Content tagged with Video

Communication Planning for Large Scale Events

In this RATPAC Amateur Radio video Travis Johnson, KE5FXC, an Emergency Communications Coordinator with the Cyber Security and Infrastructure Security Agency (CISA)—speaking in an unofficial capacity as KE5SXC—addresses communications plans for large-scale events and presents the framework that he personally uses for communications planning and discusses some of the ideas behind it.

All You Need to Receive SSTV Images From ISS

This is a demonstration of the minimal setup to download SSTV images from the International Space Station ISS. I use a Quansheng UV-K5 set to 145.800 an sql at 0. It is then decoded on the fly using an android tablet with the Robot36 app. You may also record the audio and later decode using Robot36, MMSSTV on your computer or your other favourite decoder.

AMSAT OSCAR 7: the Ham Satellite That Refused to Die

When the AMSAT-OSCAR 7 (AO-7) amateur radio satellite was launched in 1974, its expected lifespan was about five years. The plucky little satellite made it to 1981 when a battery failure caused it to be written off as dead. Then, in 2002 it came back to life. The prevailing theory being that one of the cells in the satellites NiCd battery pack, in an extremely rare event, failed open — thus allowing the satellite to run (intermittently) off its solar panels.