AFSK Paging Link

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AFSK Paging Link
AFSK POCSAG pic 1.PNG
Frequencies 72 MHz,850 MHz,928 MHz,76 MHz,450 MHz,460 MHz,470 MHz
Frequency Range 72 MHz - 928 MHz
Mode NFM
Modulation AFSK
ACF
Bandwidth 9 kHz
Location Worldwide
Short Description An FM-modulated version of POCSAG and/or FLEX by using Bell 202 AFSK, Lojack, etc. Thus leading to this term.
I/Q Raw Recording Download file
Audio Sample


As POCSAG in originality is FSKFrequency-Shift Keying, the reality is, if read in FMFrequency Modulation, its actually read as a pulse train. Companies utilize these AFSKAudio Frequency-Shift Keying modes for multimode ops, or for simple end-end link transmission on another frequency. (See Glenayre Paging Link for details).

Audio files:[edit]







I/Q:[edit]

https://drive.google.com/open?id=1weV6dasw3XuFUqomQhKPgW242Hk4Ma5q


Images:[edit]

other examples:[edit]

A couple of examples generated from a dutch POCSAG encoder plugin and FMFrequency Modulation modulated in an audacity plugin:





The result when AFSKAudio Frequency-Shift Keying is mixed in with Flex @6400 BaudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.:


Video examples[edit]

https://www.youtube.com/watch?v=AOuQF-BSY8k&feature=youtu.be