SNR – Signal-to-Noise Ratio
From the 2018 TAPR Digital Communications Conference, we learn about a true measurement of signal to noise ratio on some of the most popular HF Digital modes.
Signal-to-noise ratio (abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. SNR is defined as the ratio of signal power to the noise power, often expressed in decibels. A ratio higher than 1:1 (greater than 0 dB) indicates more signal than noise.
Antenna
Spiderbeam 30-17-12m HD (WARC)
The Heavy Duty Spiderbeam is a specially reinforced version, optimized for permanent installation at home (see chapter 4 of our construction guide PDF... Read more
PST-RR55D-PRO – Ring Rotor
Ring rotor for trellis up to 52cm on the side. It can be mounted anywhere on the truss. The whole structure is made of laser-cut AISI316 stainless ste... Read more
Adjustiwave Antenna – 80m through 2m
Adjustable 1/4 wave antenna – homebrew version Read more
Software
Gqrx 2.13 is out!
Gqrx SDR 2.13 argilo released this 15 hours ago Stereo option for UDP streaming. Script to generate AppImage. Allow scroll wheel direction to be inve... Read more
WSJT-X Beta Release Introduces Digital Protocols Designed for LF and MF Bands
The latest beta release of the WSJT-X digital software suite includes digital protocols particularly designed for communication on LF and MF... Read more
The CAT Tool for WebSDRs
CATSync allows you to syncronize public WebSDR receivers with your real rig connected via CAT control to your computer. It supports the classical WebS... Read more
Review
Xiegu GSOC – An Overlook of Functions and Features
Xiegu GSOC – An Overlook of Functions and Features Read more
Measuring Crystals with NanoVNA and other tools
Measuring Crystals with NanoVNA and other tools Read more
Best HF Ham Radio Under $1000 – 6 Best HF Transceivers 2020
What is the Best HF Radio for under $1000 for the new Ham Radio Operator in 2020? This list of 6 transceivers that I would recommend to new Ham Radio... Read more
News
It’s a Wrap for Hurricane Watch Net, ARES Teams Stand Down
After an activation that lasted more than 9 hours, the Hurricane Watch Net (HWN) suspended operations on October 28 at around 0130 UTC. “Although Zeta... Read more
RSGB Seeks Regulator’s Records of Complaints about On-Air Behavior
The Radio Society of Great Britain (RSGB) has filed a freedom-of-information request to UK telecommunications regulator Ofcom in an effort t... Read more
Oldest Known US Radio Amateur, Cliff Kayhart, W4KKP, SK at 109
Charles Clifford “Cliff” Kayhart, W4KKP, of White Rock, South Carolina, died on October 26, a few days past his 109th birthday. An ARRL member, he was... Read more
Radio Amateurs in Western Pennsylvania to Commemorate KDKA Broadcasting Centennial
Pittsburgh radio station KDKA will celebrate 100 years of radio broadcasting in November, and Pennsylvania radio amateurs will honor that milestone... Read more
New Zealand Radio Amateurs Lose Access to 60 Meters
Radio amateurs in New Zealand no longer have access to 60 meters, effective on October 24. Use of the band by radio amateurs in New Zealand is provisi... Read more
