Antenna Tuner – MFJ-904H * Amateur Extra HAM radio license – KD8LON
Showcasing the classic Yaesu FT-840. A great radio which many wish Yaesu still manufactured.
Video Rating: 3 / 5
Homemade coil for antenna tuner. Out of an old car wiper motor, wire and plastic parts! Thanks for watching!!
Video Rating: 5 / 5
This is a demonstration of a simple system of a remotely comtrolled antenna tuning
Video Rating: 3 / 5
This is a little project that i have been thinking about building for awhile now, this is a VHF and UHF antenna tuner / matcher. This item well help you tune a random rubber duckie, outside antenna, or just a whip so your scanner well be able to RX better then it could before, depending on the coil used and just as many taps on it, you can fine tune a antenna perfectly to your scanner radio. I built this tuner and tested it on the bench with my Uniden Bearcat BC-796D 25-1300mhz scanning reciever.
Thoughts and Modifications of mine on the Vectronics VC-300M 300 Watt Mobile antenna tuner.
Video Rating: 5 / 5
First experiment with an arduino and a servo with a variable capacitor connected to a Tp-Link Ps310U through ethernet. Power on Ethernet. Fast and fine manual tuning with a Griffin Powermate. It work very well! Also mouse wheel work. Pc software writed with AutoHotKey
Video Rating: 5 / 5
ATSC Centronics antenna tuner installed! Connected via the componant ports. Set can display in 1080i when a 1080i signal is present. Works great and I show the main features of the antenna tuner. The HD on the Sony Trinitron is fantastic. Free TV is back baby!! I’m approximate 20 miles from most of the transmitter towers. The stonger staions work verywell at night. Lets say after 7:00 PM. In the late afternoon, I get pixallation and drop outs. I think perhaps due to cars going by
Video Rating: 5 / 5
This is a update video that deals with the new vertical antenna that i have constructed recently, i have since added another ground wire, this time it is buried in the ground and about 30feet or so long and 5inchs under ground. Another update in the works soon as i intend to add another ground wire and beef up the copper wire from the tuner to the vertical antenna.
Video Rating: 5 / 5
First test with Arduino tuner. The Lock button on FT817 is used to tune the capacitor. On 20 and 40 meters (actually) there is a fast tuning function. On different frequencies all the capacitors course are analyzed to find better SWR. Arduino is used to drive the servo,read frequency,swr and lock command from FT817 and set FM mode for tuning.At the end of tuning procedure Arduino set again LSB or USB depending the frequency. Based on Alain De Carolis project (alain.it)
This is a new Palstar AT2K tuner that I purchased, and I hope for it to be the last antenna tuner I ever buy. So far it’s living up to that reputation flawlessly. The construction is top notch, the level of attention to detail that Palstar has put into this tuner is stellar, and I wouldn’t hesitate to recommend this tuner to anybody, even with the most demanding antenna tuner needs.
This is version 2 of my demo for an arduino antenna tuner. In this version I swapped the coil with a new, somewhat larger one, which has an extra connection about halfway. Using a relay (controlled by the Arduino) the inductance can be switched between half and full. In each position, the capacitor makes a full sweep, while the Arduino monitors the reflection (watch the right meter in the back!). After this, it puts the inductor and capacitor in the position with the lowest SWR. This demo is quite slow, I experimented with different speeds and was able to let it tune within 2 seconds! Details, pictures, schema and code: ernest.utreg.net
Video Rating: 5 / 5
Small demonstration of my QRP setup.
Video Rating: 5 / 5
Ok, this is just a concept, I just wanted to show how the Arduino could be useful for radio amateurs. The SWR meter (in the back) is hooked up to the Arduino, also a servo is attached which drives a capacitor. This capacitor forms a simple L-tuner, together with an inductor which you can’t see on this video. The Arduino does a full sweep on the capacitor while measuring the SWR. It stores the position with the lowest SWR and after the sweep it rotates the capacitor to that position. Mind the SWR meter (right needle) while the capacitor is rotating! Details, pictures, schema and code: ernest.utreg.net
www.hamradiofinds.com Here is a video showing the JW MIller AT-2500 HF Ham Radio Automatic Antenna Tuner..This tuner covers 80-10 meters & will handle 2Kw+ of power..It has one input & 5 outputs, including one long wire connection..It runs on 110VAC, but can be switched to run on 220VAC..The tank circuit is well constucted using heavy duty parts..This would make a great addition to any HF ham radio shack..Thanks for watching..73s, Mel, WA5UTK
Video Rating: 4 / 5
Kworld HDmi Dvi VGA Qam/atsc External Digital Tv Tuner Box Hdtv
- You can watch HD (ATSC/QAM) television using the this devices HDMI, DVI, and VGA ports.
- Product supports MP3/JPG playback from a USB input
Watch HD ATSC/QAM TV on Your HDMI/DVI/VGA Monitors! You are not only converting your LCD monitor into a TV, but also, a digital photo frame. If this TVBox is brought home for entertaining your children, it is equipped with Parental Control Function.
List Price: $ 154.88
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Pure, con Highway 300Di la vecchia autoradio diventa una console digitale
Highway 300Di è dotata di un doppio tuner (ricevitore): mentre uno è sintonizzato sulla radio in ascolto, l'altro aggiorna dinamicamente la lista delle stazioni radio digitali presenti nella zona, eliminando dalla lista quelle non più ricevibili nel …
Read more on Megamodo
Tutti gli articoli con tag pure highway 300Di
Il sistema è molto semplice: un'unità centrale, un display con comandi integrati ed un'antenna esterna compongono il kit che è installabile su tutte la autoradio. Il sistema deve però essere montato da un installatore che, oltre a cablare l'auto, …
Read more on Gadgetblog (Blog)
Highway 300di, Pure trasforma l'autoradio in un ricevitore digitale …
Highway 300Di è dotata di un doppio tuner (ricevitore): mentre uno è sintonizzato sulla radio in ascolto, l'altro aggiorna dinamicamente la lista delle stazioni radio digitali presenti nella zona, eliminando dalla lista quelle non più ricevibili nel …
Read more on Macity
A more complete description of the tuner.
This video is of a MFJ model 989c antenna tuner. It shows the front panel controls, the watt meter functioning during tune up and checking SWR output. The video also shows SSB modulation of transmitter on avg and peak RF output meter readings levels.
Video Rating: 0 / 5
KELLNER: Improving the TV-to-computer connection
What I did get, versus an over-the-air antenna, was quite a bit more: Broadcast channels from Washington and Baltimore, their HD “extra” channels, certain public-affairs and local-government-related channels (some of which can cure the most persistent …
Read more on Washington Times
LCD-, LED-, plazmatelevízió
Most már általában mindegyik tévében van DVB-T vagy DVB-C tuner, ugyanis ezt a két standardot alkalmazzák Európában. A MPEG–4 tuner, amit Szerbiában terveznek bevezetni, jelenleg még nincs beépítve az új tévékben. Ezt a technológiát egész Európában …
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LG DM2350D: Recensione
LG Cinema3D DM2350D ha caratteristiche tecniche simili a un normale monitor per PC di ultima generazione, formato 16:9, 23 pollici di diagonale, risoluzione 1920×1080, un tempo di risposta di 5ms, tuner digitale terreste con supporto ai canali HD, …
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238C antenna tuner Ten-Tec HF Recorded @ uStream.Tv
This is a troubleshooting video, I have an FT-450AT displaying a really strange issue. If you know what’s causing it, leave a message in the comments! Thanks!
A demonstration of the Emtech ZM-2 Z Match antenna tuner tuning a short end-fed wire on 20m, 40m and 80m.
shack
Image by afternoon_sunlight
My father’s amateur radio station and workshop. The workshop on the left is necessary to get all those old tube radios on the right working.
2012 CES Show Report
It sports a single HDTV tuner (and comes with a mini HD antenna) and records to a hard drive that you provide. You get the full complement of DVR controls and programming options. The cost is $ 149 for the hardware and $ 4.99 per month for the service. …
Read more on Home Theater Review
Hands-on: Simple.TV might be the next big cord-cutting device
The biggest limitation as it stands now remains the single tuner, which means you can't record two programs at once. The Simple.TV does have an antenna-out connection, which you can run to your TV's tuner if you want to watch a different live program …
Read more on CNET
Hiltron to introduce new controller at CABSAT 2012
“The HSACU serves two key roles, being designed for integration into SNG trucks or for refurbishment of existing SNG antenna control systems,” explains Hiltron GmbH Managing Director Dr Michael Schiestl. “Housed in a compact rack-mountable chassis, …
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AirLink 101 ATVC102 Digital to Analog TV Converter Box w/Analog Pass Through
- AirLink 101 ATVC102 Digital to Analog TV Converter Box w/Analog Pass Through General Features:
- Color: Black Converts digital television signals to analog signals for analog televisions
- Searches through channels 2 through 69 automatically
- Includes Electronic Program Guide (EPG) function Includes V-chip parental controls
- Works with existing VHF/UHF or HDTV antenna for better picture sound quality
Hang on to that old analog television!Don’t ditch your old T.V. now that that signal’s gone to static, catch the digital signal with this AirLink 101 ATVC102 Digital to Analog TV Converter Box! This converter box takes digital television signals in through the RF input and converts them to analog signals for your old television. The ATVC102 also features an Electronic Program Guide and scans broadcast channels 2 through 69 automatically. It even has V-chip parental controls and a remote control,
List Price: $ 45.00
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Yaesu FT-450D 100 Watt , 6 thru 160M HF All-Mode Amateur Ham Radio Transceiver with Built-In Automatic Antenna Tuner & DSP Filtering!
- FM-USB-LSB-AM-CW, 100 Watts of Transmit output on 6-160M Amateur Radio.
- Receives 30Khz to 54Mhz continious including All Shortwave & AM broadcast.
- Built-In Automatic Antenna tuner, ctcss, 500 & 300 Hz CW Filters.
- Fast 400 MHz IF DSP (Digital Signal Processing) technology.
Yaesu FT-450D Deluxe HF All-mode Amateur Band Transceiver with built-in DSP signal processing.
* Features include CW beacon function, 500 memories , ctcss, & Built-in Automatic Antenna Tuner.
* Output is 100W CW-FM-SSB, & 25W AM carrier.
* Includes hand microphone.
* Receives 0.30 – 54Mhz, Transmits on the Amateur radio bands between 6-160 Meters.
* Requires 12 – 13.8Vdc at 22 Amps minimum for power hookup. Use an Optional regulated 13.8Vdc 25A or 30A Power supply for Home
List Price: $ 1,095.00
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Find More Antenna Tuner Products
The L-network 238B antenna tuner, vs. T or Pi network tuners
Video Rating: 4 / 5
Looking in the 1to1 HPS1500 Antenna Tuner
Video Rating: 5 / 5
This video describes The front panel controls of the DAIWA Model CNW-518. This tuner is rated at 2.5 kW RF output PEP. This rating is shown at the top right-hand corner of the RF wattage meter. The Part 2 shows the antenna tuner being loaded into a vertical antenna on 20 meters.
Video Rating: 5 / 5
Nokia 801T: Symbian per la Cina con dual mode, NFC e TV Tuner
Nell'immagine, infatti, è possibile notare anche un'antenna estraibile per ricevere, appunto, il segnale televisivo. Il design è ben curato, cosi come i materiali utilizzati per la costruzione: il corpo è interamente in alluminio, che dona una certa …
Read more on Cellulari.it
Jaguar XJ by Startech
L'ammiraglia della Casa inglese dopo l'incontro con il tuner tedesco si presenta come una berlina sportiva dotata di molti gadget tecnologici. Il tuner tedesco Startech ha presentato il suo ultimo lavoro dedicato all'ammiraglia Jaguar XJ: si tratta di …
Read more on Motori.it
DVB-T és az RTL
Vettem egy médialejátszót ami DVB-T tuner is (olyan olcsó volt hogy gyakorlatilag kiraboltam a kék gazdaságost), mindent kezel, szóval nem bántam meg. Egy baja van, mig nem kötök rá antennát addig minden indulásnál egy varázsló idegesití a felhasználót …
Read more on PC Fórum
Some cool Antenna tuner images:
Zippos Radios
Image by KN6KS
Video Rating: 5 / 5
Hauppauge 1404 WinTV-Aero-M Mobile TV Tuner
- External USB2 TV Tuner for PC laptops or netbooks
- Receive both ATSC digital TV signals and the new ATSC M/H mobile TV signals, over the air
- Compatible with Windows 7 and Vista
WinTV-Aero-m is an external USB2 TV Tuner for PC laptops or netbooks. WinTV-Aero-m is dual band technology and can receive both ATSC digital TV signals and the new ATSC M/H mobile TV signals, over the air. Live TV received by WinTV-Aero-m can be watched in a window, so you can work on your laptop or netbook while watching uninterrupted live TV. Simply plug WinTV-Aero-m into the USB port on a Windows based laptop or netbook, extend the antenna, and scan for over-the-air TV channels being broadcas
List Price: $ 79.99
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U.S. Patents Awarded to Inventors in Maryland (Nov. 16)
At least a first tuner of the plurality of tuners is operatively coupled to a radio frequency transmitter of the set top box. The radio frequency transmitter is configured to utilize an antenna to communicate a radio frequency signal for wirelessly …
Read more on Targeted News Service (subscription)
Pure launches second-generation in-car digital radio adapter
The original Highway relied on a simple wire antenna that was designed to be attached to the inside surface of the windscreen but the 300Di has a robust external aerial, which should greatly enhance reception. The 300Di is permanently installed in the …
Read more on The Independent
Homebrew antenna tuner project for HF. The roller controlled by the switches in the black box with limit switch.73′ de ik6bgj,Justin
Video Rating: 2 / 5
Video Rating: 0 / 5
Guest column: Frustrated with students' senseless vandalism
In the past four years, while parked on or near campus, my car has been [victim to a ] hit and run, gotten keyed, had the antenna tied into a knot and had a stereo-tuner thrown at the windshield. I just do not understand how anybody who is surviving …
Read more on Western Front
U.S. Patents Awarded to Inventors in Michigan (Nov. 24)
The abstract of the patent published by the US Patent and Trademark Office states: "A method of configuring a tuner includes sampling a radio frequency and measuring at least one signal quality metric for the sampled frequency. It is determined whether …
Read more on Targeted News Service (subscription)
New Palstar HF-AUTO Automatic Antenna Tuner. New HF-AUTO will have some of the following specs that supercedes the already complex design of the AT-AUTO with new and innovative design improvements. The HF-AUTO will function fast and flawlessly with ANY transmitter without plodding through menus and cables, that in most cases will not work with other accessories. Specifications: – 1 Watt to 2500 watts….average, peak, and peak-hold – Load into a 10:1 SWR from 1.8 to 54 Mhz – NO CI-V cables required – Tunes on SSB – Digital Display…no analog metering – Remotable… up to 400′!
N7TFP reviews the Palstar AT2K Antenna Tuner.
Video Rating: 5 / 5
SE 3 LED Dynamo,AM/FM Radio,w/Antenna,Tuner Dial,Black & Org
2-In-1 Dynamo Radio Includes: 3 LED Flashlight With 3 Functions, Am/Fm Radio. LED Brightness: 30,000 MCD. Dimensions: 6″ X 2-1/4″. Black & Orange Color. Plastic Body. Black Rubberized Grip on Sides of Body. Built-In Hand Crank Dynamo For Easy Recharging.
List Price: $ 31.52
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Terk CNP2000UCA XM DIRECT2 MAIN KIT INTERFACE ADPTR ANTENNA TUNER USB CABLE
List Price: $ 104.52
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A few nice Antenna tuner images I found:
Roller Inductor
Image by LostBob Photos
Continuously variable roller inductor. It’s a Barker & Williamson model 3852. 0 – 15 µH. used in Collins Radio Transmitters and Antenna Tuners. It needs a new home.
Roller Inductor
Image by LostBob Photos
Continuously variable roller inductor. It’s a Barker & Williamson model 3852. 0 – 15 µH. used in Collins Radio Transmitters and Antenna Tuners. It needs a new home.
HDTV and Home Theater Podcast – Podcast #504: New ways to watch TV
Boxee Box owners will soon be able to watch live television through the device using a special USB tuner dongle for free over-the-air HD TV signals. Boxee is taking us full circle, Boxee and an Antenna coule be all you need. The Boxee model is unique. …
Read more on HDTV Magazine
Humax HDR-7500T digital set-top box and PVR (500GB)
There are two digital tuners in the HDR-7500T that allow you to record up to two services at once, and this allowed us to record four shows at a time. If that sounds confusing, maybe it's because it sort of is. Each tuner can record two shows as long …
Read more on PC World Magazine
Magnum ATKW1 No Ground Antenna Tuner
- Reduces stress on transmitter, prolonging the life of your radio.
- Maximizes transmitted signal strength by reducing reflected power, resulting in longer range.
- Can be used with or without a linear amplifier.
- Will handle up to 1,000 watts peak power without signal degradation.
- Insertion loss of less than 1/4 watt.
Reduces stress on transmitter, prolonging the life of your radio. Maximizes transmitted signal strength by reducing reflected power, resulting in longer range. Can be used with or without a linear amplifier. Will handle up to 1,000 watts peak power without signal degradation. Insertion loss of less than 1/4 watt. Does not need additional ground wires. Compatible with any antenna system – single or dual antennas.
List Price: $ 44.99
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A few nice Antenna tuner images I found:
Attempt at a loading coil at the bottom of the mast
Image by Richard Corfield (M0RJC)
Adding inductance lowers the resonant frequency of the antenna – great! It also increases the Q or sharpness, so reducing the frequency range it can be tuned over – not so great. This worked quite well on 6m, but I had better luck on HF without the coil.
Kenwood TS-430 Amateur Radio Setup
Image by mrbill
Kenwood TS-430S amateur radio transceiver along with the AT-250 automatic antenna tuner (on the left) and PS-430 power supply (on the right). This equipment dates from the early to mid 1980s.
I got it for cost-of-shipping from a friend; having a minor problem fixed and a full tuneup done will cost me around 0 but I’m still out out less money than if I’d bought a new radio.
The L-network 238B antenna tuner, vs. T or Pi network tuners
Video Rating: 4 / 5
This is a big random wire antenna tuner for amateur radio.
Video Rating: 5 / 5
The DAIWA Model CNW-518 is rated @ 2.5 kW RF PEP output for the Ham Bands of 3.5 to 30 mHz. This antenna tuner has be modified to include some of the out of band frequency in the upper bands from 20 meters to 10 meters. This mode was probably made for MARS operation. This mode does not include 11 meters. This video clip shows tuning the tuner into a Cushcraft R5 vertical antenna (20 to 10 meters coverage) The RF is being supplied by an Yaesu FT-890 Transceiver.
Video Rating: 5 / 5
Here is a creation built by Dave – VO1TTU nearly 10years ago, and it works just as good today as the day the tuner was built.
Video Rating: 5 / 5
An apps-free portable TV
It's a personal digital TV with a 4.3-inch screen, built-in TV tuner, stereo speakers and rechargeable lithium battery. In consumer tests, it received an average of 34.25 channels, and the battery lasted 90 minutes. The little screen's high resolution …
Read more on Chicago Tribune
Mazda 2 GX tuner feels big, but drives small
There's also the extreme rear wing ($ 384.95) which was painted in a contrasting colour, side skirts ($ 475), 16-inch alloy wheels ($ 991.80) and a stub antenna ($ 22.53). Fog lights have also been added ($ 435.87). On the inside, the tuner adds a Pioneer …
Read more on Montreal Gazette
The world's leading magazine and events company for information technology in …
Building on the technology of the previous BB90 version, the MT-BB100 gathers locking information is from an internal tuner, the satellite modem and the AGC (automatic gain control) level. The antenna is constructed of carbon fibre and weighs less than …
Read more on Digital Ship
Video Review of a Palstar AT2K Antenna Tuner Tuner Details: Max Rated Power Handling – 2kW Designed for 160-6m Feature two variable capacitors and a roller inductor Relay controlled inductor for extra inductance on 160m Two coax outputs plus balanced line output and long wire output Various active power meter adjustments Check out the eHam reviews… www.eham.net
Video Rating: 4 / 5
Antenna tuners that were built by Dave – vo1dv
Video Rating: 5 / 5
HF Antenna Tuner for Amateur Radio Tranceivers – 300W 1.8-60Mhz – MFJ-945E
- Antenna Tuner for HF Tranceivers – Handles 300 Watts.
- SO-239 rear Inputs for the Antenna and the transceiver, 3 front manual controls for Tuning.
- 1.8-60Mhz ( 6 thru 160 Meters) frequency range. (Ham Radio, CB, HF)
- Cross-Needle Meter Shows SWR, Power Out & Reflected Power at the Same Time.
- Size = 8 x 2 x 6 inch , Meter Illuminates if Hooked up to Optional 12Vdc.
HF Radio Antenna Tuner matcher for HF frequencies between 1.8-60Mhz.
* Requires Optional Patch cable with PL-259 connectors for hookup to transceiver.
* Features Cross-needle SWR/Power meter ( 300W & 30W scales), meter illuminates if hooked up to 12Vdc.
* 300W max input. SO-239 input for antenna. With instructions.
List Price: $ 124.95
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Sherwood RX-4109 2 x 100 Watt RMS Stereo Receiver (Black)
- Phono Section preamp built-in
- Total Discrete Amplifier stage for all channels
- Switching for two pairs of speakers
- 5 audio inputs including tuner
- 17 3/8″ W x 5″ H x 13″ D
The Sherwood RX-4109 receiver is designed and built in-house with the same quality and attention to detail we have been bringing to our audio gear for the last 50 years.
List Price: $ 179.95
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A few nice Antenna tuner images I found:
Inductors and Capacitors
Image by ab9kt
I could make one heck of an antenna tuner!
Playstation-branded 3D TV comes 11/13
It is arguably the best value for anyone who's looking to move into the 3D revolution. The 24-inch 3D Display is not an actual TV; it has no built-in TV tuner. But since no one actually watches TV with an antenna anymore, it's kind of a moot point. …
Read more on TG Daily
The ARRL Guide to Antenna Tuners
Explore the design, construction and applications of the different types of antenna tuners.
List Price: $ 22.95
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The following is a straight-forward listing of the stages required to construct a shortwave antenna:
Get hold of a simple broom-handle. Altrnatively you can make use of a dowel rod or ready-made plastic tubing that is available from a plumbers or builders merchants The thickness of the of rod is not paramount and anything from about half an inch or better will function perfectly well Create a relatively large base to hold the rod vertically. The base should be heavy enough to keep the rod vertical at all times Get hold of an aluminium disk with a minimum 6 inch diameter. A disk of approximately 12 inches seems to be the optimum size. The disk will provide a capacity hat termination and will assist in reducing any noise pick up Source a quantity of no.16 PVC plastic covered standard wire. If this is not possible then an good alternative is no.16 or no.18 enamel covered copper wire. If this is not available then standard no.18 speaker wire will suffice With one end of the wire connected to the disk, begin winding a consistent coil around the rod. The coils should sit next to each other and be bound tightly to the rod. On completion of binding the rod you should then terminate the wire either by connecting it directly to your antenna tuner or by a proprietary wire connection terminator. Ensure that the wire extending from the base of the rod is as short as possible On completion you can protect your antenna by coating it in proprietary insulation tape or by giving it several coats of protective spray For optimum performance ensure the antenna is placed close to a window, in a garden or veranda. Ensure that the connection from the base is as short as possible You can use it your antenna without a dedicated tuner, however there will be a lack of enhanced core quality if the antenna is not attached to a receiver via a bespoke dedicated tuner Your new antenna is now geared up for use This simple wire-wound antenna will provide a great basis on which to trial your experience. Providing a ground link to both the antenna and tuner will optimise the system. A simple method of creating an artificial ground is to connect a minimum 5M strand of wire which you allow to fall on the floor of the room or garden
This atricle demonstartes what may be achieved with a straighforward home-made antenna, especially if you are limited in your space and budget
Provider of Two Way Radio Communications
The MFJ-941E is designed to match virtually any transmitter to antenna, including dipoles, inverted vees, verticals, mobile whips, beams, radom wires, and others fed by coax lines, balanced lines or a single wire. An eight-position antenna-selector switch provides versatile antenna selection. The MFJ-941D will handle up to 300 watts of transmitter RF output power. The MFJ-941 employs a cross-needle meter so forward power, reflected power and SWR may be read simultaneously. This tuner is in “MINT” condition. The tuner is very clean both inside and outside it’s cabinet. The cabinet has be taken down to bare metal and repainted with RUST-OLEUM “Hammered” finish. All of the position “dent” switches have been sprayed with DeoxIT D5. This spray is very popular and rejuvenates, lubricates and protects electronics. DeoxIT states more than a Contact Cleaner and chemically improves electronic connections. All of the tuner’s components have been tighten and re soldered (as to need) to restore as of just leaving the factory. The tuner shows no appearance of any burnt conditions from any type of arcing either RF output or lightning. The meter lamp can be powered by a 12 Vdc source. Use a 2.1 coaxial plug with the center conductor of the plug connected to the positive and the sleeve connected to ground. Please note: This cable and plug has been constructed and will come with the tuner. The Meter Lamp ON/OFF switch will activate the meter lamp. The MFJ-941E utilizes a cross-needle meter …
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Norcal Tuner Upper
Image by AA7JC
This is an SMT kit available from Norcal that allows you to tune up your antenna system before you connect your rig. This is a big plus since you dont waste hardly any battery power (meant for your rig) while in the field. I mounted it in what appears to be a soap container but it is actually something that held some cough drops or something.
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