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To : PSK31@WW.SYD.NSW.AUS.OC
De: Psk31 Digest <owner-psk31@aintel.bi.ehu.es>
Para: <psk31-digest@bipt106.bi.ehu.es>
Asunto: Psk31 Digest V1 #290
Fecha: lunes 17 de enero de 2000 4:20
Psk31 Digest Monday, January 17 2000 Volume 01 : Number 290
In this issue:
Re: [psk31] Attenuation
[psk31] Sample Rate??
[psk31] PSK DX Calling freq ?
See the end of the digest for information about psk31-digest
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Date: Sun, 16 Jan 2000 07:50:01 -0500
From: Charles Greene <cgreene@loa.com>
Subject: Re: [psk31] Attenuation
At 03:29 PM 1/15/00 +0000, iain.kelly wrote:
>Hello all. I need some advice.
>I have been following the PTT debate and have already got a single
>transistor interface made and ready to work. I have just got an audio feed
>from soundcard out into mic. in on the rig. (don't worry I have not used it)
>I have heard that some attenuation is needed but need to know how
>much and what resistors etc. I need to find and how to put them in the audio
>line.
Iain,
I used a fixed attenuator for awhile. I started with 10K in series with the
output from the sound card and 1K in parallel with the mike input.
It's going to vary with whether you use the mike input or an AF input on
the rear panel with less gain. I was trying to use my VOX through my mike
input, and that was too much attenuation, so with a resistor substitution box,
I ended up with 6.8K and 1K. I had mixed results with that, so I went to
a 50K pot, so I could adjust it. The circuit in May 99 QST uses a 50K
pot, and that works well. I use the 50K pot and PTT now.
____________
Try PSK31. Check: http://aintel.bi.ehu.es/psk31.html
and May 99 QST. K2 S/N 462.
Chas, W1CG
Rhode Island TCPIP Address Coordinator
w1cg@arrl.net
_____________
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Date: Sun, 16 Jan 2000 10:19:13 -0500
From: Jim Sutton <jsutton@erols.com>
Subject: [psk31] Sample Rate??
Just getting started on the receive side of WinPSK and I find it a great
program. However there is on strange thing happening.
When I start the program all is fine.
If I close the program and restart -- a message comes up saying:
"??? Maybe input is being used at a different Sample Rate."
Only by rebooting the computer can I then get the program to work.
Any ideas will be welcome.
Thanks
73/Jim/AC4CZ
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Date: Sun, 16 Jan 2000 16:14:29 -0500
From: "Andrew J. O'Brien" <obrienaj@netsync.net>
Subject: [psk31] PSK DX Calling freq ?
I wonder if there is , if not... perhaps there should be , a DX calling freq
for the PSK31 20 band segment ?
I enjoy a QSO with North Americans but every now and then would like to look
for DX.
Andy.
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End of Psk31 Digest V1 #290
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