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B08TX33MX5 Price: $26.99 Score: 1000.000 Category: Electronics Rating: 3.7 Votes: 18 Find similar products HAM 1-30 Mhz Manual Antenna Tuner for HAM HF Radio QRP DIY Kits, Good Helper for Antenna Erection. Specifications: Days when exposed to tune straight power: <20W Days when adjusting the input power tuning: <3W Tuning indication: LED display Interface: Q9 type Operating frequency: 1-30MHz Antenna Interface: Q9 type The antenna impedance matching range: about: 30 - 300 ohms Carrying RF power: less than 15W Tuning required RF power: less than 3W Box size: Approx. 10cm x 6.8 x 5.0cm Package weight: 210g Descriptions : 1. This is a set of DIY parts for QRP manual tuning. You need to have a certain foundation of electronic technology, understand related components, and be familiar with welding, assembly and debugging. Please read the kit instructions carefully before assembling. 2. The built-in circuit board is a standing wave indicator circuit, which is convenient for welding, simple process and not easy to make mistakes. It is the standard configuration of each version. 3. This tuning can add proper inductance or capacitance to the original non-resonant antenna to make the radio work normally. 4. It can modify the original resonant antenna, but due to external influences, the SWR of the antenna that has changed. 5. It can be used as a band-pass filter to reduce unnecessary out-of-band radiation when transmitting, and to reduce out-of-band cross-modulation and interference when receiving. Package : 1-30 Mhz Manual Antenna Tuner kitsThis kit is not a ready product but need welding and install by yourself. August Update - Products come with instructions.	B08GPFB6W7 Availability: Currently unavailable Score: 7.407 Category: Electronics Rating: 3.3 Votes: 12 Find similar products DIY Kits 1.8-50MHz ATU-100 Mini Automatic Antenna Tuner by N7DDC 7x7 + 0.96 Inch OLED Firmware Programmed. .
B099ZLVV3V Price: $93.6 Score: 6.250 Category: Electronics Rating: 4.4 Votes: 74 Find similar products Malahit ATU-100 Antenna Tuner 1.8-50MHz atu100 by N7DDC 7x7 0.96 Inch OLED 3.2 Firmware Programmed with Housing Assembled Machine with USB Cable（No Battery）. .	B09HGVM791 Availability: Currently unavailable Score: 6.061 Category: Electronics Rating: 3.5 Votes: 20 Find similar products Malahit ATU-100 EXT 1.8-50MHz Automatic Antenna Tuner by N7DDC 7x7 Open Source Shortwave Antenna Tuner 3.2 Firmware Machine with Shell SMA to UHF/BNC. .
B0104N76RM Availability: Currently unavailable Score: 5.952 Category: Electronics Rating: 4.2 Votes: 203 Find similar products Tecsun AN-05 External Antenna for Tecsun Radios to Improve FM/SW Performance. 【How to use AN05 External Antenna? 】 (Suitable for external use when the indoor signal is poorly listen) 1. Fix the AN-05 External Antenna outdoors. (It is strictly prohibited to use it during thunderstorms.) 2. Pull out the cord in the box. 3. Use the clip to the rod of the radio to use it. 4. Applicable models: All kinds of radios with whip antennas. (For FM and short wave (SW) bands). 【Attention】 1. The cord is about 6m long, pay attention to the distance when using it. 2. Thunderstorm weather needs to recover AN-05 to prevent lightning strikes. 3. Shortwave knowledge: Many people who have just started listening to shortwave that greatly reduced in interest by the noise from radio, and gave up listening to shortwave, which is a pity. Indeed, the sound quality of shortwave isn't comparable to the sound quality of FM high-definition broadcasts, but is basically very close to that of medium-wave sound quality. However, since listening to shortwave is affected by many factors, it tends to be worse than the medium wave. In fact, if the factors are favorable, the sound quality of the shortwave can be compared with the sound quality of the medium wave broadcast. When listening to shortwaves, what are the important factors that must be considered: 1. Elements of the ionosphere 2. Short-wave listening effect is different indoors and outdoors 3. Set up shortwave outdoor antenna 4. Improve the effect and sound quality of listening to shortwaves 【Q&A】 Q1: Is the AN05 antenna suitable for my shortwave radio? A1: Suitable for all Kinds of Shortwave Radios like TECSUN, Radiwow, XHDATA radio that with whip antennas. Q2: The difference between AN03 antenna and AN05 antenna? A2: AN03 antennas are suitable for shortwave radios with antenna jacks, AN05 antennas are suitable for all Kinds of shortwave Radio.	B000X39SR0 Price: $96.94 Score: 5.917 Category: Electronics Rating: 4.5 Votes: 132 Find similar products FireStik FG3648-B Three foot No-ground plane CB antenna kit (Black). PURPOSE: The FGX-648 (where X = antenna length in feet) series, 'No ground plane (NGP) CB antenna kits were specifically designed to solve the problems associated with the lack of ground plane. This normally occurs on vehicles constructed of plastic, fiberglass, wood or aluminum. Ground plane problems typically show up in the form of high standing wave ratio (SWR) and poor performance. The isolated ground plane that is built into the FGX-648 series kits can also eliminate problems on metal base vehicles that lack the sufficient ground plane for proper operation. COMPONENT INFORMATION: ANTENNA: The antennas used in these kits is altered in order to maintain a desirable center band position when used with the tuned coaxial feedline. Accordingly, these antennas may only be used with the Firestik NGP cable. The antenna used in these kits have our patented no tools required tunable tip for fast and easy SWR adjustments. The rated wattage for these kits is 100 watts. COAXIAL FEEDLINE: The seventeen-foot (5.2 M) coaxial cable used in these kits is of the highest quality. We use a multi-wire stranded center conductor to the prevent breakage that can occur with solid center conductor cable. The coaxial feedline serves as a tuned circuit that creates the necessary counterpoise. If a longer cable length is required, the user may add standard RG-58 A/U cable between the radio and system cable, preferably in lengths that are multiples of nine feet. Because it is a tuned circuit, the length cannot be reduced without causing non-repairable damage. MOUNT, SPRING AND HARDWARE: To compliment the quality of the antenna and feedline, the mount used in these kits is our stainless steel, 3-way 90° angle mount. A stainless steel spring with machined brass ends acts as the coupling between the antenna and the feedline. ADDITIONAL FEATURES: Each kit includes a FREE microphone hanger.
B0B1PMHNHS Price: $23.99 Score: 5.814 Category: Electronics Rating: 4.1 Votes: 14 Find similar products Radio Balun Antennas 1-30Mhz Shortwave Radio HAM Equipment NXO-100 Magnetic Balance Kit DIY. Toroid model: NXO-100. Toroid material: nickel zinc ferrite. Toroid Magnetic conductivity: 100. Toroid Overall dimensions: outer diameter 31 mm * height 7 mm * diameter 18 mm.. Center frequency: 15 MHZ ； Application frequency: 1-30 MHZ； Waterproof Case Size: 65mm * 60mm * 35mm； This kit uses a low-permeability nickel zinc NXO-100 high-frequency magnetic, high-quality wire, waterproof box package, stainless steel bolts, Q9 seat. It production 1:1, 4:1, 9:1 the package using the the large size NXO-100 magnetic ring and 1 mm in diameter enameled wire. It can work in the 1-30MHz shortwave, can withstand high power of 100W-200W, such as magnetic Barron's ideal kit. Types of antennas: 1: 1, 1: 4, 1: 9 three production program antenna optional, 1: 1 and 1: 9 is three enameled hinge, 1: 4 is two enameled wire. 1: 9 balun suitable long-term antenna , with manual or automatic antenna tuner tune-day use. 1: 4 balun applicable LOOP antenna to antenna and Winton (200-400Ω). 1: 1 balun antenna suitable for bipolar DP (inverted V n V), such as Yagi antenna (40-100Ω). Kits include 1.5m wire, please fold to 3 fold, each fold 0.5m. 1: 1 winding method: three-wire twisted around 7 laps, stranding extent (about 3-4 times per centimeter)； 1: 4 Winding method: two-wire twisted around 8 laps, stranding extent (about 3-4 times per centimeter)； 1: 9 Winding method: three-wire twisted around 10 laps, stranding extent (about 3-4 times per centimeter)； NOTE: It is bulk package, not a finished product, it need to DIY. Pack: 1x radio balun kit.	B0190E06HS Availability: Currently unavailable Score: 5.682 Category: Electronics Rating: 1 Votes: 1 Find similar products Super Antenna MP1B All Band Ham Radio HF Portable MP1 Antenna with SWR Ruler. .
B00FNITQRW Price: $264.99 Score: 5.618 Category: Electronics Rating: 4.3 Votes: 24 Find similar products MFJ MFJ-1026 Noise canceller, 1.5-30MHz. MFJ Noise Canceling Signal Enhancers are designed to reduce noise or interference, or improve desired signals, before the noise affects sensitive receiver circuits. Unlike conventional noise blankers, these units can be effective on all types of noise (QRN), as well as on interference (QRM) from unwanted signals. From the Broadcast Band to low VHF, these Noise Canceling Signal Enhancers work on all signal modes and can transform difficult receiving situations so you can finally hear, work, and log that rare DX! MFJ Noise Canceling Signal Enhancers allow the user to adjust both phase and amplitude while combining antenna inputs. One of two antenna inputs may be connected to the transmit antenna, and the other to an external receive antenna or the internal whip antenna on the model MFJ-1026. Or both inputs may be used with identical receive antennas to create various directional patterns for optimum results. The signal output to the receiver or transceiver is the vector addition or subtraction of signals from two separate antennas, balanced and phased. This allows unwanted noise to be removed or desired signals to be enhanced. Some other phasing systems provide either a limited phase adjustment range or change the signal's level as phase is adjusted. These MFJ units feature exceptional phase amplitude flatness making adjustments easy. Null out interfering signals or peak desired signals with the adjustment of a few controls, and pull in that station you want to hear! MFJ Noise Canceling Signal Enhancers are optimized over the range of 1.8 to 30 MHz and contain the interface circuitry necessary for operation with most modern HF transceivers. Although these signal enhancers contain internal RF sensing for T/R (transmit-receive) switching, we strongly recommend the use of the external T/R control connector on the rear panel for keying. These units run on 12 Vdc or 110 Vac with an optional adapter, sold separately.	B077TXL6VQ Availability: Currently unavailable Score: 5.525 Category: Electronics Rating: 4.1 Votes: 5 Find similar products Anteenna TW-7500 Ham Mobile Antenna with UHF Male Connector 144/440MHz VHF/UHF 2m/70cm Max Powr 150W 1 PC Free White Color of Adaptor Connector NMO to UHF Female (SO-239). TW-7500:Ham Mobile Antenna For Ham Mobile Transceiver Frequency: 144/440MHz ( VHF/UHF 2m/70cm ) * The Length of Antenna:1065mm Gain :3.5 dB (144MHz) / 6.0dB(440MHz) Max Power:150W V.S.W.R:Less Than 1.5 Antenna Connector:UHF Male ( PL-259; M Male) *1 PC Free White Color Of Adaptor Connector NMO To UHF Female (SO-239 ).