Packet Radio
For APRS packet activity:
In the US and some other countries, the primary nationwide APRS frequency is 144.39 MHz. In Europe, Australia and other parts of the world, it is 144.80 MHz.
There is also some HF APRS activity, primarily around 10.151.51 MHz LSB (North America) and 14.105.51 MHz LSB (except in ITU Region 3).
For BBS, Packet Cluster, Networks and Packet Conversations:
In the US, most packet activity is found on the 2 meter band:
- 2 meters: Baud rate is typically 1200. he most common frequencies are 144.93, 145.01, 145.03, 145.05, 145.07, 145.09 and 145.53 MHz, but you may find it anywhere between 144.90-145.10 and between 145.50-145.80. The baud rate used is 1200.
- 1.25 meters (220 band): most packet heard in this band will be "backbone" traffic between network nodes and BBSs. It will not be an access band for users.
- 70 cm (440 band): The packet allocation for the band (mixed mode segment) is 432.10-432.30 and 432.40-433.00. Packet should not be used below 432.00. By local option, packet could also be used from 442.000 to 445.950 and 446.100 to 448.000. Baud rate may be 9600 or 1200.
For HF Packet:
HF BBS: In North America, you can find the "Network 105" BBS on 14.105 MHz LSB. Baud rate is 300.
HF Conversations:
Band Suggested Frequencies all LSB / Lower Side Band*(channel centers = RF between the 2 tones)
80 3580-3635Packet Radio
For APRS packet activity:
In the US and some other countries, the primary nationwide APRS frequency is 144.39 MHz. In Europe, Australia and other parts of the world, it is 144.80 MHz.
There is also some HF APRS activity, primarily around 10.151.51 MHz LSB (North America) and 14.105.51 MHz LSB (except in ITU Region 3).
For BBS, Packet Cluster, Networks and Packet Conversations:
In the US, most packet activity is found on the 2 meter band:
2 meters: Baud rate is typically 1200. he most common frequencies are 144.93, 145.01, 145.03, 145.05, 145.07, 145.09 and 145.53 MHz, but you may find it anywhere between 144.90-145.10 and between 145.50-145.80. The baud rate used is 1200.
1.25 meters (220 band): most packet heard in this band will be "backbone" traffic between network nodes and BBSs. It will not be an access band for users.
70 cm (440 band): The packet allocation for the band (mixed mode segment) is 432.10-432.30 and 432.40-433.00. Packet should not be used below 432.00. By local option, packet could also be used from 442.000 to 445.950 and 446.100 to 448.000. Baud rate may be 9600 or 1200.
For HF Packet:
HF BBS: In North America, you can find the "Network 105" BBS on 14.105 MHz LSB. Baud rate is 300.
HF Conversations:
Band Suggested Frequencies - all LSB / Lower Side Band*
(channel centers = RF between the 2 tones)
80 3580-3635, priority at 3620-3635
40 7035-7050Packet Radio
For APRS packet activity:
In the US and some other countries, the primary nationwide APRS frequency is 144.39 MHz. In Europe, Australia and other parts of the world, it is 144.80 MHz.
There is also some HF APRS activity, primarily around 10.151.51 MHz LSB (North America) and 14.105.51 MHz LSB (except in ITU Region 3).
For BBS, Packet Cluster, Networks and Packet Conversations:
In the US, most packet activity is found on the 2 meter band:
2 meters: Baud rate is typically 1200. he most common frequencies are 144.93, 145.01, 145.03, 145.05, 145.07, 145.09 and 145.53 MHz, but you may find it anywhere between 144.90-145.10 and between 145.50-145.80. The baud rate used is 1200.
1.25 meters (220 band): most packet heard in this band will be "backbone" traffic between network nodes and BBSs. It will not be an access band for users.
70 cm (440 band): The packet allocation for the band (mixed mode segment) is 432.10-432.30 and 432.40-433.00. Packet should not be used below 432.00. By local option, packet could also be used from 442.000 to 445.950 and 446.100 to 448.000. Baud rate may be 9600 or 1200.
For HF Packet:
HF BBS: In North America, you can find the "Network 105" BBS on 14.105 MHz LSB. Baud rate is 300.
HF Conversations:
Band Suggested Frequencies - all LSB / Lower Side Band*
(channel centers = RF between the 2 tones)
80 3580-3635, priority at 3620-3635
40 7035-7050, priority at 7040-7050 and 7100-7120 with Americas
30 10.130-10.150, priority at 10.140-10.150
20 14.070-14.112, except 14.100 (beacons); priority at 14.095-14.0995
17 18.100-18.110, priority 18.104-18.110
15 21.070-21.125, priority 21.090-21.125
12 24.920-24.930, priority 24.925-24.930
10 28.070-28.189, priority 28.120-28.189
- AGWPE tones have a center frequency of 2210 Hz, so for LSB you would set your radio dial + 2210 Hz higher than the frequencies listed above. (For LSB, remember that the greater the frequency shift, the lower the resulting LSB frequency.) priority at 7040-7050 and 7100-7120 with Americas
30 10.130-10.150, priority at 10.140-10.150
20 14.070-14.112, except 14.100 (beacons); priority at 14.095-14.0995
17 18.100-18.110, priority 18.104-18.110
15 21.070-21.125, priority 21.090-21.125
12 24.920-24.930, priority 24.925-24.930
10 28.070-28.189, priority 28.120-28.189
- AGWPE tones have a center frequency of 2210 Hz, so for LSB you would set your radio dial + 2210 Hz higher than the frequencies listed above. (For LSB, remember that the greater the frequency shift, the lower the resulting LSB frequency.) priority at 3620-3635
40 |7035-7050, priority at 7040-7050 and 7100-7120 with Americas
30 |10.130-10.150, priority at 10.140-10.150
20 |14.070-14.112, except 14.100 (beacons); priority at 14.095-14.0995
17 |18.100-18.110, priority 18.104-18.110
15 |21.070-21.125, priority 21.090-21.125
12 |24.920-24.930, priority 24.925-24.930
10 |28.070-28.189, priority 28.120-28.189||
- AGWPE tones have a center frequency of 2210 Hz, so for LSB you would set your radio dial + 2210 Hz higher than the frequencies listed above. (For LSB, remember that the greater the frequency shift, the lower the resulting LSB frequency.)