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Re: AO-51 digital help?



Hi Stephen,

Thanks for the reply.  The radio was in TNC mode, and the Palmtop makes an 
excellent portable terminal, so I should be ok there.  I don't have a preamp 
on the rig, but I figured that if others are working it with an Arrow 
antenna, I should be ok with mine.  Maybe not...

I just figured out that the TNC powers up with 1200 baud, and you change 
that from the TNC prompt not from the radio's menu (which is why I didn't 
find it...  RTFM!).  That surely was a problem.

Next pass worth trying is tonight...  I'll let you know what happens.

Greg  KO6TH


----Original Message Follows----
From: "Stephen Brown Jr" <stephen.brown75@gmail.com>
To: "Greg D." <ko6th_greg@hotmail.com>
CC: amsat-bb@amsat.org
Subject: Re: [amsat-bb] AO-51 digital help?
Date: Mon, 3 Jul 2006 15:54:06 -0400

Hi Greg,
     I'll try to help you here with what I know, as I have a similar setup.
First off, you have to have the radio in TNC mode, which if you got it
connected to your palmtop, you should already be in good shape with that.
You will also most likely need a pre-amp, I believe the xmitter on the bird
is only 300 mw. I had an 87 degree pass over me the other night and I
couldn't hear anything either, so a pre-amp would almost be a definite need
imo.

73,
Stephen
N1VLV


On 7/3/06, Greg D. <ko6th_greg@hotmail.com> wrote:
 >
 > Hi folks,
 >
 > With the day off today I thought I'd try my hand at the digital side of
 > AO-51.  Bottom line is that I need help...
 >
 > I have a new (to me) Kenwood TH-D7 hooked to my HP200lx palmtop (for a
 > serial console), and an 8 element Quagi antenna that I built some years
 > back.  There was a low but reasonable pass this morning, so I thought I'd
 > take the toys to the yard and see what I might get on the TNC display.  I
 > figured there'd be *somebody* doing something with the bird that I could
 > see.
 >
 > But, I got nothing.  I know I can't hear the 9600 signal, but the TNC
 > didn't
 > register anything.  Fortunately, none of the neighbors noticed what I was
 > doing.
 >
 > I have the Kenwood set in Packet mode on the "B" side of the rig, tuned 
to
 > 435.150 (and browsed +/- a bit for doppler).  It was a low pass, so I
 > figured 5 khz either side of center should be good enough.  The TNC 
didn't
 > seem to have any setting for baud rate, which surprised me.  Does it go 
by
 > the APRS setting?  If so, that's the problem; its at 1200.  I opened the
 > squelch, just to be sure.  Tried different settings for DCD, no change.
 >
 > What else do I need to do?
 >
 > Thanks,
 >
 > Greg  KO6TH
 > ----
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----
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