[K4RY] APRS Station update..

[Kris Kirby]

Another issue that may crop up is that various TNCs had issues driving
various radios. I think the Motorola Mitrek had a low input impedance, or
the output impedance of the TNC wasn't low enough to drive it.

If all else fails, try a 600-ohm to 600-ohm transformer or a 4K:1K.

On Fri, Mar 9, 2012 at 6:27 PM, Mike Watkins <WATKIJM at auburn.edu> wrote:

>  It was a couple of things, First we took the cover off of the TNC and
> jumpered the receive audio from 4.5mV to
> 25mV. That helped hear packets. Then in station set up, we added WIDE2-2.
> We made sure the TX Delay
> was correct (30ms for an Alinco radio which it was already set for that),
> We installed Afilter so it only overlays
> stations within 200 miles (it's adjustable in the Afilter settings) and we
> just receive levels and checked to make
> sure that RF-to-Internet on the IGATE was checked and Internet-to-RF was
> unchecked (your concern that I
> share with you).
>
>  I didn't check the antenna SWR. My Yagi is pointed directly 270 degrees
> to receive the KE4LTT-2 digipeater
> at full scale. I ping K4RY via KE4LTT-2. I heard K4RY beacon once while I
> was looking at the rig's S-meter.
> I got it half-scale considering that I have a Yagi pointed 130 degrees
> away from it (270 vs. 040).
>
>  So..the think to do now is just watch it. I came home today and my
> station has been getting the K4RY
> beacon. I just got it again 6 minutes ago. If someone would post what the
> IGATE traffic log,
> that will say how much traffic you are passing to the server.
>
>  Respectfully,
> Mike
> WX4AL
>
>
>  ------------------------------
> *From:* John Klingelhoeffer [wb4lnm at aol.com]
> *Sent:* Friday, March 09, 2012 2:18 PM
> *To:* Mike Watkins; K4RY at eng.auburn.edu
> *Subject:* Re: [K4RY] APRS Station update..
>
>   Glad to hear it is working.  What was wrong so we can learn from the
> corrections?
>
>  I don't ever remember seeing a KPC-3+ in Broun 411.  I think I had to
> fix some of the wiring on the  current interface cables a while back for
> workmanship, but it was certainly to a KPC-2, not a -3+.
>
>  I would very much doubt that the AHAB effort would have the KPC-3+ that
> you mention - there would not have been a need.  AHAB has been pretty much
> swimming in KPC-3+'s for the ground stations since most of the airborne
> units have gone to self-contained beacons or Tiny-TNCs which are
> significantly smaller and more power-efficient.
>
>  I do seem to remember something changing about the server around that
> time driven by engineering IT, but I was not involved with it.  If Jimmy
> Hicks is monitoring here, he may remember something about that.  Jimmy was
> club president when I moved here late summer of 2008, prior to Stephen Ritz
> moving into that role.
>
>  We all appreciate your help.  I guess I have to get my Tiny-TNC car
> tracker put back in the car.
>
>  John...
> WB4LNM
>
> -----Original Message-----
> From: Mike Watkins <WATKIJM at auburn.edu>
> To: K4RY <K4RY at eng.auburn.edu>
> Sent: Fri, Mar 9, 2012 1:09 pm
> Subject: [K4RY] APRS Station update..
>
>  Greetings,
>
> Kyle and I spent some time going over the APRS set up. My home station
> answered a ping
> request from the K4RY station and last night when I got home, I got a
> message from Kyle
> sent via APRS on the RF Side. I was also able to ping K4RY from home by
> using the
> KE4LTT-2 Digi  25 miles to the west.  K4RY is also now beaconing it’s
> status on the
> RF Side.   More testing and evaluation to follow. So far, so good.
>
> I also donated my old KPC-2 to the club. It’s on the shelf.  It was
> working the last time
> that I tried it. I recall that I recovered a Kantronics KPC-3+ when I
> recovered the club
> equipment that was stolen. All I see now in the shack is an older
> Kantronics KPC-2.
> I was surprised to not see the KPC-3+ in the shack. Anybody, past or
> present, know what
> happened to it? Is it being used by the balloon team?
>
> Additionally, the K4RY archives for this listserver is missing all of its
> achives from 2000-
> 2008. Did a server get swapped out?
>
> Respectfully,
> Mike
> WX4AL
>
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-- 
Kris Kirby, KE4AHR  <kris.kirby at gmail.com>
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