[TenTec] PSK and Argo V help?

Mon Oct 6 18:47:40 EDT 2003

Rick, OK I understand.  However, your statement in this response says the
AUX1 jack accepts 2 V P-P, then you stated that the sound card level is near
minimum.  This raises the question "are you using the sound card line output
to AUX1 or speaker output to AUX1?"  Big difference in levels between the
two.

Secondly, is the 150 mV P-P out of the Argo going into the sound card line
input or mike input?  Again, big difference in level requirements.

Remember the best choice is always "line to line" and "mike to mike" for
signal levels.  Never switch the two, line to mike,  as some form of
attenuation will be required to maintain correct S/N ratio

73
Bob, K4TAX

----- Original Message -----
From: "Rick Williams" <rick.williams at telus.net>
To: "TenTec E-mail" <TenTec at contesting.com>
Sent: Sunday, October 05, 2003 11:13 PM
Subject: Re: [TenTec] PSK and Argo V help?

> Bob according to the Argo V manual it is sound card ready and the AUX1
jack
> "nominal line input level for full SSB RF output is 2 volts peak-to-peak
> into 600 ohms.  The nominal line output level is 150 mV p-p in 600 ohms,
and
> is independent of the AF control setting on the front panel."
>
> I am accessing the rig using the Ten-Tec Aux1 to sound card interface
cable
> rather than the mic jack.  This AUX1 circuit bypasses the 1st mic
amplifier
> and has approximately 20 dB less gain than the mic input.  So it should be
> ready for PSK from a line level source.
>
> 73,
>
> Rick
> VE7ASR
>
> Web site:  http://www3.telus.net/ve7asr
>
>
>
>
> > Date: Sun, 05 Oct 2003 21:39:54 -0500
> > From: Robert & Linda McGraw K4TAX <RMcGraw at Blomand.Net>
> > To: tentec at contesting.com
> > Subject: Re: [TenTec] PSK and Argo V help?
> > Message-ID: <005a01c38bb3$1fad16f0$c1b34ace at s0024901093>
> > References: <000001c38b9c$49cd3490$0b42b440 at ricksjunk>
> > Content-Type: text/plain; charset=iso-8859-1
> > MIME-Version: 1.0
> > Content-Transfer-Encoding: 7bit
> > Precedence: list
> > Reply-To: tentec at contesting.com
> > Message: 8
> >
> > The sound card is line output level and the Argo V has a mic input
level.
> > There is typically some 30 to 40 dB difference between the two.  A pad
is
> > required to maintain signal-to-noise ratio and thus operate both the
sound
> > card and the Argo V at the correct levels.  Just turning the level down
> > won't get it.
> >
> > 73
> > Bob, K4TAX
> >
> >
> > ----- Original Message -----
> > From: "Rick Williams" <rick.williams at telus.net>
> > To: <tentec at contesting.com>
> > Cc: "'James E McClellan'" <n8luv_jm at juno.com>
> > Sent: Sunday, October 05, 2003 6:56 PM
> > Subject: RE: [TenTec] PSK and Argo V help?
> >
> >
> > Thanks to all for the assistance.
> >
> > I played with the VOX settings but finally broke down and raided the
junk
> > box.  I've built up a little transistorized PTT switch that the software
> > triggers quite nicely.
> >
> > I'm running the audio from the sound card at a near minimum and it still
> > triggers the ALC so I may need to pad that input.  I'll try a couple of
> QSOs
> > and see how it goes.
> >
> > Thanks again to all on the reflector for the assistance.
> >
> > 73,
> >
> > Rick
> > VE7ASR
> >
> > Web site:  http://www3.telus.net/ve7asr
> >
> >
> > > -----Original Message-----
> > > From: James E McClellan [mailto:n8luv_jm at juno.com]
> > > Sent: October 5, 2003 06:41
> > > To: tentec at contesting.com; rick.williams at telus.net
> > > Cc: n8luv_jm at juno.com
> > > Subject: Re: [TenTec] PSK and Argo V help?
> > >
> > >
> > > Good Morning Rick,
> > >
> > > I have the Argonaut-V and use MixW ver-2.09 with it. I now
> > > have over 80
> > > QSOs on PSK-31 and more with the other digital modes. I have
> > > even got a
> > > confirmed SSTV from Poland and Checheslovlkia! --- I use the
> > > VOX method
> > > and it works flawless. The settings for the VoX I use are as follows:
> > >
> > > Gain ------ 9
> > > Antivox --- 0
> > > Hangtime - 1
> > >
> > > You do not need the Antivox since you are not on a mic. One
> > > warning. Make
> > > sure you have the soundboard output turned down to the point
> > > where there
> > > is NO AGC FLICKER on the Argonaut-V. The green AGC indicator
> > > should never
> > > glow at all! If it begins to glow the PSK-31 signal will be
> > > distorted and
> > > you will not be able to acheive the necessary IMD of around
> > > -20 to -25.
> > > If the AGC begins to glow your IMD will be about a -10 to -15. This
> > > setting does create distortion and excessive band width for
> > > PSK-31 and it
> > > can be seen on the waterfalls as tiny spikes on the edges.
> > >
> > > Hope this helps Rick and good PSK-31 to you!
> > >
> > > Sincerely,
> > >
> > > Jim McClellan --- N8LUV
> > >
> > > ==============================================================
> > > ===========
> > > =======================
> > > On Sat, 4 Oct 2003 22:28:21 -0700 "Rick Williams"
> > > <rick.williams at telus.net> writes:
> > > > I'm attempting to get my Argo V on the air with PSK31.  I have
> > > > connected the
> > > > Auxiliary cable to the sound card and I'm copying PSK without
> > > > difficulty.  I
> > > > also have the rig connected to the PC via a serial cable (COM3).
> > > >
> > > > My problem is getting the PTT to function using the serial RTS/DTR
> > > > mode.
> > > > The software indicates that the appropriate tones are being
> > > > generated but
> > > > there's no RF unless I manually hit my foot switch and activate the
> > > > PTT.
> > > > The software (PSK31 Deluxe) is set for PTT via the COM3 RTS/DTR
> > > > lines.
> > > >
> > > > I've tried the VOX route but I haven't found the settings
> > > that avoid
> > > > a
> > > > "choppy" signal.
> > > >
> > > > Any insight would be appreciated.  Thanks.
> > > >
> > > > 73,
> > > >
> > > > Rick
> > > > VE7ASR
> > > >
> > > > Web site:  http://www3.telus.net/ve7asr
>
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