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Low Earth Orbit FM OSCARs

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OSCAR:Low Earth Orbit FM OSCARs A number of OSCAR satellites can be categorized as frequency modulated (FM) low earth orbit (LEO) satellites. These are also commonly referred to as "FM LEO's" or the "FM Birds". Such satellites act as FM amateur radio repeaters that can be communicated through using omni-directional antennas and commonly available amateur radio equipment. Due to the relative ease of tuning FM as compared to SSB and the decreased distance of LEO satellites from earth stations communication can be achieved even with handheld transceivers and using manual doppler correction. The orbit of these satellites however causes the available time in which to communicate to be limited to only a few minutes per pass.

List of FM LEO satellites
Name OSCAR Number Uplink (MHz) Downlink (MHz) CTCSS Tone (Hz)
Hope Oscar 68 XW-1 145.8250 435.6750 67.0
Sumbandila Oscar 67 SO-67 145.8750 435.3450 233.6
AMSAT-OSCAR 51 AO-51 145.8800 435.1500, 2401.2000 N/A
AMSAT-OSCAR 51 AO-51 145.9200, 1268.7000 435.3000, 2401.2000 N/A
Saudi-OSCAR 50 SO-50 145.8500 436.7950 67.0
ISS ARISS 437.8000 145.8000 N/A
AMRAD-OSCAR 27 AO-27 145.8500 436.7950 N/A