“Microphones” is the topic for the latest (April 12) episode of the “ARRL The Doctor is In” podcast. Listen…and learn!
Sponsored by DX Engineering, “ARRL The Doctor is In” is an informative discussion of all things technical. Listen on your computer, tablet, or smartphone — whenever and wherever you like!
Every 2 weeks, your host, QST Editor-in-Chief Steve Ford, WB8IMY, and the Doctor himself, Joel Hallas, W1ZR, will discuss a broad range of technical topics. You can also e-mail your questions to doctor@arrl.org, and the Doctor may answer them in a future podcast.
Enjoy “ARRL The Doctor is In” on Apple iTunes, or by using your iPhone or iPad podcast app (just search for “ARRL The Doctor is In”). You can also listen online at Blubrry, or at Stitcher (free registration required, or browse the site as a guest) and through the free Stitcher app for iOS, Kindle, or Android devices. If you’ve never listened to a podcast before, download our beginner’s guide.
VHF
QUANSHENG TG-42AT VHF 136-174Mhz
TG42ATQUANSHENG TG42AT VHF 136-174Mhz Key Specifications/Special Features: Frequency: VHF:136-174Mhz Li-ion Battery :7.4V 1500mA 99 channels Supports... Read more
Yaesu FT-4XR FM DUAL BAND TRANSCEIVER
Yaesu FT-4XR FM DUAL BAND TRANSCEIVER Range: 136-174, 400-480MHz Antenna Connector: SMA Power Source: 12.6 VDC Nominal, Battery Operated Exclusively F... Read more
Yaesu DR-2XE Repeater – C4FM/FM VHF/UHF Digital
Yaesu DR-2XE Repeater – Modulation Modes: Conventional FM, C4FM Digital – Automatic Mode Select (FM/C4FM) – 3.5″ Full Color T... Read more
Icom A220 VHF Air Band Transceiver
Icom A220 – Air to Ground Panel Mount Transceiver Icom’s A220 panel mount transceiver is a popular fit with experimental and light sport pilot... Read more
Icom ID-880H
Icom ID-880H Switchable VHF/UHF dual band The ID-880H provides VHF/UHF dual band capabilities (one band at a time) via a simple band switching system.... Read more
BEKO HLV-950 – 950 Watts 50 MHz – Solid State Amp
*Photo by KG4AKV Jhon Brier Hamvention 2016 Ohio Designed for Weak Signal, Tropo Scatter, Meteor Scatter, Digital, & Contest Operation! The BEKO... Read more
Equipment
LP-500 Digital Station Monitor
General (exclusive features in red) * Bright, High Resolution 5″ Color TFT Display * 32-bit Main Processor * Graphics and Audio coprocess... Read more
Expert Amps 1.3K-FA – 1.3 KW Solid State Fully Automatic Linear Amplifier
1.3 KW Solid State Fully Automatic Linear Amplifier RF SOLUTIONS is the authorised dealer for Australia/New Zealand Power: up to 1.5 KW (1.3KW typ.).... Read more
Icom IC 718 – HF Transceiver
Icom IC 718 – HF Transceiver THE ORIGIN OF THE HF TRANSCEIVER Simple operation The IC-718 is equipped with a minimum number of buttons and cont... Read more
Xiegu X108G
X108G Outdoor is X108’s upgraded version, It is a compact single conversion HF transceiver covering 0.5 to 30 MHz. Special optimized the Receive Chann... Read more
Ten- Tec 507 Patriot – Open Source Arduino-based SSB/CW QRP Transceiver
The 507 Patriot utilizes a chipKIT Uno32 prototyping board which give users access to an Arduino-based programming environment. With its 32-bit... Read more
Little Boy — An LDMOS HF Amplifier
Little Boy — AN LDMOS HF Amplifier by W6KANI recently watched the movie Fat Man and Little Boy, a 1989 great movie about the Manhattan project a... Read more
Review
LD-5 HF Ham Radio QRP Transceiver – Tech Review
The LD-5, made in USA, by LNR Precision Inc. is an amazing little 5 band SSB/CW Amateur Radio QRP Transceiver that’s small and light enough to... Read more
All WX Solar Powered Amateur Radio Field Station Update 01
“Hello Operators. I’ve received so many questions about the solar powered Field Station, I thought It would be a good time to publish an u... Read more
Mountain Topper Radio review by G0POT
A review of the LNR Precision version of the MTR, Mountain Topper Radio a three band, CW only, QRP trail friendly transceiver. Mountain Topper Tri-Ban... Read more
Unboxing the MFJ-998 – 1500 Watts automatic antenna tuner
Full 1500 watts SSB/CW…Digital & Analog SWR/WattMeter . . . All features of MFJ IntelliTuners– Ultra-fast, Safe Automatic Tuning . . . Wide... Read more
“Generators” is the topic of the new (June 22) episode of the “ARRL The Doctor is In” podcast.
“Generators” is the topic of the new (June 22) episode of the “ARRL The Doctor is In” podcast. Listen…and learn! Sponsored by DX Engineering, “A... Read more
Antenna
Antenna Rotator System ARS-USB Azimuth
Antenna Rotator System is the most popular and universal engine management antenna rotator. With this new generation that includes a USB port,... Read more
Log Periodic Dipole Array 13 element 10MHz – 54MHz High Performance LPD
A Super Wide Band, High Performance Log Periodic Dipole Array – 10MHz to 54MHz inclusive All InnovAntennas LPDA’s are design using the very late... Read more
DX Engineering Skylark Dual-Band Yagi Antenna DXE-2X7
Antenna, Beam, Skylark, Duoband Yagi, 17 and 12 meters, 90 mph Wind Rating, 16 ft. Boom Length, Each HF Beam Antenna Type:Yagi HF Beam Antenn... Read more
7el LFA2 Noise comparison on 50 MHz
VA3NCD had the luxury of being able to install 2 50MHz 7el Yagis for testing one against the other. One an M2 7el JHV, the other... Read more
Three-band portable dipole antenna system
Product Description Band Hopper 3 Multiband Portable HF Dipole Antenna System NEW FOR 2015 – add a high performance balun for just £4.95! At a g... Read more
New Videos ! MFJ-226 – 1-230 MHZ ANTENNA EXPECT TIMES GRAPHIC ANALYZER
MFJ-226 Videos: MFJ VNA Antenna Analyzer covers 1 to 230 MHz, 1Hz resolution.•Frequency sweep plots: SWR, Impedance, Resis... Read more