“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
Alinco DR-B185HT 85 Watt 2 Meter Transceivers
Alinco DR-B185HT 85 Watt 2 Meter Transceivers are their highest power 144 MHz VHF mobile. DR-B185HT transceivers deliver high-power and superior perfo... Read more
MOTOTRBO XPR 7000 Series
The MOTOTRBO XPR 7000 Series is a communications powerhouse for demanding users. Offering a full set of features and rich functionality in one... Read more
IARU Region 1 announce a new edition (8.00) of the VHF Handbook
The new version of the VHF handbook is available in the “Resources” section of the website and can be accessed at IARU Region 1 VHF Manage... Read more
2017 BaoFeng DMR Upgraded Version! BaoFeng DM-5R PLUS Dual Band DMR Digital Radio 2000mAH
BaoFeng DM-5R PLUS Transceiver Compatible with Motorola VHF/UHF 136-174/400-480Mhz 2000mAH High Capacity Battery High Power/Low power Repeater Mode Ti... Read more
Motorola APX™ 8000
With 4 RF bands and multi-mode system access, the APX 8000 knows no limits when it comes to interoperability. Whether it’s loud or windy, wheth... Read more
Two Repeaters One Antenna Feed Line
“We had an opportunity recently to provide a unique duplexer system. The customer needed a single antenna feed line for two repeaters. This solu... Read more
Equipment
ACOM ATU04AT- REMOTE AUTOMATIC ANTENNA TUNER AND SWITCH
Remote matching of antennas – less losses in the feed line. Designed for installation in a shack, under a shed, or in open (see mounting kit opt... Read more
CW TOUCH PADDLES
Product Features and use: · Electronic keyer paddles using electrostatic touch paddle technology · Because there are no moving par... Read more
A Prototype Foot Switch for the Future by JH5GHM
Judging from CQ-Contest reflector discussions, many contesters do not seem to appreciate the importance of a foot switch in a contest environment. For... Read more
ANAN-200D HF + 6M 100W ALL MODE SDR TRANSCEIVER
SDR TRANSCEIVER The ANAN-200D is The most powerful Amateur Radio Transceiver available today, it builds on the very successful OpenHPSDR Hermes and t... Read more
New UT-133A Bluetooth Unit for Icom Mobile Radios
The current Icom UT-133 Bluetooth unit is being replaced with a new version that is compatible with not only the ID-5100E and IC-2730E Amateur Radio m... Read more
Alinco DM-30 Digital Power Supplies
Alinco DM-30 Digital Power Supplies are an affordable switching power supply that packs a lot of features including Anderson Powerpole® connectors. Th... Read more
Review
![TERMN-8R Radio: Third Party Review and Walkthrough [ Video ] – Anytone](http://qrznow.com/wp-content/uploads/2015/03/51StQw466JL-190x122.jpg)
TERMN-8R Radio: Third Party Review and Walkthrough [ Video ] – Anytone
Anytone TERMN-8R Radio: Third Party Review and Walkthrough Read more
Learning The HF Bands: 10 meters/28mhz, An Introduction to HF
“This is where you start. Video #1. I have done a quick video on each one of the HF bands to educate the newcomer to the hobby or for anyone who... Read more
First Impressions Of Kenwood TH D74 by K6UDA
Kenwood TH D74 Read more
Review of Chameleon P-Loop Magnetic Antenna
CHA P-LOOP 2.07.0-29.7 MHz The CHA P-LOOP 2.0 was designed with portability, ease of use simplicity, ruggedness and high performance in mind. U... Read more
Testing the NEW GD-55+ for DMR
Advanced GPS function for emergency communication 10W High Power IP-67 Waterproofed Call Recording Emergency Alert (“Man Down” Alarm) 2800mAh Lithium... Read more
Antenna
Skew Planar Wheel Antenna for 435MHz
Antenna for 435MHz Skew-Planar antenna has had little attention in the amateur radio community despite being present in QST by Robert H.... Read more
Portable 2 element 6m beam
Over the years we have been asked numerous times for a really lightweight portable 6m beam. Building on over a decade of experience making and marketi... Read more
How to make a 4:1 balun cheap and easy
How to make a 4 to 1 balun cheap and easy Read more
New InnovAntennas Quads
NEW FOR 2018! Following on from our successful LFA-Q compact quads, we are adding a more traditional looking quad to our range which boasts two of the... Read more
Sea Water Antenna
The US Navy has created a device which turns a jet of sea water into an impromptu liquid antenna, creating a powerful, high frequency broadcast... Read more