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RE: suitsat SSTV software



I agree .. the best way would be some sort of digital recording.  The next
best may be recording on the audio track of a Hi-Fi VHS video tape. And the
last option I would try is a conventional audio cassette .. but only if I
could not do any of the others options.

Richard Amirault              N1JDU
Boston, MA, USA          Go Fly A Kite
----- Original Message ----- 
From: "Mark Saurman"
Subject: Re: [amsat-bb] suitsat SSTV software


> On 2/1/06, n3wwn wrote:
>> Hi!  I'm planning on using MMSSTV for receiving SuitSat...but I'd like to
>> test it first.
>>
>> Does anyone have a recording of some SSTV in Robot36 format that I can
>> use
>> to test my setup?
>>
>> I plan to record the passes with a cassette recorder connected to the
>> speaker jack of the 2m receiver and then decode afterwards so I can focus
>> on reception during the pass.  Anyone see a problem with doing that?
>
> I have recorded SSTV audio with a cassette recorder in the past and I
> find that the signal is very particular to timing.  If the cassette is
> played back just at a slightly different speed than recorded, which
> even though is an inaudible difference to the ear is enough to mess up
> the precise timing used to send the components of the picture.  My
> resulting picture was a slanted onewith the colour layers shifted from
> their locations.  I was only using an inexpensive tape recorded so
> perhaps a professional one would fair better, but I think your best
> bet if you can't receive it live on the computer would be to record it
> digitally, i.e. with a flash memory type recorder, mini-disc, DAT
> tape, etc.
----
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