Hi Paul a major geomag storm occured around midnight UTC on the 14/15th.
This precipitated hot electrons into the D-region which causes extra
attenuation at night and enhanced daytime long distance signals. The daytime
effect is usually short lived but the night-time absorbtion may continue for
a few nights, as the ionoshere exchanges charge with the Ring Current (Van
Allen belts)
Alan
G3NYK
----- Original Message -----
From: "paul swed" <[email protected]>
To: "paul swed" <[email protected]>; "Time-nuts" <[email protected]>
Sent: Monday, July 15, 2013 2:56 AM
Subject: [time-nuts] WWVB odd propagation 07/14/2013
Well this is pretty strange.
Working on the WWVB d-psk-r and testing a new simple receiver with agc.
Classic transistor design simple, cheap, and common parts.
Normal wwvb signal strength on near boston using a Dymec WWVB rcvr quite
accurate.
day night
60-80 300-500
today
150 150
Fairly constant and we have gone through diurnal shift across the country
now.
Thats very strange
Also verified using a HP3586 and its readings have matched the Dymecs
throughout the day.
The agc is not getting much of a work out. But I have to say I have never
seen wwvbs signal this stable and I am talking many years.
Regards
Paul
WB8TSL
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