[GreenKeys] using a scope for rtty
Bob Camp
ham at cq.nu
Sat Mar 17 20:42:31 EST 2007
Hi
Your ST-6 probably has drifted just a bit.
The scope will show a proper cross when your radio is tuned to the
center frequency of the ST-6. It will work just fine.
Bob
On Mar 17, 2007, at 8:31 PM, Eugene Hertz wrote:
> Hi All,
>
> Now that my rtty station is shaping up, I decided to pull out my
> tektronix 604 XY Monitor out of storage. And I connected it to my
> ST6 and had a question.
>
> Seems I was expecting a vertical ellipse and a horizontal ellipse
> corresponding to mark and space (or maybe space and mark, I forgot
> which is which). However the horizontal was not quite horizontal
> and the vertical was not quite vertical! The horizontal seemed to
> go up hill and the vertical had a similar angle.
>
> Now, I took my precision digital function generator and programmed
> in 2125 and 2295 so I know I'm putting in the right freqs. So why
> is this so? Does this mean that my ST6 is not quite tuned properly?
> Does it mean my XY scope is off?
>
> Thanks
> Eugene
>
>
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