AO-92 commissioned, open for Amateur use
Initially, the U/v FM transponder will be open continuously for a period of one week. After the first week, operations will be scheduled among the U/v FM transponder, L-Band Downshifter, Virginia Tech Camera, and the University of Iowa’s High Energy Radiation CubeSat Instrument (HERCI). AMSAT
A better antenna for dualband handhelds
Recently, I wondered how well the antenna is really performing so I did a side-by-side comparison with the Smiley 2m halfwave. AmateurRadio.com
Massive 78-year-old transmitter for sale
A piece of radio history could be yours for $5,000. A 1940 RCA 50 kW shortwave transmitter, located at the decommissioned Radio Canada International Site in Sackville, is up for sale. CBC
A grave threat to GPS
In the coming months, the U.S. Federal Communications Commission (FCC) may allow high-powered, ground-based, communication transmitters to broadcast at a frequency near GPS L1. GPS World
Visualizing satellite doppler shift
Doppler Shift is experienced as the satellite (wave source) is moving relative to you, the observer (or receiver) of the transmitted wavelength. N1AAE
