Thanks Chen for the reply. Very nice video. I forwarded this to a friend who
is learning RTTY ropes and is an Apple man.
73, Jamie
WB4YDL
-----Original Message-----
From: Kok Chen [mailto:chen@mac.com]
Sent: Tuesday, February 25, 2014 9:44 PM
To: James C. Hall, MD
Subject: Re: [RTTY] Being the fox - pileup running
Jamie,
Tom DL2RUM used the waterfall very effectively when he operated RTTY from
VP2MUM and 9X0TL some years ago
http://www.youtube.com/watch?v=0lCEDaVLrCg
http://dl2rum.de/dl2rum/9X0TL.html (click on the link at "See here a screen
capture..." in that page to see the 9X0TL movie.)
It is very effective once you have enough dynamic range. Tom used the K3
with the sound card of a Mac laptop (24 bit) with RUMped as the DXpedition
logger and cocoaModem for demodulation. (cocoaModem had a feature called
"click buffer" that allowed him to print stuff in the waterfall (up to 20
seconds into history) even after the caller has stopped transmitting, You
can see Tom use that occasionally when the pile was too heavy and he had to
reclick on the waterfall. Tom told me was was getting rates north of 120 Q
per minute.
You don't need to do that nowadays, of course. Just use a skimmer that
constantly print all signals in the waterfall. Should be even less
fatiguing.
Vy 73
Chen, W7AY
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