I wonder if it was the TPF that made the difference here, John? As I
understand it, the PRO's TPF was not on for the Rttyrite comparison - only
for the PRO screen shot?
It might be useful to directly compare Rttyrite screens for the output from
the PRO vs the MK-V with the 350 Hz TPF filter in the PRO and a similar
width (not TPF, or course) filter in the MK-V. This might be a good test of
one radio's RTTY performance vs the other.
Jerry W4UK (New PRO owner, 5 days now!)
At 11:13 PM 9/5/2001 -0500, you wrote:
>I've been toying with making some comparisons between the MARK-V and the
>PRO. I'll get better at this, but thought this was mildly interesting.
>
>Both the PRO and MARK on a T-splitter to the yagi. Both radios on straight
>500 Hz filter. NO APF or anything else applied. I noticed that neither was
>perfect print in the Rttyrite windows. They were tuned with the AFC on so
>that the yellow lines were aligned, then the AFC was turned off. Then I
>turned to the PRO to try the twin peak filters or narrowing the filters etc,
>when I noticed PERFECT PRINT on the PRO's main display! I captured the two
>radios in the Rttyrite windows with a screenshot - see
>http://www.qsl.net/wa9als/print.gif (PRO is left, and MARK is right) If
>you're not familiar with Rttyrite, the most recent text is above the red
>line.
>
>Then I tried to snap a photo of the PRO's display, but my hands weren't
>steady enough for the several second exposure, even at ASA1600! However,
>despite the poor photo, you can appreciate the perfect print!
>http://www.qsl.net/wa9als/100-0003_IMG_3.JPG
>
>This is not meant to slam Rttyrite in any way. Wide band decode might have
>helped, narrowing the filters might have helped etc. I was just a little
>surprised by the print in the PRO's decoder!
>
>73 - John
>
>
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