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 B06XCF9PPJ Price: $59.99 Score: 1000.000 Category: Electronics Rating: 4.3 Votes: 99 Find similar productsSURECOM SF401 Plus Frequency Counter for Radio Transceiver CTCCSS/DCS Decoder. Powerful signal strength indicator to measure walkie talkies' continuous carrier signal frequency for wireless enthusiasts Features: * CTCSS/DCS Decoder * LCD Dim level setting * Frequency digital 0.000 or 0.0000 * Work by TCXO(Temperature Compensate X'tal (crystal) Oscillator) 2～2.5ppm * Color Display 240x320 * Build-in Li-ion battery * Only four-button control means easy to use * Small size allows hand holding. * Auto power off 1-9minutes * Charging battery LED indicator Package Contents: 1x SF401 PLUS Frequency Counter 1x UHF Antenna 1x English User Manual 1x USB charger cable 1x USB AC adapter 100-240V Note: Steps of If Frequency Counter Cannot Check VHF Frequency 1) Swtich the ATT button into left hand side. 2) Then change the antenna into VHF or Dual band, as customer are using UHF antenna, but checking VHF band. |  B001N51P8W Availability: Currently unavailable Score: 5.464 Category: Electronics Rating: 4.7 Votes: 4 Find similar productsTrimax SM2200 Digital Satellite Finder Meter. For the first time in a economical digital meter, you are able to view the actual channel on the screen of the meter. Now you can quickly and accurately align the satellite AND you can instantly check the stability of the channel right on the screen of the meter. Transponders, Frequency, Symbol Rate, Polarity, and other settings can be modified by the user. There is never a need to send your meter in for a upgrade. Menu Languages: English, Deutsch (German), Russky (Russian), Turkce (Turkish), French, Cesky (Czech), Portuguese, Slovencina (Slovak), Polski (Polish), Espanol (Spanish), Italian Meter never needs to be returned for re-calibration due to the unique calibration system built in to the meter. Each time the meter boots up it automatically calibrates for optimum performance so you can align each install with confidence. |
 B08YWHPQM7 Price: $180.7 Score: 5.376 Category: Electronics Rating: 5 Votes: 1 Find similar productsciciglow Digital SWR/Watt Meter,DG-503 Digital LCD 3.5 SWR/Watt Meter 1.6-60MHz/125-525MHz SWR Meter for Two-Way Radios Professional Meter Tool for Radios. . |  B07YM19YBS Price: $449.95 Score: 5.348 Category: Electronics Rating: 4 Votes: 10 Find similar productsSMD Audio Multi Meter/Hand Held Amplifier Dyno - Real time wattage tester. SMD AMM-1 Steve Meade Designs Impedance / Dyno / Wattage Audio Multimeter The Audio Multimeter and Handheld Dyno Measure true amplifier power! Measure impedance of speaker boxes. Measure voltage drops, and much more! This listing includes: AMM-1 tool Protective silicon rubber boot Harness This manual. |
 B08TX33MX5 Price: $26.99 Score: 5.181 Category: Electronics Rating: 3.7 Votes: 18 Find similar productsHAM 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. |  B07X3Z8YTD Price: $12.49 Score: 5.155 Category: Electronics Rating: 4.5 Votes: 62 Find similar productsHiLetgo Digital FM Transmitter Module FM Transmitter Stereo Frequency Modulation DSP PLL 76.0-108.0MHz Multi-Function Frequency Modulation with LCD Display. Specifications: Output Power: 100mW Modulation Mode: standard FM Equivalent Noise: >=30dB Power Supply Voltage: DC 3.0V-5.0V Operating Current: 35mA Adaptive Antenna: 75cm bar antenna Audio Frequency Response Range: 50Hz-18 KHz Transmission Frequency: 76.0MHz to 108.0MHz (Campus broadcast: 76.0MHz-87.0MHz) Frequency Adjustment Stepping: 0.1MHz/times (short press the key); 1.0MHz/times (long press the key) Sound Track: LINE/USB channel (stereo); MIC channel (single channel) Settings: 1. Setting of backlight LED mode When the power is off, press the “FRE-” and “FRE+” button at the same time to start up. B1 indicates always bright. B0 indicates that the backlight is closed for 20 seconds, and the reset setting takes effect. (the factory defaults to 20 seconds of backlight delay). 2. Start/close the campus radio frequency band Press VOL+ and VOL- key at the same time, and then connect the power supply. LCD displays C1, which means to start the campus broadcast(76-87mhz). C0 means closing the campus radio frequency band. Take effect after restart. (the factory defaults to close the campus radio frequency band). 3. Settings of stereo/mono transmission mode The back of the module has two solder joints M,G. Short connecting is the monophonic launch. Disconnecting these two points is the stereo system launch. (the factory defaults to stereo system launch). Note: the stereo system must satisfy the input to the module's audio source is stereo and the radio is also stereo to achieve the stereo effect. When using a single speaker (monophonic) radio or input to the module's audio signal as mono, there is no stereo. Package Includes: 1 * Digital FM Transmitter Module. |
 B00S555EJE Price: $149.99 Score: 5.155 Category: Electronics Rating: 3.7 Votes: 47 Find similar productsMFJ-815D MFJ-815 Original MFJ Enterprises HF + 6M Peak Reading SWR/Wattmeter. MFJ-815D reads true-peak or average power on a large illuminated three-inch Cross-Needle Meter. Its TrueActive peak reading circuit gives you an incredibly accurate SWR and power reading in SSB and CWover a wide frequency range. The Cross-Needle Meter reads SWR and true peak average, forward and reflected power simultaneously -- all in a single glance. You get Frequency coverage from 1.8 to 60 MHz. Has mechanical adjustment for accurately zeroing the meter. Push button selects range, meter lamp on/off and peak for SSB or average for CW operation. SO-239 Connectors. MFJ-815D has 3000 and 300 Watts forward and 600/60 Watts reflected power ranges. Read SWR from 1:1 to 8:1. LED Meter lamp uses 12 VDC or 110 VAC with optional MFJ-1312D TrueActive Peak Reading Circuit can use 9 Volt battery. |  B08CXNR569 Availability: Currently unavailable Score: 5.102 Category: Electronics Rating: 4.8 Votes: 20 Find similar productsIcom IC-705 HF/VHF/UHF All Mode Portable QRP 5W/10W Transceiver. . |
 B005A6XRKE Availability: Currently unavailable Score: 5.051 Category: Electronics Rating: 4 Votes: 10 Find similar productsYaesu FT-250R VHF Amateur 2M Transceiver With Desktop Quick Charger. working perfectly. |  B07Z7TPTS3 Availability: Currently unavailable Score: 5.025 Category: Electronics Rating: 3.6 Votes: 68 Find similar productsHYS HF Transceiver 3-30Mhz HF Power Amp for 3-30Mhz Handheld Radio with a Mini Fan. This model can be amplify for HF radio. 1.Turn on/off switch 2.Auto receive/transmit switch 3.Electrode reversal protect Specifications Frequency range:HF Operate voltage:12-14 Vcc Input current/POWER:14-20 A Input power:3-5 W Input power SSB:2-10 W FM Output power:PEP Max 150 W(Input 10W)(Note: Note:Normal the output power is 70-100W) AM Output power:PEP Max 150 W(Input 10W) (Note:Normal the output power is 70-100W) Output power SSB:300 W(Input 10W) PEP Max 250W (Input 5W ) PEP Max(Note:Normal the output power is 120-250w) Working mode:FM- AM-CW-SSB Note:if you will test the max PE power to FM/AM 150W or SSB 300w,you can try use input 10w from FM/AM /SSB radio but please don’t use too long time, the operate will cause damage to power transistor, more serious will cause the Amp to burn out. Blown fuse:2x12 A Dimension:109x225x35 mm Net weight:750 g. Product Description Compact high power all mode Amp with automatic TX/Rx switch and On/Off switch. Electronic switch. Inversion polarity protection.It will decrease the amp' life time and also if the antenna can not endure the output watt, which will damage the amp. Packing Incudes:1*TC-300N Amp. |