On Sat, 25 Feb 2017 12:17:20 -0500, Michael Black wrote:

But 25MHz is back, a few years ago someone did some figuring and decided
it could be done without any real cost increase, and they resurrected it
as a test, and then kept on going.

Michael

Well, I just learned something! You're right...NIST's website says it's an
experimental broadcast and may be interrupted or suspended without notice, but
they're putting 2500 watts into the original vertical half-wave dipole located
at the coordinates 40 deg. 40' 50.5"N, 105 deg. 02' 26.6" W. Apparently when
they first went back on the air they were using the broadband monopole that
serves as the backup antenna for WWV's 2.5 MHz transmitter and feeding it only
1000 watts, but they decided to keep that antenna for WWV's backup 2.5 MHz
transmitter and rebuilt the original vertical dipole, which had been converted
to a backup antenna for 15 MHz. Once they did that, they cranked the transmitter
back up to its full rated 2.5 kW output.

I guess the vertical dipole has a lower angle of radiation than the monopole
did, too Good - it'll take fewer hops to get here if 25 MHz ever opens up to my
neck of the woods!

Thanks for your post, Michael. I haven't necessarily kept current on everything
since leaving PopComm, and so I missed hearing about this until now.

John D. Kasupski
Niagara Falls, NY