Monday afternoon pass of the ISS with FM communications from the Amateur Radio repeater on the ISS.
Автор: JOHN LOBBAN Creative
Загружено: 2026-02-16
Просмотров: 19
Описание: Monday afternoon with an overhead pass of the ISS with FM communications from the Amateur Radio repeater (NA1SS) on the International Space Station (ISS). The ISS was at 46° elevation. Because of Doppler shift requiring receivers to adjust by +/- 7 to 10 kHz, I’m tuning the receiver frequency slightly to compensate. (Hams exchange their callsign followed by a 4-character Grid Square that identifies their location on the globe. For example, the Putnam County area is Grid Square EM69.) I’m using an ICOM IC-705 Transceiver and Comet GP-9 Dual-Band VHF/UHF Vertical Antenna at 25’ elevation using the SDR-Control iPhone app. — The International Space Station (ISS) operates a cross-band FM repeater (IORS) that allows licensed amateur radio operators to communicate via a 2-meter uplink and 70-cm downlink, generally using an uplink of 145.990 MHz (PL 67 Hz) and downlink of 437.800 MHz. — #iss #spacestation #amateurradio #hamradio #AMSAT #repeater #space #icom705 #sdrcontrol
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