I have a quarter-wave vertical for 40m on a steeply sloped lot, at about
100m AGL, 300m horizontally from the ocean. It currently has a relatively
poor radial field (more are in the works, of course); I use it entirely as a
multiband receive antenna, not for TX. A second fan-vertical element is
Does anyone know of a source for spots for the JT modes (JT65A, JT9, and so
on) on any bands, and LW or MW (below 160m) in any mode, that is also
machine-accessible? Or good automated tools to find and generate them?
I know of the spots at WSPRnet and HamSpots, but neither site nor the WSJT
Regarding how the RBN works:
You will be re-spotted if you change frequency (more than about 0.1 kHz), or
after 10 minutes.
Note that due to QRN/QRM/QSB, some Skimmers may not hear you the first time
you call. For this type of testing, you might want to call several times in
a row, on the same
I do not dream of working ZL on 500
Especially since 500 kHz isn't available to hams in ZL yet.
We do have 1750m, though (130 to 190 KHz), but the maximum power output is
only 5W.
73, Rick ZL2HAM
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of
This isn't a problem only in contests.
In non-contest settings, nearly every time I'm on the air for any length of
time (SSB), it results in a pileup (no matter which band). Things generally
go smoothly in most parts of the world, with the notable exception of EU.
Many ops on the other end there
Until recently, I was planning to put up an inverted-L as a TX antenna for
80 and 160. However, things have changed, and it no longer looks like I'll
be able to run the radials I would need to have an effective vertical. Now
I'm leaning toward a low dipole.
My site is highly constrained: it's
You can download the RBN raw data from:
http://www.reversebeacon.net/raw_data/
After uncompressing the CSV files, you can use a the find command at a DOS
prompt to collect your spots:
find WA3MEJ *.csv wa3mej.csv
After that, it's straightforward to import into Excel and analyze from there.
I'm not a dxpeditioner, but even so I frequently find myself on the
receiving end of pileups, particularly with EU. The behavior of some callers
occasionally makes the process very painful. It's also much more work than I
think some people understand. Callers who end with enjoy the pileup
actually
From N4IS:
Another advantage is to know if the band is open, thing not so common
nowadays, I don't raise a skimmer in EU for several weeks, JA, ZL or VK
since August.
Keep in mind that both of the Skimmers in ZL have very poor reception on
160. ZL2RV is using a short active antenna, and I
I'm interested in putting up TX antennas for 80m and 160m DX, and would be
interested in ideas/feedback on possibilities.
I'm thinking about an inverted-L, rigged in some way to support both bands.
I'd rather avoid Battle Creek Special style traps, if I can.
I'd like to use an existing 10m
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