AFSK

AcronymDefinition
AFSKAudio Frequency Shift Keying
AFSKAutomatic Frequency Shift Keying
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The ARC-187 provides AM and FM voice, AFSK secure teletype, NTDS Link 11 data, wideband and narrowband SATCOM and ADF communications in a 30/ 100-W package.
Hopping on the anti-jam bandwagon
9 kg 10 or 30 Watts* Waveforms: USB, LSB, AM, CW, AFSK, Ale Encryption: 5 or 25/sec freq hopping w/o master station Notes: 500 programmable channels, GPS tracking, digital crypto handset interface, * 100 Watts in vehicle dock PRC-2150 Datron 30 MHz 4.
Spreading the spectrum amongst friends
Waveforms: USB/LSB (J3E), AM (H3E), AFSK (J2A), CW (JIA)
Long-distance whispering: the idea of packing a radio on one's back over a desert, through a jungle or up-river in a small boat when there are so many hand-held options available reeks of sacrilege in terms of weight penalty. But the difference those few extra Watts of power make when exchanging time-critical information is viewed with not-so-well-disguised veneration
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