"D" Layer in the Ionosphere
 

Heard someone on WBCQ saying there were problems with the "D" layer in the
ionosphere...
- which is probably why they ( WBCQ) dissappear at around 7:00 P.M. EST..

Anyone have a clue as to Why WBCQ , broadcast from Maine,has been skippings
over the Northeast for the last 3 or so months....?

"Harveyat8c43z0" wrote in message
...

Heard someone on WBCQ saying there were problems with the "D" layer in the
ionosphere...
- which is probably why they ( WBCQ) dissappear at around 7:00 P.M. EST..

Anyone have a clue as to Why WBCQ , broadcast from Maine,has been
skippings
over the Northeast for the last 3 or so months....?



Problems in the "D" layer ??? Hmmm.... The "D" layer is the lowest part of
the ionosphere and it exists only in the day time. When the sun is above
the horizon is charges up the ionosphere and the "D" layer is created. The
"D" layer attenuates lower frequencies. Thats why most everything below a
given frequency can't be heard during the day time while stuff higher up on
the bands is tight enough to squirt through.

Is the signal going long at night ??? That happens whey the signal travels
higher up in the ionosphere on its first trip up and is reflected back at
an angle that skips right over the close areas. Maybe that is what is going
on.

Michael

The 41/40m band has been going real long in the evenings. Quite often I won't
hear anything closer than 800 miles or so all night unless it's ground wave.

jw
k9rzz

J999w wrote:

The 41/40m band has been going real long in the evenings. Quite often I won't
hear anything closer than 800 miles or so all night unless it's ground wave.

We go through the WBCQ (7415 and perhaps other frequencies) not being heard 'close
in' complaints every year around this time. It's fairly normal propagation.

dxAce
Michigan
USA

"dxAce" wrote in message
...


J999w wrote:

The 41/40m band has been going real long in the evenings. Quite often I
won't
hear anything closer than 800 miles or so all night unless it's ground
wave.

We go through the WBCQ (7415 and perhaps other frequencies) not being
heard 'close
in' complaints every year around this time. It's fairly normal
propagation.

dxAce
Michigan
USA

I'm having the same problem here in south-west Missouri- 7415 goes away
during the early to mid-evening. Thats something like 1200 miles. So I
thought the problem was more likely with the station.
Brian