I run SBDVP with TR just fine without special boxes and without
isolating transformers. I do have to be a little careful how I route
the audio leads though. Mike to Mic IN (not Line In as I discovered
half way through a contest) and Line Out to rig.
73 de Jim Smith VE7FO
Pete Smith wrote:
>
> I agree with Barry on this, though there's some question whether you
> need the rigBlaster if you invest in a couple of isolation
> transformers and cable the computer directly to the radio or SO2R
> box. The main utility of the RigBlaster, IMO, is to let people use
> serial port PTT control; if you already have a PTT interface for
> TRLog, SBDVP lets you use it directly, with no additional hardware
> required.
>
> Incidentally, quite by accident I found out that for SBDVP not all
> sound cards are created equal, even if they both say they are SB-16s.
> The SB-16 ISA card in one of my computers has quite a bit of white
> noise on the microphone input, while the other one (which I plan to
> dedicate to use with TR) has on-board SB-16 audio and the mike input
> has no audible background noise. The audio quality of messages
> recorded with it is indistingishable from live, to my ear at least.
>
>
> 73, Pete N4ZR
>
> Check out the World HF
> Contest Station Database at
> www.pvrc.org
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