[amsat-bb] Re: AO27/TS2000

Bruce Robertson ve9qrp at gmail.com
Sat Jul 31 13:11:54 PDT 2010

To improve the birdie issue on the TS-2000, be sure to keep your
antennas well away from the radio. I found the birdie less serious
recently, now that my antennas are 100' away.

73, Bruce

On Sat, Jul 31, 2010 at 4:28 PM, i8cvs <domenico.i8cvs at tin.it> wrote:
> ----- Original Message -----
> From: <wa4hfn at comcast.net>
> To: "AMSAT" <amsat-bb at amsat.org>
> Sent: Saturday, July 31, 2010 8:45 PM
> Subject: [amsat-bb] AO27/TS2000
>> Just installed a preamp Ar2 { Advance Reciever Research) M# MSP432DG-160
> and the birdy that the TS2000 has on AO27 recieve is now gone and I was able
> to hear the bird from start of the pass to the end.Why ,I do not know, but
> the preamp seems to kill the birdy . Has anyone found this to be the same.
>> WA4HFN Damon
>> _______________________________________________
> Hi Damon, WA4HFN
> The pramplifier "seems" to kill the birdy because the preamplifier gain is
> very high and so the birdy is belove the noise introduced by the
> preamplifier itself.
> I guess that without any signal on the band your S meter reading is well
> above S-9 only because of the preamplifier noise that is apparently killing
> the birdy.
> If you reduce the gain of your preamplifier to get an S-meter reading of say
> S-1 or S-2 without any signal on the band then the birdy will appear again.
> Best 73" de
> i8CVS Domenico
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