The New n-N Paradigm

Fixing the APRS Network (USA)

  • Fixing the APRS Network

    The APRS network in some parts of the USA suffer from major congestion.This is mainly due to the nature of the original design of the APRS network combined with a dupe check issue found in stand alone KPC3's (apparently). Bob Bruninga has tweaked this design to reduce the number of packets which are created when a station transmits a beacon or other UI packet

    This is a problem which is fairly unique to the USA but from an academic stand point here is how we could implement it

    This page is now going to concentrate on the major concepts of the new design for further information take a look at Bob's page on the subject

  • Alias RELAY to WIDE1-1

    In your digi set-up replace RELAY with WIDE1-1 the purpose of this it to allow the WIDEn-n duplicate suppression to kick in.

  • TRACEn-n to SSSn-n

    TRACEn-n aka UIFLOOD functionality should be modified to break the APRS network into area sections.

    This can be done by setting SSS to your ITU Country Code this means users with an unproto (as an example) of APRS,GBR7-7 would only be digi'ed inside the UK

    In the USA because the country is noteably large they have chosen to set SSS to the state code (for example MI for Michigan)

  • Unproto Paths

    Ok now the network has been reconfigured users need to update there unproto settings. For areas which have implemented the new n-N paradigm hear are some examples of possible unproto's

    APRS,WIDE2-2 (Home use)

    APRS,WIDE1-1,WIDE2-1 (Mobile use)

    APRS,GBR3-3 (Area specific)

  • Configuring UI-View32

    The following form will auto generate a config which can be used as a replacement for [DIGI_OPTIONS] section in the uiview32.ini file C:\Program Files\Peak Systems\UI-View32\UIView32.INI

    Callsign
    Country
    Submit
    Configuration
    Status

  • Unproto Address

    Home Stations
    APRS,WIDE2-2
    Mobiles
    WIDE1-1,WIDE2-1
    IGATEs
    APRS,WIDE1-1