[Elecraft] P3 SVGA RTTY decode question

[Richard Fjeld]

Hisashi,

I'd like to know if you experience the dropped characters on receive, or 
during
transmit?  You show it as a RTTY decode question, but is that specific?

Read my  previous post carefully.  I am also describing a similar thing 
during transmit. Paul has been
working on it.  I'd like to see this get fixed.

I'm sure if everyone using a keyboard will report their experience, we can 
establish if it is a hardware problem for a few,
or something common to all.  I bought the SVGA option when I learned of it 
accepting a keyboard. It hasn't been dependable for use.

Dick, n0ce


-----Original Message----- 
From: Hisashi T Fujinaka
Sent: Tuesday, August 27, 2013 12:44 PM
To: Richard Fjeld
Cc: elecraft posting
Subject: RE: [Elecraft] P3 SVGA RTTY decode question

Sorry, I guess my frustration is with the limited documentation on the
P3 SVGA. Twice I thought it was defective but it wasn't.

So far I've found that the SVGA bias needs to be turned way down from
the default of 9.9 to 1.2-1.5, and that I'm losing simple serial data
from the K3 to the P3 SVGA on receive. I think this is a serial line
problem and Gary from Elecraft suggests turning down the rate from
38400.

Also, the USB keyboard I have (a Cooler Master I just got) doesn't
appear to work and I'm sure it's another problem on my side. Everything
else has been.

On Tue, 27 Aug 2013, Richard Fjeld wrote:

> Paul, and others,
> I think Hisashi is describing using RTTY what I have been talking about 
> using CW with a keyboard when I said that some
> characters (not elements of the characters) are being lost during 
> transmission.  They show on the monitor, but not on the P3 and
> are not being sent.
>
> At this point, I'm wondering if Hisashi is seeing this while transmitting? 
> or does he see it during receive?  If during receive,
> that would be a new problem.
>
> Dick, n0ce
>
>
> > Date: Tue, 27 Aug 2013 08:46:47 -0700
> > From: htodd at twofifty.com
> > To: k2mk at comcast.net
> > CC: elecraft at mailman.qth.net
> > Subject: Re: [Elecraft] P3 SVGA RTTY decode question
> >
> > Once again, I wonder if I'm being clear. THE TEXT ON THE P3 SVGA IS NOT
> > THE SAME AS ON THE K3. I'm not sure what the issue is.
> >
> > On Tue, 27 Aug 2013, Mike K2MK wrote:
> >
> > > Hi Hisashi,
> > >
> > > The P3/SVGA board is acting as a terminal. It does not do any 
> > > decoding. It
> > > just displays the decoding done by the K3. If you're missing 
> > > characters you
> > > may want to adjust the threshold on the K3. See the decode tips in the 
> > > K3
> > > manual on page 33.
> > >
> > > 73,
> > > Mike K2MK
> > >
> > >
> > > Hisashi T Fujinaka wrote
> > >> I was copying RTTY on my P3 SVGA and I found that it was dropping a 
> > >> lot
> > >> of characters. I finally figured out how to decode directly on the K3
> > >> and it wasn't dropping characters at all.
> > >>
> > >> Is there something I have set up incorrectly?
> > >>
> > >> Thanks.
> > >> Hisashi T Fujinaka
> > >
> > >
> > >
> > >
> > >
> > > --
> >
>
>

-- 
Hisashi T Fujinaka - htodd at twofifty.com
BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte