[karc] Re: Technical help needed
- From: Max Donoghue <ve3tmt@xxxxxxxx>
- To: karc@xxxxxxxxxxxxx
- Date: Thu, 1 Oct 2009 19:34:57 -0700 (PDT)
It is very simple,.
The audio output from the 570 can be fed to the mic input or line input on the
sound card. If you feed the audio from the headphone or external speaker jack
on the 570, the output level is controlled by the volume control on the radio.
If you feed it from pi 3 (signal) and pin 4 (gnd) on the 13 pin ACCY jack on
the back of the radio, you get a constant level output unaffected by the volume
control. This is the best way to do it.
Once you feed the audio into the sound card, it is simply a matter of adjusting
the input level by adjusting the appropriate slider on the "recording" tab, and
then adjusting slider for the proper output level to the headphones. You have
to make sure the "playback" slider you sleect matches the same one used for the
input, either "mic in" or "line in".
Max
VE3TMT
________________________________
From: Steve Cutway <ve3kc@xxxxxxxxx>
To: karc@xxxxxxxxxxxxx
Sent: Thursday, October 1, 2009 10:15:03 PM
Subject: [karc] Re: Technical help needed
Hi Peter:
It's interesting how the obvious solution can escape one. I just connected the
output of my 570 to the input of my computer's sound card and it works fine. I
then connected my headphones to the sound card's output and have the precise
setup I was looking for. I can control the audio level from both the radio and
the computer. I wondered if I might hear unwanted audio from the transmitter
but I'm not.
Thanks to everyone for your help. And Rob, I sent my reply to your note before
I'd read Peter's and Herman's notes. It's a bad habit I've always had - to
reply to notes as I see them rather than to read all incoming e-mail first. :-)
Cheers & 73s,
Steve VE3KC
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