“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
432 MHz world tropo record extended even further to 4,644 kms
” On Saturday the 28th of December 2019, Ian GM3SEK in the south-west of Scotland managed to work D41CV on 432 MHz to set a new world record fo... Read more
Icom Launch New IC-A220T 8.33kHz Air Band Panel Mount VHF Radio
The IC-A220T, Icom’s next generation 8.33kHz* air band panel mount transceiver, is now TSO / ETSO approved** and available for sale. The long awaited... Read more
The Ten Cent Modification You Can Do to Double Your Radio’s Range
by David Spero Some things in life you can never have too much of. But for this article, we’ll concentrate just on radio range/efficiency! There are... Read more
Hytera PD36X DMR Portable Review
Hytera PD36X DMR Portable Review by Tony Langdon VK3JED Read more
BCR-220 Repeater – 222-225 MHz – 30 Watts
ntroducing the ComLink™ BCR FM Repeater System by BridgeCom Systems, Inc. The BCR Repeater provides a feature rich, extremely reliable repeater/base s... Read more
Yaesu FT-3DR C4FM/FM Dual Band Transceiver
Yaesu FT-3DR Yaesu FT-3DR 5W C4FM/FM 144/430MHz Dual Band Digital Transceiver Reservation The new FT3DR provides reliable 5W RF power output in compac... Read more
Equipment
IC-705 QRP SDR Transceiver Update, Available in Japan around April 2020
IC-705 There has been massive interest around the world about the new IC-705 QRP SDR transceiver since a concept model was shown at the Tokyo Hamfair... Read more
ARS-USB AZIMUTH by EA4TX
Antenna Rotator System is the most popular and universal engine management antenna rotator. With this new generation that includes a USB port,... Read more
KAT500 High-Power Auto-Tuner & Smart Antenna Switch
The KAT500 is a high power autotuner that can be used with both the K3/KPA500 and all other HF amplifiers and transceivers. The KAT500 uses the same... 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
ES-4 Radio / Antenna Selector Switch between 3 radios and 5 antennas
ES-4 COMES AS A CONTROL UNIT AND A BASE (SWITCHING) UNIT THE BASE UNIT RECEIVES 12V POWER AND HAS ALL THE HEAVY COAXIAL CABLES CONNECTED TO IT. THER... Read more
SunSDR2 DX – New 100 Watt SDR This Fall!
Exiting news from Expert Electronics! The introduction of the brand new SunSDR2 DX being planned for this fall. At Hamradio Friedrichshafen this weeke... Read more
Review
Installing Your Ham Radio In Your Vehicle, Tips And Tricks For Mobile
“So I made a video showing a couple options that you can use for installing your ham radio in your vehicle. Every installation will be different... Read more
How Does An Inexpensive Transceiver Compare to An Expensive Transceiver
Jim, W6LG looks at http://www.sherweng.com/table.html website with extensive detail about receiver performance. Read more
Yaesu FT-891 HF/50MHz – Review
FT-891 HF+50Mhz ALL MODE MOBILE TRANSCEIVER The FT-891 HF All Mode Mobile Transceiver once again continues Yaesu‘s legacy for legendary receiver... Read more
ADALM PLUTO Frequency Expansion Modification Plus CPU Cores
“Here we take a look at the ADALM-PLUTO frequency expansion modification to give us 70 MHz through to 6GHz. Mine actually went as low as 46MHz!!... Read more
Ham Radio HF Stealth Dipoles ON-AIR Test and Review
Here is a video on some micro HF dipoles i found. Under 5 ounces, and multiple versions. They work exceptionally well, and will be in my go-kit video.... Read more
A close look at the MFJ-1708SDR T/R switch
“Want to use your SDR as a panadapter while you’re operating your transceiver? The MFJ-1708SDR lets you do that by connecting the SDR ante... Read more
Antenna
Hy-Gain AV-680 9 Band Vertical Update Video
Hy-Gain AV-680 9 Band Vertical Hy-Gain Multi-Band PATRIOT Vertical Antennas 9-band vertical covers 80/40/30/20/17/15/12/10/6 Meters • No radials • No... Read more
Dual-Band THUNDERBOLT® Vertical Antennas DXE-8040VA-1
Antenna, 80 & 40 meter Heavy Duty Vertical, 80m 40m Dual-Band, 5,000 W, 55 ft. Height, HD Pivoting Base, Kit DX Engineering 8040VA-1 Dual-Band THU... Read more
CCW HF Active Loop Antenna
HF Active Loop Antenna The Cross Country Wireless HF Active Loop Antenna is a compact receiving loop with a frequency range of 200 kHz to 70 MHz with... Read more
InnovAntennas ‘Big Gun’ arrays
InnovAntennas continue to supply the World’s top DX’ers with large antenna systems with over 55% of sales being into the USA and 10% into... Read more
![HF Loop Antennas – ARRL The Doctor is In [ PodCast ]](https://qrznow.com/wp-content/uploads/2017/02/11825222_887255654645435_1859337703964508434_n-190x122.jpg)
HF Loop Antennas – ARRL The Doctor is In [ PodCast ]
“HF Loop Antennas” is the topic of the just-released episode of the “ARRL The Doctor is In” podcast. Listen…and learn! Sponsored by DX Enginee... Read more
