[Lowfer] Can WSPR be compared to a QRSS speed

John Andrews w1tag at charter.net
Sun Feb 8 22:09:32 EST 2015


L,

I think that DFCW does exactly what you suggest. You get a shorter 
message time, and better certainty about what's real and and what isn't.

Screen shot of one ZL6QH test:
http://www.w1tag.com/files/ZL6QH120.jpg

The spacing between the dashes was too close - they just ran together, 
and the frequency shift should have been narrower for best brain 
performance.

Any influence I have over Mother Nature seems to have disappeared this 
winter. Sigh...

John, W1TAG

On 2/8/2015 7:31 PM, Laurence KL7 L wrote:
> I agree with Johns' comments - did we ever figure out whether DFCW 30 versus qrss30 just helped a little more beyond  the co channel carrier issues that qrss may have, ie visual acuity and confirmed ID decoding a little better? Im guessing it may help by shortening tx periods against fades, maybe...
>
> I remember having all sorts of issues with zero/small inter digit space dfcw that zl6qh ran on 136 when I was in 3D2. I just couldnt handle it, and ended up asking them to go to  on CW...
>
> Ive a request - can someone ask someone to stop these horrid winds and the near continual Auroral warnings im getting since last September - please.... Well it is Sunday.
>
> Laurence KL7L etc
>
>
>
>> On Feb 8, 2015, at 9:41 AM, John Andrews <w1tag at charter.net> wrote:
>>
>> Andy,
>>
>> My guess would be that WSPR15 compares with QRSS30, and WSPR2 compares with QRSS3. That is based on some tests that Jay and I did comparing WSPR15 and WOLF, and some earlier work I did with QRSS rate comparisons. Of course, the usual disclaimer that QRSS requires brain interpretation applies.
>>
>> John, W1TAG
>>
>>> On 2/8/2015 12:27 PM, Andy - KU4XR via Lowfer wrote:
>>> I suppose this is an apples, to oranges question, but, is there a " roughly equivalent to "
>>> comparison of WSPR to a QRSS speed ?? Thanks for any comments...
>>>
>>> 73 : Andy - XR
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