IARU Region 1 - APRS FrequenciesAPRS = Automatic Packet Reporting SystemFrequency [MHz]
| Maximum Bandwidth (-6 dB)
| MODE
| USAGE
| | 144.800 | 12 kHz
| MGM (h)
| APRS
| 432.500
| 12 kHz
| ALL MODE
| APRS |
Footnote:
h.Network stations shall only operate in the part of the 145 MHz band allocated to Digital Communications and will be permitted only for a limited time. Such network stations should also have access ports on other VHF/UHF or Microwave bands and should not use the 145 MHz band to forward traffic to other network stations. In view of the time limitation the set-up of new network stations is not encouraged (De Haan, 1993).
Unmanned packet radio stations are only allowed in the segment 144.800 - 144.990 MHz. Outside of this segment the signal level produced by those stations shall be not larger than 60 dB below the carrier level (measured in a 12 kHz bandwidth). Any other unmanned packet radio and digital access points must cease operation not later than 31 December 1997.(Tel Aviv 1996).
7.11.3 CONCERNING GUIDELINES FOR APRSBased on Cavtat 2008 recommendation CT08_C5_Rec13, IARU Region-1 is to adopt the APRS “New n-N Paradigm”, as published by WB4APR
By simplifying the network to only accept “WIDEn-N”, and telling users to limit their “N's” to the minimum needed for their own area, a vast improvement in reliability and throughput will be achieved in a common IARU, Region 1 APRS System, and beyond.
ON6TI is to draw up a form of words that will detail this further in a future edition of the VHF Managers’ Handbook
Table is created by 9A6AIB using data source: VHF MANAGER HANDBOOK - IARU Region 1 - Version 5.40 (25. July 2009.)
Copyright (c) 2009-2014. by 9A6AIB
Last update: 2009-12-12 |
|