Message-ID: <000401c19de0$0e663920$1700a8c0@home>
From: "Dave Pick" <g3yxm@wireless.org.uk>
To: rsgb_lf_group@blacksheep.org
References: <000301c19ddb$131f46a0$a378073e@default>
Subject: LF: Re: Jason decode
Date: Tue, 15 Jan 2002 16:16:42 -0000
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Alan / Alberto.

Sounds like the same problem I had, what speed is your processor?
I have now had good decode of a locally generated weak signal that would
have been "M" copy on 3sec QRSS and was decoding the signal I sent OK. (you
will need USB Alan as you suspect).
It is difficult to decode strong signals, you will have to reduce the gain
to almost zero or add noise until the signal is buried.
Alberto. Another thought for when you have a spare moment (!!) could some
mode be introduced that would stop the signal bleeding across when very
loud? On Argo, the "Lo" gain setting works well for monitoring your own
transmission.
The PSU stood the test (with the addition of some fans) so I can transmit
any time for tests.

73.
Dave G3YXM

----- Original Message -----
From: "Alan Melia" <Alan.Melia@btinternet.com>
To: "LF-Group" <rsgb_lf_group@blacksheep.org>
Sent: Tuesday, January 15, 2002 3:40 PM
Subject: LF: Jason decode


> Hi Alberto, It occurs to me that to decode correctly we will need to be
> listening on upper-sideband otherwise we will get a frequency translation
of
> the tones and thus an incorrect decode.
> I am 'enabled' on receive, and just missed a transmission from Dave this
> morning due to being on the wrong sideband. By the time I had changed the
> rx, he had gone.
> A wish for the next version......a "Clear & Home" button for the RX
window.
>
>
> (addition before posting)
>
> Dave G3YXM signal received at 1520 (ish) very strong. It was very
difficult
> to reduce the level such that a narrow line was seen in the waterfall.
When
> that was achieved the signal was total inaudible even with the speakers
> turned full up. Despite seeing all the signal in the centre slot until
1530z
> not a single sensible char was decoded. Very odd. The "thermometer" on the
> left was totally off screen for a signal giving a clean line in the
> waterfall, and only showed when the audio was producing a 'flared' 5mm
wide
> trace.
>
>
> Cheers de Alan G3NYK
> Alan.Melia@btinternet.com
>
>
>
>
>