Golay Paging (GSC)

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Golay Paging (GSC)
Golay.jpg
Frequencies 932 MHzMegaHertz (MHz) 10^6 Hz932,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
932,000 kHzKiloHertz (kHz) 10^3 Hz
,33 MHzMegaHertz (MHz) 10^6 Hz33,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
33,000 kHzKiloHertz (kHz) 10^3 Hz
33,000 kHzKiloHertz (kHz) 10^3 Hz
33 MHzMegaHertz (MHz) 10^6 Hz
932,000 kHzKiloHertz (kHz) 10^3 Hz
932 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 33 MHzMegaHertz (MHz) 10^6 Hz33,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
33,000 kHzKiloHertz (kHz) 10^3 Hz
- 932 MHzMegaHertz (MHz) 10^6 Hz932,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
932,000 kHzKiloHertz (kHz) 10^3 Hz
Mode NFMNarrowband Frequency Modulation
Modulation FSKFrequency-Shift Keying
ACF
Bandwidth 2600 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).2.6 kHzKiloHertz (kHz) 10^3 Hz
0.0026 MHzMegaHertz (MHz) 10^6 Hz
2.6 kHzKiloHertz (kHz) 10^3 Hz
0.0026 MHzMegaHertz (MHz) 10^6 Hz
2.6 kHzKiloHertz (kHz) 10^3 Hz
0.0026 MHzMegaHertz (MHz) 10^6 Hz
Location Worldwide
Short Description Golay Paging (or Golay Sequential Code, GSC) is a one-way 2-FSKFrequency-Shift Keying paging format developed by Motorola. It is capable of transmitting tone, numeric, alphanumeric, and voice pages.
I/Q Raw Recording Download file
Audio Sample
Golay Paging (or Golay Sequential Code, GSC) is a one-way 2-FSKFrequency-Shift Keying paging format developed by Motorola. It is capable of transmitting tone, numeric, alphanumeric, and voice pages. The pager address information is sent at 300 bpsBits per second (bps) while the data is transmitted at 600 bpsBits per second (bps).

For purposes of improving battery life and avoiding false alerts due to other encoding formats sharing the same frequency, pagers are divided into groups. A preamble code,as in 5/6 tone paging, is transmitted prior to page alerts. Only pagers that fall within the group number specified by the preamble code transmitted need look for their particular pager address within the stream of paging data that follows.

This mode was named Golay for it's use of Golay Code for Forward Error Correction, developed by a mathematician, Marcel J.E. Golay.


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An extended IQ recording can be downloaded here.


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