[aprssig] -IS to RF Igating (was: APRS on Android)

Eric Lorenz K9LGE k9lge at emlorenz.com
Mon Jan 24 17:07:45 EST 2011

Hi Lynn:

I run under K9LGE-10 on my Droid X.

The only other drawback is since data and phone cannnot run at the same 
time, I have to re-enable APRSDroid after I get a call (unless I have 
something set incorrectly and it is supposed to do it automatically). 
So, when I am on the phone a lot in the car, I won't run it.

(The other was a failed experiment to setup a local fill-in 
digi...discovered there *was* another digi in the area so mine didn't 
seem to be needed).

A little background...I travel over a lot of the midwest, primarily 
between IL and WI and MN. I have been told that because of the amount of 
APRS traffic on the network in WI, I probably would have next to no luck 
in asking ops to reverse Igate...so I guess I will have to save my 
nickels for a better radio-based APRS-solution. My current setup uses a 
Kenwood TM-251A fed from a Garmin eTrex via a KPC-3. I would prefer to 
have this to use for a digi, or for packet use, but It's all I have 
right now. I was trying APRSDroid to avoid having to run both radios in 
my van while I am traveling.

On 01/24/2011 03:38 PM, Lynn W. Deffenbaugh (Mr) wrote:
> I'm not familiar with all of the IGate software out there and can only 
> speak for my own APRSISCE/32 which currently only supports gating 
> messages for recently heard local stations from -IS to RF.  I do plan 
> to implement filtered additional gating with both burst (per minute) 
> and sustained (per 10 minutes) throttle limits   I'm even considering 
> a per-callsign throttle limit per minute so as to limit those stations 
> that mis-configure an APRS-IS-only application to beacon every 10 
> seconds.  The filters will also hopefully allow selection of packet 
> types that will be gated, but I haven't really gotten down to that 
> detail in my design yet.  But no matter what I end up implementing, it 
> would still be up to the IGate operator to specify the filter and 
> adjust the limits as s/he sees fit.
> Others will have to weigh in on what their preferred IGate software 
> supports as far as additional -IS to RF IGate configurations and imits.
> What callsign do you operate your iPhone under?  I checked aprs.fi for 
> K9LGE and only found a digipeater last heard in July of 2010.
> Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
> Eric Lorenz K9LGE wrote:
>> 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?
>> Thanks,
>> Eric K9LGE
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Eric Lorenz K9LGE
Communications Trailer Coordinator
Disaster Services Technology
American Red Cross of Greater Chicago
630-430-2421 cell

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