The Fox-1A (AO-85) CubeSat has been turned off until further notice due to return of eclipses and poor battery condition, control operator Mark Hammond, N8MH, has announced. In December, AO-85 experienced precarious battery voltage drops during eclipse periods; it’s believed that the batteries suffered degradation due to heat during previous no-eclipse periods, making it difficult to keep the satellite available without risking battery damage.
To extend the satellite’s usable life, both the internal housekeeping unit (IHU) and the transmitter were shut down, ceasing all transmissions. This included the beacons running every 2 minutes during times of sunlight and eclipse. AO-85 was turned back on during the next full-sun illumination period that began on January 24 and enabled for regular use. AO-85 occasionally reset due to low battery voltage and operated in safe mode.
With AO-85 leaving full illumination and encountering periodic eclipses, its battery condition again began to deteriorate again. The satellite’s health will be tracked with periodic telemetry transmissions when commanded by a control operator. AMSAT asks satellite enthusiasts to continue tracking AO-85 in FoxTelem and post to the AMSAT-BB or contact Drew Glasbrenner, KO4MA. — Thanks to AMSAT News Service
TYT MD-380 UHF 400-480MHZ Digital Radio(DMR) ■Remote kill/stun/activate ■Priority Scan ■Voice Prompt ■Complying with digital protocol ETSI TS10... Read more
“I stopped by the GigaParts booth at Orlando Hamcation this year, and spoke with the guys at DVMEGA who explained this unit and what it will do.... Read more
Description Overview It will be 5 elements twin loop antenna of amateur radio 1200Mhz band for mobile. Decomposed and we try to carry. Connector will... Read more
“In this video I want to show you the 40M band UltraLight Magnetic Loop Antenna, how to setup it and testing in the real QRP conditions. During... Read more
HF Mobile Antenna Covers 80-6 Meters with 4 1/2 foot mobile or 10 foot fixed operation telescoping whip. Continuously adjustable loading coil is 36 in... Read more
BURST 2000A HF power amplifier BURST-2000A 2200 W PEP output power (SSB and CW) All HF bands, including WARC bands and 6 meters Rated input pow... Read more