“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
Retevis RT90 Mobile Dual Band DMR Mobile Radio Review – Part 1
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VHF Repeater Project (GB3XP) – ICQPODCAST
In this episode, Martin M1MRB / W9ICQ is joined by Ed Durrant DD5LP ,Martin Rothwell M0SGL, Chris Howard M0TCH and Andy Mace 2E0IBF to discuss the lat... Read more
BAOFENG UV-82 Dual Band Handheld Transceiver Radio Walkie Talkie
Description : BAOFENG UV-82 Dual Band Handheld Transceiver Radio Walkie Talkie The latest radio to come from Baofeng! This radio has upp... Read more
Alinco FM Mobile Monoband Transceivers DR-135TMKIII
Alinco FM Mobile Monoband Transceivers are the perfect choice for Amateur Radio operators. Whether you desire 10 meters, 6 meters, VHF, UHF or extende... Read more
OM Power OM3006 50MHz 6m 3kw Linear Amplifier
OM Power The linear amplifier OM3006 is designed for 50 MHz amateur bands from 50 till 52 MHz and all modes . It is equipped with a ceramictetr... Read more
Equipment
Maestro Control Console for the FLEX-6000
Maestro Control Console for the FLEX-6000 The FlexRadio Maestro™ is an intuitive, plug-and-play control console that directs operation o... 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-7300 – PRE-RELEASE INFORMATION
High quality real-time spectrum scope Now, a serious spectrum scope is NOT a “privilege” of high-grade models. The high-resolution real-ti... Read more
ADALM-PLUTO: A NEW $149 TX CAPABLE SDR WITH 325 – 3800 MHZ RANGE, 12-BIT ADC AND 20 MHZ BANDWIDTH
The easy to use ADALM-PLUTO active learning module (PlutoSDR) helps introduce electrical engineering students to the fundamentals of software-defined... Read more
K44 CW Keyer & Reader w/Keyboard I/F by K1EL
The K44 is the Swiss Army knife of CW keyers. A CW keyboard interface, CW reader, iambic paddle keyer, backlit LCD display, and optically isolated key... Read more
General3D Baofeng Handheld Radio Stand
“General 3D shared with me an ingenious solution. It’s a small plastic stand that he designed that custom fits the base of any Baofeng UV-5R bod... Read more
Review
Retevis RT3S Dual Band DMR Radio With GPS & Record + Programming
RT3S dual band digital radio uses Digital Mobile Radio (DMR) Tier 2 Standard protocol. It is compatible with the popular MOTO TRBO series Tier I and I... Read more
Customizing the Ailunce HD1
Ailunce HD1 Ailunce HD1 Dual Band DMR Digital DCDM TDMA Waterproof Two Way Radio Description: HD1 dual band digital radio uses Digital Mobile... Read more
First Look at the new Yaesu FTDX-101D – DXEngineering
Yaesu FTDX-101D Announced features for incredible Yaesu FTdx-101D include: * Elite-Level 160 to 6 Meters 100 Watt Transceiver * Superb and astonishing... Read more
Introduction to the IC-9700 VHF/UHF/1200 by ICOM VIDEOS
Direct Sampling Brought to the VHF/UHF World Icom strives to be first, to be innovative, and to continue to refine our radios for a balance of cutting... Read more
Retevis RT82 DMR Dual Band Handheld Radio – Review
Description RT82 is a dual band DMR radio Frequency band:136-174 & 400-480MHz 10000 Contacts IP67 Waterproof Use Time-Division Multiple-Acces... Read more
Field Testing The MFJ Octopus Antenna | Did It survive the wind?
“This time, I’m out in the field (way out in the Arizona desert) Field testing the MFJ Octopus antenna. So how does it hold up in 60 MPH w... Read more
Antenna
9+ BAND HEXTENNA™ FULL-SIZE HF+2M/220/440MHZ
HEXTENNA 9+ BAND HEXTENNA™FULL-SIZE HF+2M/220/440MHZ Pre-Orders will ship in December and are now being accepted. Price is exclusive for pre-orders on... Read more
The Antenna SA-680HP covers 10 through 80 meters
The SA-680HP covers 10 through 80 meters with supplied 6 foot whip. • Length retracted: 39” Extended:57” • 3 inch dia... Read more
The Buddipole
The Buddipole It’s a dipole… It’s a vertical… It fits in your travel bag! The Buddipole™ is more than an antenna, it’s a... Read more
144 MHz Halo Antenna
Construction and Analysis of a Low Cost Omnidirectional Horizontally Polarized Antenna for 144 MHz by Dr. Carol F. Milazzo, KP4MD (posted 23 May 2012)... Read more
Electromagnetics, the W8JK Antenna, and the ‘Wow!’ Signal
Electromagnetics, the W8JK Antenna, and the “Wow!” Signal Or, “My friend, the Ohio State Professor, Dr John Kraus, W8JK” Bob HoufK7ZB Antenna enthusia... Read more
InnovAntennas XR7 & XR7C
InnovAntennas After the success of the XR6, InnovAntennas announce today the release of the new XR7 models. The XR7 is based on the XR6 model which co... Read more
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