18 Nov
2009
18 Nov
'09
7:49 a.m.
-----Oorspronkelijk bericht-----
Van: cctalk-bounces at classiccmp.org
[mailto:cctalk-bounces at classiccmp.org] Namens Cameron Kaiser
Verzonden: woensdag 18 november 2009 16:17
Aan: cctalk at classiccmp.org
Onderwerp: Re: tape "load and save" to a PC/Mac
I think he means, the signal after sync mark should be in fase with the sync
mark or 180 degrees out of fase.
Did you compare the tape signals with the signals you're generating with a
scoop or may be using a spectrum analyser ?
Measuring should give you some clous about the differences between the
original and generated signals.
Is it possible that the sync mark being to long could generate a time-out..
-Rik
Hi
It might be the phase of the signal that counts.
The Poly88 used a manchester encoding and It had a switch to select
the right phase ( normal or inverted ).
But wouldn't the sync mark handle getting the proper phase
(i.e., the adjustment to properly read the pulses)? Or do I
misunderstand what you're referring to by phase?
--
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Cameron Kaiser * Floodgap Systems * www.floodgap.com *
ckaiser at floodgap.com
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