“Lee, KD9SWA, wants to know how to tune his antenna without an analyzer as he does not have one right now. He has an SWR meter and some good methods to find it without all the tools but is there a better way?”
Antenna
7 EL. DELTA LOOP “THE CLAW”
7 elements full size arranged on a single boom, divided into 2 parts for 20 m, 2 elements for 15m and 3 elements for 10m in spotlight radiator configu... Read more
500 mW on 7 MHz with the Wadetenna
Testing the Wadetenna on 7 MHz SSB. Only 500 milliwatts was used instead of the usual 5 watts. Contacts up to about 500km, mostly to portable stations... Read more
Improving Suburban HF Vertical Antennas
HF verticals are very popular for the smaller suburban gardens. How do they perform and are there any improvements you should consider? Read more
Build the Pennyloop UHF Antenna
by Pennyloop The Pennyloop UHF antenna offers high performance in a very simple and cost effective design. It is also a very compact design lending it... Read more
![Navassa 5 Elements [ K7AGE ] – : Part 9](https://qrznow.com/wp-content/uploads/2020/03/jka-navassa5_xl-265x168.jpg)
Navassa 5 Elements [ K7AGE ] – : Part 9
JK Navassa-5 2 Elements on 10M / 2 Element on 12M / 2 Elements on 15M / 2 Elements on 17M / 2 Elements on 20M / 12ft Boom JK Antennas Navassa-5... Read more
Review
Review of SDRplay SDRduo Two-Tuner SDR Radio
“SDRplay has done it again with an outstanding and technically sophisticated software-defined radio that even at $280 is still a bargain. The vi... Read more
Building an Ultra Portable Go-Box
LUITON LT-898UV Dual Band Mobile Main features: 1. Dual band: 136-174MHz/400-470MHz/245MHz (Receive only) ; 2. Dual Reception/Dual Display ; 3.... Read more
BTECH DMR-6×2 and Anytone AT-D868UV, Side by Side
“In today’s episode, I do a side by side comparison of the BTECH DMR-6×2 dual band radio, and the Anytone AT-D868UV dual band DMR HT.... Read more
Everything About GMRS Radio, General Mobile Radio Service, Midland
“Part 1 of my 3 part series of a mode that you may be interested in. GMRS, General Mobile Radio Service. Picture it as a licensed service servic... Read more
Equipment
INRAD Microphones – 2017 Dayton Hamvention
NEW! Quality microphones and accessories with affordable pricing for the active ham. Something for every shack! INRAD, a division of Vibroplex® LLC,... Read more
QDX digital transceiver
I brief description of a construction problem, symptoms and solution regarding the QDX digital transceiver from QRP Labs. The “QCX+” (QRP... Read more
Antenna Genius
Did you know that Antenna Genius can be combined into a super switch matrix, expanding on the number of either antenna ports or the number of radios?... Read more
Release the KrakenSDR!
KrakenSDR is now available for crowdfunding on Crowd Supply. Thank you to all interested parties for your patience while we navigated recent pandemic-... Read more
Newly released pictures of the new FTDX10 SDR
Newly released pictures of the new FTDX10 SDR Read more
