> If a RTTY user is on a frequency you want to use
> then QSY or wait until its clear
It isn't a matter of JT65/JT9 operators waiting on the RTTY op -
just the other way around. The RTTY operators *DO NOT LISTEN*
for the other modes - which have a 48 second transmit/72 second
receive cycle. The RTTY contesters fire up *on top of* existing
QSOs - typically during the 72 second time when one station is
listening for the other.
RTTY contest participants need to be taught about the characteristics
of other data signals and avoid those narrow centers of activity rather
than simply hit F1 on any frequency that shows no activity in the last
100 milliseconds.
73,
... Joe, W4TV
On 2015-01-05 10:27 AM, Liam liam wrote:
hi The bands are shared
If a RTTY user is on a frequency you want to use
then QSY or wait until its clear,,,during CW or PSK tests
contesters operate well into the
frequencys normal used by RTTY ops Most RTTY ops understand
and either give away a few points in the test mode or QSY to a WARC band
Liam
On Mon, Jan 5, 2015 at 3:05 PM, Joe Subich, W4TV <lists@subich.com> wrote:
Like it or not, the bands are shared usually based on bandwidth of the
signal (depending on your country).
While that is true, IARU recognize the "center of activity" concept.
The JT65/JT9 "center of activity" is x.076-x.080 *and that does not*
*change* just because there is a RTTY contest - any more than the
PACTOR autobots leave 14.095-14.0995/14.1005-14.115 and PSK31/63
abandons xx.070-xx.074 for the duration of the contest.
RTTY contesters need to learn if the dial reads less than xx.0805 they
are causing *intentional QRM* to other modes and find another frequency
or band. I was frankly disgusted by the number of *big guns* who should
know better coming up on top of existing TJT9 and JT65 QSOs all weekend.
It is time that RTTY contest sponsors make a strong effort to educate
their participants about other digital activity below xx.080 (between
xx.070 and xx.080) particularly on 20 and 15 meters.
73,
... Joe, W4TV
On 2015-01-05 9:34 AM, Michael Walker wrote:
Like it or not, the bands are shared usually based on bandwidth of the
signal (depending on your country). If you want channelized operation you
may have to look elsewhere--just not ham radio.
Be very happy we have this flexibility.
Mike va3mw
On Sat, Jan 3, 2015 at 9:04 PM, Lynn W. Taylor, WB6UUT <
KX3@coldrockshotbrooms.com> wrote:
I'm just guessing, but didn't someone on the list say there was an RTTY
contest?
Isn't it fairly common for contesters to get a bit "enthusiastic" and
overlook things, especially when the op is a contester, and not
necessarily
on RTTY at any other time?
On 1/3/2015 5:39 PM, Harry Yingst via Elecraft wrote:
What up with all the Lids running JT-65 right over the top of existing
JT65 QSO's
Haven't they ever head of Listen before you transmit?
Better Yet have they heard of a Band Plan?
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