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
10 $ WIFI 16dBi Super Antenna Pictorial
“In this pictorial I’m showing you how to make a 16dBi very powerful wifi antenna for under 10 dollars. I’ve already posted a movie... Read more
InnovAntennas ‘Big Gun’ arrays
InnovAntennas continue to supply the World’s top DX’ers with large antenna systems with over 55% of sales being into the USA and 10% into... Read more
Squalo antenna for 6m by PA3HCM
Introduction – Squalo antenna Adri PA0RDA, a friend of me, is trying to do some DX on 6m for a while now. His antenna position is... Read more
Software
V1.0b of the Spectrum Analyser software developed by Steve Andrew specifically for the RSP line of products
“We are pleased to announce the availability of V1.0b of the Spectrum Analyser software developed by Steve Andrew specifically for the RSP line... Read more
Fldigi v4.1.08 now available
The hard-working development team led by W1HKJ have announced the release of Fldigi v4.1.08. This maintaneance release of Fldigi brings several bug f... Read more
WSJT-X 2.1.0 is available!
WSJT-X 2.1.0 Description WSJT-X implements communication protocols or “modes” called FT4, FT8, JT4, JT9, JT65, QRA64, ISCAT, MSK144, and W... Read more
News
New French CEPT paper still seeks 144-146 MHz for Aeronautical
The French administration has renewed its attack on the Amateur Radio 144-146 MHz band ahead of a key CEPT ECC CPG meetingin Ankara, August 26-30. In... Read more
Efforts Continue to Enhance ARES Program, Add Resources
The ARRL Board of Directors, committees, and Headquarters administrative staff are continuing efforts to enhance the venerable Amateur Radio Emergency... Read more
FCC issues $39,000 + Forfeiture Order against man from North Carolina
The WIA report the FCC has issued a $39,000 + Forfeiture Order against a man from North Carolina, for intentional misuse of a local public safety radi... Read more
Inter-American Proposal Removes 47 – 47.2 GHz from Bands under Study for 5G Services
The 34th meeting of the Inter-American Telecommunication Commission (CITEL) Permanent Consultative Committee II (PCC.II) concluded a week of meetings... Read more
ARRL Contest and DXCC Rules Now Prohibit Automated Contacts
Following the direction of the ARRL Board of Directors, ARRL has incorporated changes to the rules for all ARRL-sponsored contests and DXCC, prohibiti... Read more
