Nothing magical about 48 seconds. Won't the pactor guys make the same
argument - but instead of 48 seconds maybe they will claim 48 minutes or
some other period. The fact is, there are options for guys who want to
operate.
WARC is always free of contest activity. And the number of weekends
non-rtty digi mode guys have this sort of issue is pretty few as there are
only really 3 big RTTY contests so they plan around it the same way I do for
traffic when an event is in town and I can't drive the same roads I normally
do. Operating on the WARC bands is a reasonable option in the same way it
is for CW ops who want to run that mode on the same weekend a big CW contest
is on. Or SSB ops when a big SSB contest is on.
73/jeff/ac0c
www.ac0c.com
alpha-charlie-zero-charlie
-----Original Message-----
From: Joe Subich, W4TV
Sent: Monday, January 05, 2015 10:13 AM
To: Mark n2qt ; RTTY
Subject: Re: [RTTY] Lids running RTTY on the JT65 Frequency
The other problem is often the JTx guys run SSB type bandwidths
I understand the SSB type bandwidth/tuning in the waterfall behavior.
However setting that aside, there were dozens of RTTY signals dead on
top of JT9 and JT65 stations this weekend. The issue is that RTTY
operators don't know - or care - about the 48 seconds on/12 seconds
off/2 minute cycle of JT65/JT9. If a frequency is vacant for even a
second some RTTY operator will press F1 there.
The only real solution is score reductions for those who transmit
(particularly those who run) below xx.0805 mark - particularly on
80/20/15/10.
73,
... Joe, W4TV
On 2015-01-05 10:49 AM, Mark n2qt wrote:
The other problem is often the JTx guys run SSB type bandwidths and we
Rtty guys
are at 300-400 hz. We may not even hear them, or even know what they are
if we do.
That said there were rtty guys right in the middle of the 76 to 80 splits.
Mark. N2QT
On Jan 5, 2015, at 10:43 AM, Joe Subich, W4TV <lists@subich.com> wrote:
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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