“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
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
![New Icom IC-7651 [ Video ]](https://qrznow.com/wp-content/uploads/2016/08/ic-7651-190x122.jpg)
New Icom IC-7651 [ Video ]
Icom IC-7651 Read more
FTDX101D Operation Manual
FTDX101D Operation Manual (1904D-BS) ( 17.82 MB ) Amateur Radio \ Brochures \ HF/Satellite Transceivers and Amps FTDX101D Front Waterfall Pr... Read more
HAMlab 160-6 100W – SDR Transceiver
HAMlab 160-6 100W – SDR Transceiver Highlights SDR + measurement instruments rugged steel housing LDMOSFET 10W Linear amplifier (160M-6M) 1Gsps... Read more
CONDAN SENTRY-H 6110-MP
CODAN’S SENTRY-H 6110-MP DELIVERS A POWERFUL 30W RF POWER OUTPUT AND UP TO 55 HOURS OF BATTERY LIFE IN LESS THAN 5 KG OF WEIGHT. The 6110-MP forms an... Read more
Review
Portable Zero ICOM IC 7300 Escort
Specifications: Material: 5052 powder coated aluminum (Black) weight: 13.2 OZ measurements: 12″ X 3.70″ https://portablezerostore.e... Read more
![Kenwood TH-D74 VS Icom ID 51A [ Video ]](https://qrznow.com/wp-content/uploads/2017/05/vs-190x122.jpg)
Mobile Ham Radio Tips & Tricks Volume #1 by SignalSearch
Photo:Wayne-N0ISV Mobile Ham Radio Tips “A video about mobile ham radio setups by K5ACL & N5CFB. Please join SignalSearch as we dive into ou... Read more
Antenna
W3EDP Antenna
In the 1936 March issue of QST, Yardley Beers, W3AWH, described an antenna designed by his friend, Mr. H. J. Siegel, W3EDP. The design was based on th... Read more
6-40 Meter Alpha MOTO the mobile HF antenna
All Alpha Antennas are handmade & built to order. We appreciate your pride & patience in your antenna system as it is prepared. The Alpha MOTO... Read more
![Home Brew Lightning Disconnector [ Video ]](https://qrznow.com/wp-content/uploads/2016/11/fgbdf-190x122.jpg)
80m or 160m Reduced Half Sloper Antenna by W8AMZ
160m Reduced ½ Sloper Do You Have Limited Space? Do You Dream Of Operating 160m? NO PROBLEM! Do you... Read more
THE COKE LOOP Antenna by PY1AHD
“The Coke Loop is a Small Magnetic Loop Antenna tuned by a trombone-style variable capacitor made with standard soda cans. In Brazil we... Read more
Review
Coaxial cable quality review
Coaxial cable quality review What to look for in a coaxial cable and at what price? Not all coaxial cables are constructed equal. This is what you sho... Read more
Yaesu FTM 3200DR Transceiver- ARRL Review Video
FTM-3200DR C4FM FDMA / FM 2-Meter TRANSCEIVER The new FTM-3200DR is a ruggedly built yet compact C4FM/FM VHF mobile transceiver, providing high outp... Read more
Ham radio HF Go-Kit QRP contacts FT-817 emcomm SHTF doomsday
Here is a video about my go-kit with my FT-817 and making some contacts QRP. Videos on almost all items can be seen on my channel. In this kit i have... Read more
The Siru Innovatios SDR20 adds new features
New features * Smooth zoom in FFT/waterfall view * Adaptive menu * Frequency memory with snapshot pictures of signals * Sliding effect between views *... Read more
Controlling the OM2000A+ from Tablet
The automatic linear amplifier OM2000A+ is designed for all short wave amateur bands from 1.8 to 29 MHz (including WARC bands) + 50 MHz and all modes.... Read more
Digital Modes
ZL1BPU Wins June QST Cover Plaque Award
The winner of the September 2015 QST Cover Plaque award is Murray Greenman, ZL1BPU, for his article “FSQ: Fast, Simple QSO.” The QST Cover Plaque Awar... 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
K1JT , JOE TAYLOR HINTS AT POSSIBLE NEW MODE!
In a post to the WSJT-X email group today, Joe Taylor K1JT hinted at some ongoing experimentation of a new digital mode with sub-modes. His post was a... 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
App - Mobile
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
iWSPR TX – WSPR for iOS version 2.8 now available
WSPR WSPR implements a protocol designed for probing potential propagation paths with low-power transmissions. Normal transmissions carry a station’s... Read more
Look4Sat: Radio satellite tracker – APP
Ham radio and weather satellite tracker and passes predictor inspired by Gpredict Main features: – Calculating satellite passes for up to one week (16... Read more
SmartSDR for iOS v2.1.0 Now Available
FlexRadio Systems announces the release of SmartSDR for iOS v2.1.0 is now available for download or update from the Apple App Store. This App requires... Read more
DX Alert App ( Mobile )
DX Alert App Instead of being connected to a DX cluster directly you can use DX Alert to monitor the cluster for you and get notifications on your pho... Read more
