Single sideband modulation revolutionized electronic communication, but where did the idea come from? Antique Wireless Association Curator Emeritus Ed Gable, K2MP, tells the surprising story of single sideband, its origins, the developers, companies and the hardware that brought it to the forefront of wireless communication. This presentation is the first of the AWA’s monthly “AWA Shares” series.
Antenna
High Performance RX Antennas for a Small Lot
Jose Carlos (JC), N4IS, will look at basic concepts of RX antennas and share his experiences with lowband RX antennas on a small lot, including the Wa... Read more
Camouflaged Ham Radio Antenna
Model Frequency (MHz) Gain (dBi) Length Feedline VT-14 144-148 2.6 36 in. 3 ft. RG-58 VT-22 222-225 2.6 25 in. 3 ft. RG-58 VT-44 440-450 2.6 16... Read more
Small Cheap Linear Loaded 80m Dipole
The legs of this dipole are only 12.4m long (about 40 feet). Read more
Wire log periodic HF antennas – LP 1530-W
(N4LEM, sk ) photo by VA1CM See More :http://www.antenna.it/index.htm Read more
Review
![Silphase R1 receiver [ VIDEO ]](https://qrznow.com/wp-content/uploads/2020/07/head-img-265x168.png)
Silphase R1 receiver [ VIDEO ]
Silphase R1 receiver. Telescoping antenna 1.15m. Location is city center Warsaw, Poland. Outside temperature +4 Celsius degrees. Frequency 1413 kHz. I... Read more
Venus Technologies SW-3B QRP CW Transceiver Review
Looking at the Venus Technologies SW-3B QRP CW Transceiver for 20/30/40 meters. Dimensions: 104*71*25mm (excluding the protruding part such as kn... Read more
Equipment
ARRL Handbook – Assembling a (Ham Radio) Station!
“I’ve been mentioning your years that the ARRL Handbook is a fantastic resource for most amateur radio operations. Today I will be talking... Read more
COMET ANTENNA ANALYZER CAA-500MARKII
CAA-500MARKII The NEW CAA-500MARKII SWR/Impedance Analyzer is finally arriving from the Comet factory! The new analyzer retains the same analog cross... Read more
Hermes Lite 2 HF SDR Construction And Receive Test
Here we build the Hermes Lite 2 HF SDR and test it’s receive capabilities. Read more
First Videos CRT 2000 !
CRT 2000 Videos – 40 AM / FM channel multistandard European – Power: 4 Watts AM / FM – Supply voltage: 12/24 Volt – 4 storable... Read more
DR4020 Dual band Digital QRP radio
A simple QRP digital transceiver. — Fully assembled and tested– Perfect for outdoor digital radio contacts,such as FT8,FT4,JT65 etc. Band: 20... Read more
News
Use your Privileges Properly – Ham Radio
Due to some inquiry by Eric, KB0YDN, I decided to make this video discussing the incident of the Ham Firefighting Interference in Idaho Last year. Thi... Read more
ISM Packet Decoder Plugin For SDR Sharp – RTL 433
Here we take a look at the RTL433 Plugin for SDR Sharp, making it easy to decode ISM RF Packets. https://github.com/marco402/plugin-Rtl433-for-SdrShar... Read more
Increase in unidentified intruders
IARUMS newsletter IARU Monitoring System (IARUMS) Region 1 newsletter reports an increase in unidentified intruders in the amateur radio bands followi... Read more
I’m an Intern at ARRL Headquarters!
“I’m Jherica Goodgame, KI5HTA, and I’m a 2022 summer intern at ARRL HQ. Join me while I show you around some of my favorite parts of... Read more
Antenna on Sloping Ground – What happens?
“Various terrain and Antennas: You can make the slope work to your advantage. I know your next question already. Hang on. I’ll make a vide... Read more
![Expert Linear 1.5-FA Solid State Amplifier [ Hamvention ]](https://qrznow.com/wp-content/uploads/2022/06/spe-90x60.png)
![Expert Linear 1.5-FA Solid State Amplifier [ Hamvention ]](https://qrznow.com/wp-content/uploads/2022/06/spe-180x120.png)
