[Elecraft] Contesters and Band Conjestion
Jim Brown
jim at audiosystemsgroup.com
Mon Jan 5 20:42:11 EST 2009
On Mon, 05 Jan 2009 10:29:31 -0600, Tom wrote:
>Yep, contests are much more important than gentlemen's agreements
>and courtesy these days. (IMHO)
The reality of worldwide frequency allocations is that on some
bands, contesters MUST violate bandplans to work stations outside
their own country. On 40M, for example, JA stations have a rather
limited bandwidth to operate RTTY and it's pretty low on the band.
On 80M, RTTY cannot operate above 3600 kHz due to a rather dumb
error made by a low level FCC clerk who rewrote the ham Rules
several years ago. One of our club members, operating from Aruba
(in the Caribbean) made 409 contacts on 80M, 809 on 40M, 1,127 on
20M, and 869 on 15M. This is in 24 hours of a 30 hour contest
period. That means there were at least that many active stations
that had to cram into the spectrum that the FCC gives us. There
are similar conflicts with SSB operation worldwide, especially on
40M. Our club alone had 77 members on the air in the contest.
There are MANY times when I can tune across 80M during hours of
darkness and hear NO signals at all. There are MANY times I can
tune across 40M and hear fewer than a dozen CW signals and half
that many PSK signals. On a non-contest weekend, perhaps twice
that number. Assuming two people per QSO, that means casual QSOs
are sharing a band with a FAR larger number of contesters. In
other words, casual operators are simply a few percent of the
total number of hams using the band. Heck -- a good contester can
easily run 50 QSOs per hour using a few hundred Hz bandwidth (if
he's got a K3) and the top contesters run at twice that rate.
The good contesters I know all listen before transmitting, and ask
if the frequency is busy if they hear nothing. But band conditions
change, sometimes rather quickly. A station can be running on a
frequency for an hour, and conditions change so that you and he
are now hearing each other. No one is being discourteous, it's
just band conditions. Last week during Stew Perry, I'd been
running a frequency for a half hour, and was making Qs as far as
the east coast (I'm near SF). A W2 shows up, doesn't hear me (he
probably had a big noise level, or maybe was on a Beverage pointed
to EU), so no matter how many times I told him QRL, he ignored me.
Discourteous? Probably just his local noise.
Note also that contests never use the WARC bands. 30M is a great
band for CW ragchewing, and I've never heard it crowded (except
when a couple of really rare DXpeditions are there at the same
time)!
73,
Jim Brown K9YC
VP -- Northern California Contest Club
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