“Antenna Rotators” is the topic of the new (August 2) 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.
Antenna
4O3A ANTENNA GENIUS 8X2 | SO2R ANTENNA SWITCH WITH TCP/IP
Ranko 4O3A has taken antenna switches into the 21st century! Antenna Genius 8×2 is the first in a new antenna switch line from 4O3A Signature sit... Read more
TN07 SFP-102 32′ Flagpole HF Ham Radio Antenna for POTA
“One of the Ham Radio Antennas that I have used most often for POTA – Parks on the Air – is the TN07 SFP-102 32′ telescoping f... Read more
Emergency Antenna Platform System (E-APS) – WC2FD
A system to facilitate emergency radio communications from parking lots using lamp posts as antenna masts. Designed and built by the kids of th... Read more
Jim W6LG Uses A Short Dipole To Demonstrate How A Dipole Functions
Jim makes and then shows his tunable half wavelength dipole antenna. Using an antenna analyzer, Jim finds the resonant frequency and the lowest SWR do... Read more
Grounding a Counterpoise on End-Fed Half Wave Antenna
Laurence, WA2TLY, is asking some questions about a few aspects of the EFHW 80-10 antenna, Why they are there and what they are for? Read more
VHF
AnyTone AT-D878UVII Plus Unboxing and Demo
In today’s video, we’ll be sharing a live unboxing of the AnyTone AT-D878UVII Plus as well as a product demo. VHF/UHF DUAL BAND: Feat... Read more
Amateur Radio Roundtable to Livestream 50 Hours of Dayton Hamvention®
Amateur Radio Roundtable and host Tom Medlin, W5KUB, will be back at Dayton Hamvention to livestream the activity and action before, during, and after... Read more
Dutch IARU Member-Society Invites Hams to Participate in 2-Meter Propagation Experiment
The International Amateur Radio Union (IARU) member-society in the Netherlands, VERON, has invited radio amateurs from around the world to take part i... Read more
New RFinder P10 Tablet with Dual Band DMR and RTL-SDR Receiver – Huntsville Hamfest
“From the Huntsville Hamfest, we sit down with Bob, W2CYK, and he shows us the new P10 Tablet from RFinder with RTL-SDR Receive and the traditio... Read more
New Arrival! Dual Mode Portable Repeater RT97P
Dual Mode Portable Repeater RT97P will come. It is similar to the portable repeater RT97. Now we have the RT97 GMRS band, and this RT97P is the d... Read more
Equipment
OM4000 HF POWER AMPLIFIER – 4KW
GENERAL DESCRIPTION OF THE OM4000 HF POWER AMPLIFIER The linear amplifier OM4000 HF is designed for all short wave amateur bands from 1.8 till... Read more
YAESU SMB-201 DESKTOP COOLING FAN – Compatible With FTM-400DR, FT-8900R, FT-8800R & FT-7900R
YAESU SMB-201 With so many diverse ways to enjoy Amateur Radio such as WIRES-X and packet operation, transceivers are now having to deal with increase... 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
857Sprint portable battery pack system designed specifically for the yaesu FT-857D
Yaesu FT-857D The 857sprint is a self contained tacticlal portable battery pack system designed specifically for the yaesu FT-857D amateur radio. (rad... Read more
App - Mobile
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
A New App Visualizes the Radio Waves All Around Us
Radio Waves The modern world is awash in a sea of radio waves — currents of electromagnetic radiation upon which our digital lives depend. What if you... Read more
Free APRS application for iOS
What it’s all about A modern APRS app for iOS users, with models detection, frequencies detection, C4FM highlight… More features Receive l... Read more
My LoTW – Free app for iOS and Android
My LoTW is a viewer app for ARRL’s Logbook of the World. With My LoTW, you can: – View all the QSOs you have submitted to LoTW. –... Read more
APRSdroid – APRS for Android
What is APRSdroid? APRSdroid is an Android application for Amateur Radio operators. It allows reporting your position to the APRS (Autom... Read more
