The US Naval Academy has received IARU satellite frequency coordination for HFsat, a 1.5 U CubeSat with a 15- to 10-meter linear transponder with a 30 kHz bandwidth (uplink 21.4 MHz, downlink 29.42 MHz). The Mode K configuration is reminiscent of the old “RS” series of Russian satellites.
The CubeSat will also carry an APRS digipeater on 145.825 MHz. HFsat is a project to demonstrate the viability of HF satellite communications as a back-up communications system, using HF radios found in a typical Amateur Radio installation or frequently used to support disaster and emergency response communication.
“HFsat will be gravity gradient-stabilized by its full-sized 10-meter half-wave HF dipole with tip masses,” said Bob Bruninga, WB4APR.
A standardized CubeSat VHF communication card based on the popular Byonics MTT4B all-in-one APRS Tiny-Track4 module for telemetry, command, and control is under development at the US Naval Academy. US Naval Academy students are working with Bill Ress, N6GHZ, on the HF transponder card.
“WOUXUN ELECTRONICS sincerely invites esteemed you and your company representatives to visit our booth at the coming Hong Kong Electronics Show... Read more
Radioddity GD-55 UHF Waterproof DMR Digital Radio, with GPS Function! 10W with 2800mAh Lithium Polymer (Li-Po) Battery
Introducing the Radioddity GD-55, A Tougher DMR Radioddity’s first proprietary radio is designed to meet the most demanding of conditions, and dole ou... Read more
To fully utilize all the features you have to use Windows PC to program this radio. Not Compatible with CHIRP and RT systems software. FCC Part 90 C... Read more
The just-concluded run of ionospheric investigations conducted from Alaska’s High Frequency Active Auroral Research Program (HAARP) observatory — quit... Read more
A working prototype of OSCAR 1, Amateur Radio’s first satellite, will be on display at AMSAT’s Dayton Hamvention® booth. AMSAT’s exhibit will be in Bu... Read more
Wednesday, April 18, is World Amateur Radio Day (WARD), this year marking the 93rd anniversary of the International Amateur Radio Union (IARU), founde... Read more
Description The fun and efficient way of learning morse code! Features: – Uses Koch’s training method (the most efficient known to date)... Read more
Log Periodic Dipole A Super Wide Band, High Performance Log Periodic Dipole Array – 10MHz to 54MHz inclusive All InnovAntennas LPDA’s are design... Read more
The built-in SWR indicator makes the Alpha Loop so very easy to tune! Now you can suddenly hear everyone, and they can hear you! This is an antenna th... Read more
Connecticut native Melissa Stemmer has joined the ARRL Headquarters staff as Development Manager. Born and raised in Waterbury, Stemmer earned a bache... Read more
CWops is now accepting nominations for its Award for Advancing the Art of CW for 2020. The award recognizes individuals, groups, or organizations that... Read more