# Possible APOC signal with multiple AFSK modulations

I have heard of the possible advanced paging protocol APOC being POCSAG's advanced brethren, but due to Phillips unfortunately bankrupt thingy and other contracts, it was left out and unheard of. But I may have a hand on one that is still active In Chicagoland Area, with a frequency of 454.475 MHzMegaHertz (MHz) 10^6 Hz, I have never heard anything but STRANGE come out of my Pro 106 scanner's speaker. Screeching high baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. speeds of about 3 types of 1200 BaudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. speeds, (that is with the normal AFSKAudio Frequency-Shift Keying modulation of POCSAG) as well as some changes in some modulated frequencies for some 1200 Bauds, as well as (maybe) a 3200 baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. signal, and about 2 types of 2400 baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. signals. As well as the standard AFSKAudio Frequency-Shift Keying paging link 1200 and 2200 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 512 BaudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.. But due to negative strands, this was recorded off of the radio scanner unfortunately, but with enough strength to give a spectrum...

there is also a ring appearing to be VERY distorted, but with the waveform AND specturm actually taking about the same amount of bandwith, (10000 hz), and of course MDC 1800.

In plain simplicity since there is a lot of 1200 baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. and 2400 baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. modulations, but only a couple of 1800 baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. modulations, I might deem to say this might be the only one left as Ameritech Utd is STILL around with its own pager story I guess.

1300 and 2000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). RING, distorted

1300 and 2000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 3200 baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. modulation,

1200 and 2200 "normal" AFSKAudio Frequency-Shift Keying paging link modulation, 1200 BaudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.

1300 and 2000 hz 1200 BaudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. modulation

2200 and 4400 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 2400 BaudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. modultion (or maybe even 4800 baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. since thats possible with APOC)

Samples and images to follow this extremely weird and convoluted signals.