[CQ-Contest] Re: [ic756pro2] Interfacing IC756PROII to sound card

[Steve]

Thanks for the advice everyone. I think I'll look into a Rigblaster or 
similar gadget for the radio-to-computer-sound-card interface.

73,

Steve K8JQ

jdow wrote:

> 
> Unfortunately you MUST not connect a microphone to the MIC input unless
> you put the radio in DATA mode. And DATA mode has a limited bandwidth.
> A microphone on the MIC input will add noise to your ACC1 input in
> normal mode.
> {^_^}
> ----- Original Message -----
> From: "Keith LaBorde - K4KAL" <k4kal at arrl.net>
> To: <ic756pro2 at yahoogroups.com>
> Sent: 2004 November, 08, Monday 16:02
> Subject: Re: [ic756pro2] Interfacing IC756PROII to sound card
> 
> 
>  >
>  > Steve,
>  >
>  > I use the ACC1 for my sound card connection to run PSK, RTTY, and other
> digital modes.
>  > Don't see why you could not do voice the same way.
>  > I have recorded received SSB signals to a file and played them back, so
> that is close to what you are wanting to do.
>  > I am using the SignaLink SL-1 as my interface between radio and computer
> sound card.
>  > Be sure and use the mode USB-D or LSB-D, so your microphone jack is not
> picking up background.
>  >
>  > Keith, K4KAL
>  >
>  >   ----- Original Message -----
>  >   From: Steve
>  >   To: cq-contest at contesting.com ; ic756pro2 at yahoogroups.com
>  >   Sent: Monday, November 08, 2004 5:54 PM
>  >   Subject: [ic756pro2] Interfacing IC756PROII to sound card
>  >
>  >
>  >   A couple of questions for those of you who have interfaced an 
> IC756PROII
>  >   to a computer sound card. My goal is to be able to use pre-recorded wav
>  >   files as audio input to the transceiver. Contest software is N1MMLogger
>  >   and it will provide a PTT function via a pin on a serial port.
>  >
>  >   Is it ok to feed the audio out of the sound card speaker jack (it's
>  >   colored green on my Creative AudioPCI sound card) thru a low-to-high
>  >   impedance transformer to the IC756PROII ACC1 pin 4? I think a Radio
>  >   Shack 273-1380 transformer is 8 ohm to 1000 ohm, so that's what I'm
>  >   leaning toward.
>  >
>  >   The Icom manual identifies ACC1 pin 4 as "Modulator input" and further
>  >   specifies its input impedance as 10K and input level as approximately
>  >   100mV rms. How will the level provided by the sound card compare to 
> that
>  >     100mV rms spec? Any advice on how to match the hopefully higher sound
>  >   card level to ACC1 pin 4?
>  >
>  >   Is feeding the audio to the rig on ACC1 pin 4 just as good as the mic
>  >   input? Advantages or disadvantages one compared to the other for
> contesting?
>  >
>  >   What's a good way to make the connection to ACC1 pin 4? I already 
> have a
>  >   DIN plug in ACC1 which is cabled to a footswitch for PTT function.
>  >   Wonder if I should terminate the 8 pins of ACC1 on a terminal strip for
>  >   the sake of accessibility by footswitch, audio input and perhaps future
>  >   needs?
>  >
>  >   Thanks for the advice!!
>  >
>  >   Steve K8JQ
>  >
>  >
>  >         Yahoo! Groups Sponsor
>  >               ADVERTISEMENT
>  >
>  >
>  >
>  >
>  >
>  > 
> --------------------------------------------------------------------------
> ----
>  >   Yahoo! Groups Links
>  >
>  >     a.. To visit your group on the web, go to:
>  >     http://groups.yahoo.com/group/ic756pro2/
>  >
>  >     b.. To unsubscribe from this group, send an email to:
>  >     ic756pro2-unsubscribe at yahoogroups.com
>  >
>  >     c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of
> Service.
>  >
>  >
>  >
>  > [Non-text portions of this message have been removed]
>  >
>  >
>  >
>  >
>  >
>  > Yahoo! Groups Links
>  >
>  >
>  >
>  >
>  >
>  >
>  >
> 
> 
> 
> 
> 
> 
> *Yahoo! Groups Sponsor*
> ADVERTISEMENT
> click here 
> <http://us.ard.yahoo.com/SIG=1292b7p8f/M=294855.5468653.6549235.3001176/D=groups/S=1705063108:HM/EXP=1100105652/A=2376776/R=0/SIG=11ldm1jvc/*http://promotions.yahoo.com/ydomains2004/index.html>
> 
> 
> ------------------------------------------------------------------------
> *Yahoo! Groups Links*
> 
>     * To visit your group on the web, go to:
>       http://groups.yahoo.com/group/ic756pro2/
>        
>     * To unsubscribe from this group, send an email to:
>       ic756pro2-unsubscribe at yahoogroups.com
>       <mailto:ic756pro2-unsubscribe at yahoogroups.com?subject=Unsubscribe>
>        
>     * Your use of Yahoo! Groups is subject to the Yahoo! Terms of
>       Service <http://docs.yahoo.com/info/terms/>. 
> 
>