“Automatic Gain Control” is the topic of the latest (February 1) episode of the “ARRL The Doctor is In” podcast. Listen…and learn! More than a half-million downloads since its debut in April 2016 attest to the podcast’s popularity.
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.
Equipment
Icom IC-R9500 ( 0.005–3335MHz )
Wideband coverage The Icom IC-R9500 covers 0.005–3335MHz*1 in SSB, AM, FM, WFM, CW, FSK and P25*2modes. It is suitable for a wide variety of radio mon... Read more
Anytone AT-6666 All-Mode 10 Meter Mobile
Anytone AT-6666 All-Mode 10 Meter Mobile 60 watts SSB – 360 Memories CTCSS / DCS Option Included Programming Cable Included General Speci... Read more
INRAD DMS-650 Desk Microphone
The INRAD DMS-629 and DMS-650 microphones have been chosen by FlexRadio as the official desk microphones for use with all of our transceivers. M629 o... Read more
KP-1 Power Meter – KOHJINSHA – 5KW
KP-1 is a SWR and Power meter employing current transformer covereing the frequency range of 1.8MHz through 30MHz. ■ A large scale analogue cross mete... Read more
Review
DIY Remote Radio Now – Win the April 2017 QST Cover Plaque Award
WB2REM and K5PA Win the April 2017 QST Cover Plaque Award The winning article for the April 2017 QST Cover Plaque award is “DIY Remote Radio Now” by... Read more
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“ Volt-Ohm Meters ” – The Doctor Will See You Now! [ ARRL Podcast ]
Volt-Ohm Meters These meters have been around for decades and remain one of most useful pieces of test equipment you can own. “Volt-Ohm Meters” is the... Read more
Why You Should (and shouldn’t) Upgrade Your Amateur Radio License – Ham Radio Q&A
“Congratulations! You just earned your FCC Technician amateur radio license. I bet when you took the test, one of the examiners asked if you wis... Read more
Yaesu FT-450D : Getting Started and Overview
Yaesu FT-450D Read more
Yaesu FT-70DR ” Full Review “
FT-70DR is a compact and very attractively priced YAESU System Fusion transceiver providing both conventional analog FM operation and the advanc... Read more
Antenna
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
Inac AH-1430 (20, 17, 15, 12, 10 m band) – Antenna
AH-521, is a halo antenna of small size but high performance. Supports an RF level between 140 and 210 W. Covers bands used between 12 and 30 M... Read more
SteppIR UrbanBeam Yagi antenna
“We’re champions of the little pistol,” says Mike Mertel, YASME Excellence Award winner and SteppIR Antennas President, as SteppIR Antennas announces... Read more
All-Band 80-10 Meter End-Fed Half-wave Antennas – MFJ 1982,1984
Cover all HF bands with one single wire and no tuner! to ensure great performance in a wide range of operating conditions. End-fed horizontal wire, an... Read more
Comet mobile antenna of 430MHz band – ASF-430
Comet is the 19th Kansai first exhibition was of the amateur radio festival venue, fin-type mobile antenna · ASF-430 of 430MHz band. Adopted wa... Read more
Review
Heil Sound of Bob Heil explaining the Parametric Audio Systems (PRAS)
The Heil Sound Parametric Receive Audio System (PRAS) is a state-of-the-art audio system that enhances the internal audio systems of amateur radio, sh... Read more
Kenwood THK20A Transceiver – ARRL Video Review
A powerful communications tool in every sense, KENWOOD’s new TH-K20A/K40A radio offers 5.5 watts of RF output to ensure reliable performance. Numerous... Read more
Debut of the Hytera AR482G DMR HT : Ham Radio 2.0: Episode 14
This is a new DMR HT from Hytera made for the Amateur Radio Community. In this episode I will show the menu of the radio and the CPS software, and key... Read more
RTL-SDR VS SDRPlay
A Comparison between the rtl-sdr and sdrplay across different frequencies and settings. Measuring the signal to noise ratio and graphing results.... Read more
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Baofeng Radioddity UV-5RX3 [ PART1 ]
UV-5RX3 Baofeng Radioddity Radioddity has partnered with Baofeng to create the model UV-5RX3 ham radio handheld, covering the 2-meter (144-148 MHz), 1... Read more
Digital Modes
EURAO Party – Autumn 2014: be digital, explore 30m
The European Radio Amateurs’ Organization, together with the 30 Meter Digital Group , announce a new party on the air, this time with the... Read more
Release: WSJT-X Version 1.9.0-rc4
Changes from WSJT-X Version 1.9.0-rc3 include the following: – Corrected a number of flaws in Fox and Hound behavior, FT8 DXpedition Mode... Read more
A New FT8 with Rag Chew Abilities ( FT8CALL )
FT8 has taken over the airwaves as the digital communication mode for making QSOs over HF/VHF/UHF. The mode has been widely popular as the latest offe... Read more
HF Signal Propagation PSK Reporter , PSK/JT65/FT-8/CW/JT9
PSK Reporter Where is your signal being heard? Is your antenna working? What is the status of the band? Check out this video to learn about the PSK re... Read more
New version of FT8CALL released
“Alright. Enough jib-jab. Here are the notable changes in 0.6: * Version 0.6 is not backwards compatible with 0.5 so you should upgrade ASAP. *... Read more
App - Mobile
EchoLink for iOS version 2.2 is now available
Photo:K5TRA EchoLink for iOS version 2.2 is now available in the App Store. This is a 64-bit build that is fully compatible with iOS 10 and modern iOS... Read more
Updated Android Digital QST App Now Available
A completely rebuilt digital QST app for the Android platform now is available from publisher Nxtbook Media, which responded to readers’ frustrations... Read more
HamSphere 4.0 Mobile APP
HamSphere 4.0 Mobile is a virtual portable Ham Radio transceiver for Shortwave, VHF and UHF bands. Talk with thousands of Ham Radio operators around t... Read more
Ham Radio Prefixes – Android App
Enter a call sign and get immediately all the geographical informations (country, ITU zone, CQ zone, GMT). Google Play: https://play.goo... Read more
OpenHPSDR Radio – Android App
Check this new app on Google Play Software Defined Radio. Supports the following hardware: HPSDR Atlas based systems using Metis. HPSDR Hermes... Read more
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