Topband: 160M JT65HF, etc....
Jim Brown
jim at audiosystemsgroup.com
Mon Jan 2 14:49:42 PST 2012
On 1/2/2012 2:08 PM, n0ah.ham Paul Veal wrote:
> I have a real problem with digital operators who ignore our presence near or around 1.838MHz and just blindly transmit where stations are listening.
CW operators seem to be making a mountain out of mole hill on this
issue. Here in northern Califorina, with Beverages in four directions, I
NEVER hear anything but SSB above 1835 except during contests, and
you're not going to hear JT65 folks trying to compete with us during a
contest.
Indeed, it has been my experience that it is we CW and SSB operators,
whether contesters or DXers, who ignore the presence of those using
digital modes before we dump our pileups and contesting opeations onto
their long recognized frequencies. Most guys running JT65 are decent CW
operators, and even those who are not can at least recognize CW when
they hear it. But how many CW and SSB ops recognize PSK31, JT65, FSK441,
or ISCAT when they hear it?
JT65 occupies about 200 Hz bandwidth, and it's not at all uncommon for
there to be a half dozen QSOs going on in the 2.5kHz bandwidth
associated with a SSB rig running those modes. And believe me, if you're
running those modes, you are listening to what your sound card is trying
to decode, and you know for sure when a CW or SSB station is in that
passband.
As to JT65 moving -- as N2JDQ noted, there's been a lot of JT65 activity
on160M for quite a while, most or all of it between 1838 and 1840, and
most of us have been completely unaware of it. I certainly was until
three days ago, and I've been active enough on 160M since moving to W6
six years ago that I've worked 120 countries from here on 160M and won
multiple contests for my ARRL section on both CW and SSB.
73, Jim K9YC
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