When the X-band was starting up in about
1997 and it was pretty much empty, I
heard 2 California stations - one on 1640 and
one on 1650. They were received here in
Connecticut without too much effort.
Whatever propagation was present that allowed
this to happen - lasted 2 or 3 days (at night
of course) and then abruptly vanished.
I believe the 1640 station still has the same
callsign 19 years later - KDIA.
I'll have to calculate those distances some time.
Brooce
Wouldn't that daytimer fire up at 6am? Or do they have to wait for Sunrise in Denver?
It seems as if they would have to protect
KOA in Denver - or - it's not or no
longer an issue? Did they never try to get
a presunrise authorization?
They are a religious broadcaster.
Maybe they do network or recordings
or something like that. So signing on
at 6:AM may not be important.
Hmmm. A 5000 watt daytimer. There
aren't too many of those anymore.
Brooce
The FCC did away with Pre Sunrise and Post Sunset authorizations around 2007. All a daytimer has to do now is notify the FCC when they begin operating under what would be a Pre Sunrise Authorization. Basically all daytime stations in the US are allowed to begin broadcasting at 6am or earlier if the sunrise is before 6. Likewise Class D stations can begin using daytime power at 6am as well if they have night authorization.
I hear lots of things from my
broadcast engineer friends, but
I'm not a BC engineer myself,
so I miss a lot.
I might have been in the field if
some things had gone differently
early in life. The interest is still
there now, that's for sure.
Brooce
I'll try to null the local out and see what's lying underneath... Might have to turn off the part-15 TX on 1610 for serious DXing. Stay tuned.
Or do a road trip and get far enough away from the part 15 transmitter so that you can DX