Terry, Yea I should have known that speaker out of the computer is probably line out cause you need amplified speakers in most cases. I will look for IQout and try that. Thanks for the reply
Mike WA3O --- Terry <[EMAIL PROTECTED]> wrote: > --- In [email protected], MIke mustang > <[EMAIL PROTECTED]> wrote: > > > > Hey Guys, > > I have just finished up my TX/RX Softrock for > 80/40 > > and it receives great on both bands but, now I > want to > > test the TX. I have hooked 12v to PTT_I and it > mutes > > the RX and I see ~55mv on R31 and R32 (so far so > > good). My Sound card does not have a "line out"... > it > > only has mic in, line in, and speaker out. Do I > need > > to get a second card with line out to test this? > or > > can I hook up speaker out turned WAY down or > possibly > > a mp3 player down? I wanted to buy a E-mu 0202 but > > can't tell if that has an line input/line output > > > > Thanks > > Mike WA3O > > > > > > Mike: > You can probably use the speaker out, and most > likely won't even need > to turn the volume down much. Most speaker outs are > not really meant > to drives the speakers themselves directly, rather > the level is set > to drive comptuer speakers with amplifiers in them. > They are usually > very close to line outs. > > This is especially true if the computer is not a > laptop, which I am > assuming, since you said "sound card". > > The other issue is that Rocky doesn't like to use > the same audio > output for both receive audio to speakers and the Tx > audio/IF signal > to the RxTx. So, that could be an issue. There are > I/Q test signal > generator software programs somewhere that you could > use for > testing. One is called IQout, I think. All my > computers except this > email one are down right now, being moved around the > shack. > > Anyway, try the speaker output, with the RxTx into a > dummy load. > Terry > WB4JFI > > >
