Re: Mark space ratio in 1531 data signal

From: smf <smf_at_null.net>
Date: Wed, 11 Dec 2019 00:08:05 +0000
Message-ID: <c36b2493-152a-7150-9ccf-6e4cb783fa06_at_null.net>
On 10/12/2019 20:41, Nejat Dilek wrote:
> It's already answered but let me rephrase the question supporting it
> with images ;
> You had a custom tape routine and you save data to the tape,
>
> Why the signal in the first picture is the preferred one?
>
> https://www.commodore.com.tr/filedata/fetch?id=663&d=1575506083
>
> https://www.commodore.com.tr/filedata/fetch?id=664&d=1575506094
>
> In both signals t1+t2 is equal, in the first one t1 = t2, in the
> second one t1 is way smaller than t2.
>
The second has a much higher frequency, which might even get filtered
out entirely by the datasette's analogue path. In any event it's going
to be less reliable for no gain at all.
Received on 2020-05-29 23:51:57

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