[aprssig] APRS on Android

Eric Lorenz K9LGE k9lge at emlorenz.com
Mon Jan 24 16:25:20 EST 2011

Thanks Lynn...that is what I was trying to say. In addition to 
that...for other mobile users...doesn't do much good to put contact 
freq, etc. into my beacon if they aren't going to see it. Can reverse 
gating be done with filters, rules, etc. to only gate certain traffic as 
to not overload the bandwidth?

Eric K9LGE

Eric Lorenz K9LGE
Communications Trailer Coordinator
Disaster Services Technology
American Red Cross of Greater Chicago
630-430-2421 cell

On 01/24/2011 02:03 PM, Lynn W. Deffenbaugh (Mr) wrote:
> Be that as it may, the original poster was wishing for "more igates 
> and such ported TCP packets back to local radio." because "I have 
> several friends in areas I travel that cannot see me when I am 
> beaconing as they use radio to monitor local APRS traffic and their 
> local I-gates/digis only port RF to the internet, not the other way.".
> So, the question wasn't about how much you can put out on a 9600 baud 
> dedicated channel, the wish was for -IS to RF traffic onto the channel 
> his friends would be monitoring which in all probability is 144.390, 
> the shared APRS frequency in North America given that K9LGE is located 
> just west of Chicago, IL, USA.
> Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
> Andre v Schaijk wrote:
>> I did a test not to long ago reverse Igating.
>> on a dedicated 9k6 channel it is very realistic to stream a 500 km 
>> range in europe and still only use about 50% or less of channel time, 
>> because it was a dedicated frequentie there was no aloha effect or 
>> slottime and txdelay problem, this improved efficency a great deal.
>> Andre PE1RDW
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