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![Previous (earlier) Story](/images/sty-down.gif ""DXer of the Year" Arrested in Japan Exam Case"){kind=small} Previous: "DXer of the Year" Arrested in Japan Exam Case |  Next: W5LFL: Phase 3D, ARISS Will Change Face of Ham Radio |
SEATTLE, WA, Jun 25, 1999--This is the weekend for ARRL Field Day, so our path projections this week will concentrate on domestic locations and the five HF bands which are of most concern to Field Day operations.
Sunspot numbers were down quite a bit last week, with the average lower by over 78 points compared to the previous week. Average solar flux was down almost 12 points. Geomagnetic conditions were very stable. Solar flux bottomed out on Saturday at 138.8, and is on the rebound.
Flux values this Field Day weekend are expected to be quite high, at 180, 185 and 190 for Friday through Sunday. Unfortunately there have been a couple of M-class flares in the past few days, and this will lead to unsettled to active conditions over this weekend, with planetary A indices at 15.
Sunspot numbers for June 17 through 23 were 167, 109, 117, 102, 148, 160, and 169, with a mean of 138.9. The 10.7-cm flux was 146.5, 146.5, 138.8, 151.5, 145.5, 161.6, and 167.5, with a mean of 151.1. The estimated planetary A indices were 7, 7, 7, 4, 4, 4 and 6, with a mean of 5.6.
Path projections for Field Day will assume modest antennas, and the times given should be a very good bet for working the target areas. You will find other times and frequencies work as well, but the ones listed here are as close to a sure thing as we can get. The best overall band for domestic contacts this weekend looks like 40 meters. To many areas it is open around the clock.
Remember in Field Day that there is no multiplier for working DX or for the number of states or sections worked, so the key is to have fun and work as many stations as possible.
From Portland, Oregon to Southern California, 80 meters 0130-1430 UTC, 40 meters all hours, best 0500-1130 UTC. To Denver, 80 meters 0130-1330 UTC, 40 meters all hours, best 0500-1030 UTC, 20 meters 1930-0700 UTC and 1430-1530 UTC. To Atlanta, 80 meters 0230-1100 UTC, 40 meters 0100-1230 UTC, 20 meters all hours, best 0430-0930 UTC, 15 meters 1730-0730 UTC and 1100-1230 UTC. To Dallas, 80 meters 0230-1200 UTC, 40 meters 0000-1430 UTC, 20 meters 0000-1430 UTC, 15 meters 0330-0530 UTC. To Pittsburgh, 80 meters 0230-1100 UTC, 40 meters 0100-1230 UTC, 20 meters 1700-1200 UTC (best 0330- 1000 UTC), 15 meters 0100-0600 UTC. To Minneapolis, 80 meters 0230-1200 UTC, 40 meters 2230-1600 UTC (best 0500-0930 UTC), 20 meters all hours, best 0400-0830 UTC. To Connecticut, 80 meters 0300-1000 UTC, 40 meters 0130-1130 UTC, 20 meters all hours, best 0330-0600 UTC.
From Southern California to Denver, 80 meters 0100-1400 UTC, 40 meters all hours, best 0400-1030 UTC, 20 meters 0330-0700 UTC. To Atlanta, 80 meters 0200-1130 UTC, 40 meters 0030-1300 UTC, 20 meters all hours, best 0300-1030 UTC, 15 meters all hours, best 0300-0600 UTC. To Dallas, 80 meters 0200-1230 UTC, 40 meters all hours, best 0400-1030 UTC, 20 meters all hours, best 0330-1100 UTC, 15 meters best possibility 0430-0730 UTC. To Pittsburgh, 80 meters 0200-1100 UTC, 40 meters 0030-1230 UTC, 20 meters all hours, best 0300-1000 UTC, 15 meters all hours, best 0300-0500 UTC. To Minneapolis, 80 meters 0230-1200 UTC, 40 meters 2300-1530 UTC (best 0400-1000 UTC), 20 meters 2300-1530 UTC, 15 meters possibly 0330- 0830 UTC. To Connecticut, 80 meters 0230-1000 UTC, 40 meters 0100- 1200 UTC, 20 meters all hours, best 0300-0530 UTC.
From Atlanta to Dallas, 80 meters 2300-01300 UTC, 40 meters all hours, best 0230-0930 UTC. To Pittsburgh, 80 meters 2100-1430 UTC (best 0200-0900 UTC), 40 meters all hours, best 0130-0930 UTC. To Minneapolis, 80 meters 2330-1200 UTC, 40 meters all hours, best 0230-0930 UTC, 20 meters could open any time, best bet around 2230 UTC. To Connecticut, 80 meters 2300-1130 UTC, 40 meters all hours, best 0130-0830 UTC, 20 meters could open any time, best around 2200 UTC.
From Dallas to Pittsburgh, 80 meters 0000-1200 UTC, 40 meters all hours, best 0130-0930 UTC, 20 meters all hours, best 0130-0500 UTC. To Minneapolis, 80 meters 0000-1230 UTC, 40 meters all hours, best 0330-0930 UTC, 20 meters could open any time. To Connecticut, 80 meters 0100-1030 UTC, 40 meters 2200-1330 UTC (best 0230-0830 UTC), 20 meters 2200-1330 UTC (best 0200-0900 UTC), 15 meters best bet around 0200-0300 UTC.
From Pittsburgh to Minneapolis, 80 meters 2300-1230 UTC (best 0230- 0900 UTC), 40 meters all hours, best 0230-0900 UTC. To Connecticut, 80 meters all hours, best 0200-0830 UTC, 40 meters all hours, best 0130-0600 UTC.
From Minneapolis to Connecticut, 80 meters 0030-1030 UTC, 40 meters all hours, best 0300-0830 UTC, 20 meters most hours, best 0200-0530 UTC and 1000-1100 UTC.
Amateur solar observer Tad Cook, K7VVV Seattle, Washington, provides this weekly report on solar conditions and propagation. This report also is available via W1AW every Friday, and a somewhat condensed version also appears in The ARRL Letter. Readers may contact the author via k7vvv@arrl.net.
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