[Elecraft] Successful RTTY with K2

Dominik Bugmann Dominik Bugmann" <[email protected]
Wed Feb 12 15:18:00 2003


Last weekend I enjoyed my 2nd RTTY contest. More on
http://www.swiss-artg.ch/hb9czf/contests/2003/wpxrtty/wpxrtty.html

How did I calibrate my K2 for RTTY?
The center frequency for RTTY is 2210 Hz (2125 / 2295 Hz) and in the manual
I could read that for TX the fixed SSB-filter is used and I concluded that
low tones might introduce harmonics.
On 10 and 15m I switched to "normal"-RTTY and was able to set my filters
with center frequency 2.2kHz and bandwidth as follows:
FL1 stayed were it was (2.4kHz)
FL2 = 1kHz
FL3 = 500Hz
FL4 = 300Hz

For the reamining bands (below 15m) I had to chose RevRTTY (press CW RV)
because I was not able to move my filters high up. Since I was was working
in reverse mode I also had to press the Reverse button on MMTTY (reverse the
reverse).

In about 17 hours I managed 604 QSO (incl. 1 dupe) and the 500Hz filter was
just fine. 300Hz was only needed for the JA's on 40m. Power was either 50W
from KPA100 or 10W into a TL-922.

73 de Dominik, HB9CZF   and next weekend back to QRQ-CW :-)
http://www.swiss-artg.ch/hb9czf