PAX

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OLIVIA based Modes: Olivia - Contestia - RTTYM - PAX - VOICE
PAX
PAX.jpg
Frequencies 3.590 Mhz3,590,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
3,590 kHzKiloHertz (kHz) 10^3 Hz
,7.042 MHzMegaHertz (MHz) 10^6 Hz7,042,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
7,042 kHzKiloHertz (kHz) 10^3 Hz
,10.148 MHzMegaHertz (MHz) 10^6 Hz10,148,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
10,148 kHzKiloHertz (kHz) 10^3 Hz
,14.075 MHzMegaHertz (MHz) 10^6 Hz14,075,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
14,075 kHzKiloHertz (kHz) 10^3 Hz
,144.620 Mhz144,620,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
144,620 kHzKiloHertz (kHz) 10^3 Hz
3,590 kHzKiloHertz (kHz) 10^3 Hz
3.59 MHzMegaHertz (MHz) 10^6 Hz
144,620 kHzKiloHertz (kHz) 10^3 Hz
144.62 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 3.59 MHzMegaHertz (MHz) 10^6 Hz3,590,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
3,590 kHzKiloHertz (kHz) 10^3 Hz
- 144.62 MHzMegaHertz (MHz) 10^6 Hz144,620,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
144,620 kHzKiloHertz (kHz) 10^3 Hz
Mode USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables)
Modulation MFSKMultiple Frequency Shift-Keying
ACFAutoCorrelation Function
Bandwidth 500 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).0.5 kHzKiloHertz (kHz) 10^3 Hz
5.0e-4 MHzMegaHertz (MHz) 10^6 Hz
0.5 kHzKiloHertz (kHz) 10^3 Hz
5.0e-4 MHzMegaHertz (MHz) 10^6 Hz
0.5 kHzKiloHertz (kHz) 10^3 Hz
5.0e-4 MHzMegaHertz (MHz) 10^6 Hz
Location Worldwide
Short Description PAX and PAX2 are developed by Patrick Lindecker F6CTE in 2005, and was derived from Olivia. It utilizes the AX.25 protocol that PACKET uses, and had a minimum SNR of -10dB. Can transmit APRSAutomatic Packet Reporting System, an amateur radio-based system for real time tactical digital communications of information of immediate value in the local area frames.
I/Q Raw Recording
Audio Sample
PAX and PAX2 are developed by Patrick Lindecker F6CTE in 2005, and was derived from Olivia. It utilizes the AX.25 protocol that PACKET uses, and had a minimum SNR of -10dB. Can transmit APRSAutomatic Packet Reporting System, an amateur radio-based system for real time tactical digital communications of information of immediate value in the local area frames.

PAX has a baudrate of 62.5 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. at 59 wpm and uses 8MFSK with 62.5 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). shift between tones in a bandwidth of 500 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz)..

PAX2 is twice as fast as PAX and has a baudrate of 125 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. at 117 wpm and uses 8MFSK with 125 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). shift between tones in a bandwidth of 1000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz)..

Both PAX modes use 6-bit ASCII encoding alphabet. PAX is more robust compared to PACKET.


Samples[edit]

PAX PAX2
PAX.jpg
PAX2.jpg

Frequencies[edit]

PAX is used on 3.590 Mhz, 7.042 MHzMegaHertz (MHz) 10^6 Hz, 10.148 MHzMegaHertz (MHz) 10^6 Hz, 14.075 MHzMegaHertz (MHz) 10^6 Hz, 144.620 Mhz.

Decoding Software[edit]

Hobby Level Software


Video Examples[edit]

Additional Links[edit]

Additional Images[edit]