[aprssig] New IGate Operator

Jim Conrad jjc at oceanviewcom.com
Tue Jan 3 08:52:38 CST 2017


Hi Pete,

Thanks for the response. I understand the issue on saturation. I have 
set it up to only gate positions and with limitations. My thought 
process is that positions no matter the source of actual hams (not 
objects) should be reflected on RF which provides a coherent picture 
for the RF stations. At present there are only a few stations in my 
area using TCPIP. It also appears I am the only IGATE for a fairly 
large area. I monitor the RF side to make sure there is not any 
saturation (from my IGATE anyway).

The Microsat WX3in1 has settings to prevent such issues. It is quite 
a well thought out device The default setup is as follows;

APRS-IS to RF:
WIDE2-1
Gate if source station heard by heard via RF - No
RF Heard Buffer timeout 60min
Maximum packets per 1 min: 6
Maximum packets per 2 min: 9
Maximum packets per 3 min: 12

73
..Jim - N4WFP

At 06:11 AM 1/3/2017, Pete Loveall AE5PL Lists wrote:
>Hi Jim,
>
>I highly recommend against this!  I monitor stations that beacon 
>multiple times per minute (which would saturate an RF frequency at 
>1200 bps when converted to 3rd party format) and they are almost 
>entirely poorly configured "i-Devices and Android" apps (I have seen 
>Android apps beaconing every second!).  Also, many packets from 
>Internet-connected stations may be other IGates or Internet clients 
>-not- desiring to be fully gated to RF by your IGate.  You will see 
>that this was discouraged many years ago and most IGate software 
>does -not- allow gating based on position and originating on APRS-IS 
>because of these facts (it is up to the IGate sysop to regulate 
>their radio, not the software authors who are trying to write universal code).
>
>Have fun and remember, the more you saturate your RF frequency, the 
>less usable it becomes for true communications by people on RF (read 
>threads about congestion on RF and collisions).
>
>73,
>
>Pete Loveall AE5PL
>pete at ae5pl dot net
>
> > -----Original Message-----
> > From: Jim Conrad
> > Sent: Tuesday, January 03, 2017 4:46 AM
> > Subject: [aprssig] New IGate Operator
> >
> > I have read most of the various articles on IGATE operation and
> > understand the importance of proper IS>RF gating. I'm trying to get
> > the gate to forward the local TCPIP based position packets of the
> > hams in the area using I-Devices and Android to RF. So far I have
> > been unsuccessful.
> >
> > Any help would be appreciated. Also comments or concerns noted would
> > also be appreciated.
> >
> > Thanks,
> > 73's
> > Jim - N4WFP
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