Re: [IRCA] QRRe: A idea for future DX Tests.....

[Brandon Jordan <brandon@xxxxxxxx>]

Les Rayburn wrote:

> I'm all for Brandon's suggestion. This technique is called QRSS (Slow 
> Speed CW..."

Hi Les, thanks for copying this message to me directly, as I have yet to 
see it via the IRCA list.

I am familiar with LF QRSS experiments with *extremely* slow morse, to 
where a single dot is a minute or more. This isn't where I am going 
really. I'm pushing towards a happy medium to where the CW characters 
are simply long enough for Spectrum Lab, running at a normal waterfall 
speed, can easily display the morse characters.

If you take a look at the Spectrum Lab dump I posted in a previous 
message, you can see that Spectrum Lab is already displaying the breaks 
between the CW words, i.e. DE and KTMI etc, at the normal slow speed CW 
the stations normally use. Lets take it down a few notches, if the morse 
was running at a speed of where the dots were 1 second, the dashes 4 
seconds, spaces between letters 2 seconds and spaces between "words" 3 
seconds, then Spectrum Lab could easily display the morse characters 
right there on the waterfall.

I'm thinking easy mode and not hard core QRSS which is pretty 
specialized and does take TXCO's, etc. I'm looking to where a DXer with 
just an average receiver that has SSB capabilities, a PC with a sound 
card and running the freeware Spectrum Lab can easily monitor a test and 
"see" the CW ID's, even so weak the ear can't detect them, right there 
in Spectrum Lab. That's why in the Spectrum Lab dump I posted, I used 
USB with a 3 kHz bandwidth filter. Now that I think about it, I bet it 
is possible for a AM only receiver to display the 1 kHz CW tones in 
Spectrum Lab.

This sounds so do-able, and able to take these DX Tests to a whole new 
level. Coast to coast loggings, and giving foreign DXers a real shot at 
conclusively IDing these tests. All without fancy equipment. :)

73,
Brandon Jordan
Memphis, TN
www.bcdx.org
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