[RTTY] Waterfall and CQ conundrum

[Jerry Flanders]

I should have googled it before I asked, Phil. There is a pretty good 
discussion at: 
http://forums.qrz.com/index.php?threads/the-mechanics-of-one-way-propagation.379805/

Maybe an effect of polarization change.

Anyway, If one sees no signal on the history of his waterfall, It 
means (1) Nobody is there. (2) I can't hear him/her.

If I can't hear him/her, I won't be able to hear his reply to my QRL, 
will I? So the QRL with a modern panadapter/waterfall seems useless to me.

Years ago you could download a copy of PowerSDR along with a 
recording of the RF of an active band - you could play the recording 
on PowerSDR and see exactly how well the waterfall worked. Anybody 
know if that recording is still available?

Jerry W4UK

At 11:54 AM 3/27/2016, Jerry Flanders wrote:
>Can you tell us more about the 'laws' of one-way-propagation, Phil? 
>I have heard of this for many years but have _never_ been able to 
>find any proof of it - only opinions.
>
>Jerry W4UK
>
>At 06:54 AM 3/27/2016, Phil Sussman wrote:
>>Ian is correct. Technology is a wonderful thing and is a good
>>supplement. But, it is no substitute for common courtesy.
>>
>> From another point of view, many listeners might be observing
>>a waterfall, all at the same time from various locations.
>>Some might see a 'point' as occupied while others do not. Since
>>there are no fixed frequencies, adjacent operating points vary.
>>In addition, the 'laws' of one-way-propagation can apply.
>>
>>QRL or no QRL. Waterfall or no waterfall, contests have become
>>for me, a matter of overblown egos and budgets. That's why I
>>seldom participate and if I do make an exchange I don't submit
>>a log. I really don't care about making points.
>>
>>73 de Phil - N8PS
>
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