ARRL has reintroduced the popular title Experimental Methods in RF Design as a classic reprint edition. Immerse yourself in the communications experience. Build equipment while understanding basic concepts and circuits.
“This is a…classic, extremely good text on designing circuits for the ham,” ARRL Life Member Bob De Varney, W1ICW, a professional radio communication technician and avid experimenter said. “If you do any building at all and want to know the ‘why’ behind things, this is a very worthwhile addition to your bookshelf.”
Experimental Methods in RF Design classic reprint edition is available from the ARRL Store or your ARRL Dealer (ARRL item 0574), ISBN: 978-8-87259-9239-9, $49.95 retail. Contact ARRL Publication Sales or call 860-594-0355 (toll-free in the US, 888-277-5289).
This Classic Reprint Edition of a previous ARRL publication contains dated content and references that may no longer be relevant or valid. Software referenced throughout the book is not included and not available.
VHF
ROIP-102 Radio Repeater or Radio Trunking SIP Gateway Full PTT control (IETF SIP V2)
What is a Cross-Network Gateway? It enables voice communications among the Radio, VoIP, and Public Announce (PA) networks. It incorporates Radio over... Read more
Announcing the AMP-25 Series
We are excited to introduce our brand-new AMP-25 amplifiers! The AMP-25 series do more than just amplify a signal, they also purify your signal as it... Read more
QYT KT8900 UHF VHF Mini Mobile Radio
QYT KT8900 UHF VHF Mini Mobile Radio + Programming Cable Item number KT8900 General Frequency Range VHF:136-174MHz UHF:400-480MHz Number of... Read more
144 MHz signal from the Faroe Islands heard 3000kms away in Bulgaria during Geminid Meteor Shower – Dec 2020
Every year, the Geminid meteor shower peaks around the 14th of December and many VHF radio amateurs make contacts by bouncing signals off the meteor t... Read more
VHF Handbook Available for Download
The new version of the IARU Region 1 VHF Handbook 7.50 covering VHF, UHF and Microwaves is now available for download. The handbook has chapters on Ba... Read more
Review
Raspberry Pi Powered HF Radio in an Ammo Can GoBox
“Hello Operators. Topic of the day is the Raspberry Pi 3B+, and how I’m using it for amateur field communications. During May 18-21, I spe... Read more
Icom IC-9100 – QST Review
Icom IC-9100 Mark J. Wilson, K1RO, k1ro@arrl.org Reviewed by Rick Lindquist, WW3DE National Contest Journal Managing Editor ww3de@arrl.org The only re... Read more
GMRS Midland Micromobile Review, MXT275, MXT400 Radios
GMRS Midland Link to Part 1 https://youtu.be/AQTQptqusfc Part 2 in the micro series on GMRS. IN this video, I will show you a couple of the rad... Read more
Antenna
Triband Receiving Loop for 160/80/40m by AC0C
“Noise is the constant companion of the stealth antenna warrior. And as the 160m season heats up this winter, the noise level of the house with... Read more
2 Meter & 70 Centimeter Mobile Halo Antenna Project
“I have wanted to try 2 meter SSB mobile for some time but did not have a horizontally polarized antenna to try it out. Since I had success buil... Read more
New AZEL1000CBWP – M2 Antenna
M2 Antenna New AZEL1000CBWP. Weatherproof version of our AZEL1000 pedestal in action with 200-500 MHz Log Periodic and 500-1000 MHz Helix antennas in... Read more
Mobile Antenna Little Tarheel HP
” When properly installed on your vehicle this antenna will provide continuous coverage from 7.0 to 54 MHz with the supplied whip. The Li... Read more
C3S-JK – 2 Elements on 20M / 2 Elements on 15M / 2 Elements on 10M / 12 Foot Boom
The C3S-JK (Tribander) has been re-designed, optimized & Improved from the very popular Force 12 Tribander Here are the important changes/features... Read more
Contesting
Live Contest Scores !
Post your score during major contest Supported by: TR4W, Web-Post, N1MM, Win-Test, MixW, 5MContest, Referee, AATest, QARTest, WriteLog, UcxLog, Skooku... Read more
ARRL to Award John Devoldere, ON4UN, Memorial Plaque for ARRL 160-Meter Contest
For the ARRL 160-Meter Contest taking place December 4 – 6 UTC, the ARRL Programs and Services Committee — on behalf of the ARRL Board of Directors —... Read more
CQ WW 2015 – New Recording Rule
CQ WW “We have had some questions about the new rule on recording the contest. Here is the complete text of the new rule : “XII.C. Audio Record... Read more
Contesting Secrets – 2BSIQ Two Bands Synchronized Interleaved QSOs
“I will be in Contest University Italy on March 11 http://www.contestuniversityitaly.com/ My presentation will be about Contesting Secrets – 2BS... Read more
ARRL Announces Club Competition Eligibility Changes
Earlier this year, following a challenge that resulted in the realignment of several club scores in the ARRL 10 Meter Contest, it became clear that th... Read more
