Here again is an issue where the output of the sound card is simply too high
to deal with correctly. Hence the settings are "very touchy" which means
that they are most likely at the bottom of their range. A 1:1 isolation
xfmr in the TX audio line is probably OK but I suggest adding a 20 dB
resistive pad between the soundcard output and the radio input. Preferably
between the transformer and the radio so that any humm induced in the
transformer will be attenuated by 20 dB as well. Using that, the sound card
levels can be adjusted upward and thus the s/n ratio will be preserved.
I've always used VOX with no problems at all. Most likely the ills are
caused by the audio level not being correct and likely overdriving the VOX
amp.
73
Bob, K4TAX
----- Original Message -----
From: "Winston F Jones" <winjones@ix.netcom.com>
To: "Bill Fulling" <w4njf@email.midflorida.com>; <tentec@contesting.com>
Sent: Saturday, April 05, 2003 7:57 PM
Subject: Re: [TenTec] Jupiter & PSK31
> I have run my Jupiter on PSK-31 without any type interface, using VOX.
> However, it's been awhile and I can't recall my VOX settings.
> 73, Winston K4CWQ
>
> ----- Original Message -----
> From: "Bill Fulling" <w4njf@midflorida.com>
> To: <tentec@contesting.com>
> Sent: Saturday, April 05, 2003 19:39 PM
> Subject: Re: [TenTec] Jupiter & PSK31
>
>
> > Hell oKen,
> > I run my Jupiter on PSK-31 w/o any interface except a "rat shack" 1:1
> > isolation xfmr in the xmit audio line.The sound card settings can be
very
> > touchy,and I highly recommend that you use a Heathkit monitor scope (eg
> > HO-10 or SB-610) set them up.Using VOX is a real pain in the butt,but my
> > program (WinPSKse) does not allow direct PTT keying-while in Peg
emulation
> > mode.If you use the Jupe as a straight Jupiter,direct PTT keying is
> possible
> > if you use the hombrew interface shown on pg 2-6 of theARRL's HF Digital
> > handbook. Try it and see-the parts cost about $5.00 at the Shack.
> > 73 de Bill W4NJF
> >
> > Bill Fulling
> > w4njf@email.midflorida.com
> > ----- Original Message -----
> > From: "Ken Kirkley" <no4d@charter.net>
> > To: <TenTec@contesting.com>
> > Sent: Saturday, April 05, 2003 5:11 PM
> > Subject: [TenTec] Jupiter & PSK31
> >
> >
> > Anyone out there running their Jupiter on PSK31 without the use of a TNC
> or
> > Rigblaster? Is it possible to run it on VOX as we do the Argonaut V? If
> so,
> > what are your VOX settings?
> >
> > 73 & God Bless,
> > Ken/NO4D
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> >
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
>
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