AFSK Paging Link

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AFSKAudio Frequency-Shift Keying Paging Link
AFSK POCSAG pic 1.PNG
Frequencies 72 MHzMegaHertz (MHz) 10^6 Hz72,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
72,000 kHzKiloHertz (kHz) 10^3 Hz
,76 MHzMegaHertz (MHz) 10^6 Hz76,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
76,000 kHzKiloHertz (kHz) 10^3 Hz
,450 MHzMegaHertz (MHz) 10^6 Hz450,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
450,000 kHzKiloHertz (kHz) 10^3 Hz
,460 MHzMegaHertz (MHz) 10^6 Hz460,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
460,000 kHzKiloHertz (kHz) 10^3 Hz
,850 MHzMegaHertz (MHz) 10^6 Hz850,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
850,000 kHzKiloHertz (kHz) 10^3 Hz
,928 MHzMegaHertz (MHz) 10^6 Hz928,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
928,000 kHzKiloHertz (kHz) 10^3 Hz
72,000 kHzKiloHertz (kHz) 10^3 Hz
72 MHzMegaHertz (MHz) 10^6 Hz
928,000 kHzKiloHertz (kHz) 10^3 Hz
928 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 72 MHzMegaHertz (MHz) 10^6 Hz72,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
72,000 kHzKiloHertz (kHz) 10^3 Hz
- 928 MHzMegaHertz (MHz) 10^6 Hz928,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
928,000 kHzKiloHertz (kHz) 10^3 Hz
Mode NFMNarrowband Frequency Modulation
Modulation AFSKAudio Frequency-Shift Keying
ACFAutoCorrelation Function
Bandwidth 9 kHzKiloHertz (kHz) 10^3 Hz9,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.009 MHzMegaHertz (MHz) 10^6 Hz
kHzKiloHertz (kHz) 10^3 Hz
0.009 MHzMegaHertz (MHz) 10^6 Hz
kHzKiloHertz (kHz) 10^3 Hz
0.009 MHzMegaHertz (MHz) 10^6 Hz
Location Worldwide
Short Description Pager Signals such as POCSAG, and quite possibly FLEX, are 'crossbanded' in such a way to use FMFrequency Modulation-modulated tones similar in a manner to Bell 202, Lojack, etc. Such examples lead to this term.
I/Q Raw Recording
Audio Sample

POCSAG crossbanding:[edit]

POCSAG's characteristics are usually characterized by the fashion that the audio spectrum, not RFRadio Frequency spectrum, is a pulse train. Thus re-modulation with crossbanding, or multimode operations happen.

Audio files:





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


Images:


FLEX will appear soon.