ARLP027 Propagation de KT7H: July 5, 1996

Propagation Forecast Bulletin 27 ARLP027
From Tad Cook, KT7H
Seattle, WA July 5, 1996
To all radio amateurs

ARLP027 Propagation de KT7H

Over the past week the author of this bulletin was relaxing on the coast of Washington State at Tokeland and then at Pacific Beach. Night time listening on low frequencies with a general coverage receiver was a treat, as we were away from the city in a lightly populated area on the Pacific shore.

Average Sunspot number was down just six points for last week compared to the week previous. Average Solar Flux was unchanged. Here at the bottom of the solar cycle it is difficult to make forecasts based on recurring activity on the rotating Sun, since there is so little activity to track through the solar rotation.

The latest forecast from NOAA Space Environment Service Center shows no geomagnetic disturbances expected over the next month, and the Solar Flux staying right around 70. It is expected to drop below 70 over the next few days, then come back up to 70 around July 17.

Best bets during the Summer for worldwide propagation are 20 meters during daylight, especially north south paths, and 30 and 40 meters after dark.

Sunspot Numbers for June 27 through July 3 were 25, 24, 23, 23, 11, 13 and 13, with a mean of 18.9. 10.7 cm flux was 71.4, 71.4, 70.9, 70.7, 70, 70.4, and 69, with a mean of 70.5.