QST de W1AW
Propagation Forecast Bulletin 30 ARLP030
>From Tad Cook, K7RA
Seattle, WA July 19, 2005
To all radio amateurs
SB PROP ARL ARLP030
ARLP030 Propagation de K7RA
This is a special supplemental propagation bulletin for Monday
afternoon, July 18 2005.
Chip Margelli, K7JA in Garden Grove, California reports that a
tropospheric duct is providing propagation on the 2-meter band
between Hawaii and Southern California.
I'll let Chip tell the story:
'The tropospheric duct to Hawaii is open again. I worked Paul Lieb,
KH6HME last night (Sunday) at about 0150 UTC July 18 on 144.170 MHz.
Paul's signal was up and down, peaking S6, but he was easy to work.
'I use 100 Watts from an FT-736R and brick amplifier to a Cushcraft
124WB (4-element wideband) Yagi at about 70 feet on my tower in
Chip continues, 'A number of other Southern California stations
worked Paul, as well.
'The beacon on 432 MHz was also being received well at the time.'
He concludes, 'The tropospheric ducting maps look very favorable
over the next 48 hours, so we have high hopes for more openings to
Hawaii this week.'
The regular propagation bulletin will be out on Friday, July 22,
2005 as usual.
If you would like to comment or have a tip, email the author at,
Sunspot numbers for July 7 through 13 were 149, 111, 126, 78, 68, 52
and 55 with a mean of 91.3. 10.7 cm flux was 124.9, 110.4, 106.6,
101.8, 93.3, 95.3 and 91.7, with a mean of 103.4. Estimated
planetary A indices were 8, 5, 19, 47, 23, 48 and 30 with a mean of
25.7. Estimated mid-latitude A indices were 6, 5, 13, 28, 14, 17
and 20, with a mean of 14.7.
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