Bob The fact is its on the web. :-) I was surprised that the documents said that also given most LF Ham systems are very inefficient given what we have to work with in $ and space. But then again its no an amateur installation. With 16 X 825 ft towers and miles of wire over salt flats and water. Matching systems that are like a Frankenstein movie. Regards Paul WB8TSL
On Sat, Aug 16, 2014 at 11:33 AM, Bob Camp <[email protected]> wrote: > Hi > > I would be *very* surprised if the NAA antenna was 50% efficient > (transmitter RF to radiated power)….. > > Given that it’s already up and running with good signal levels, that’s not > a big deal. > > Bob > > On Aug 16, 2014, at 10:24 AM, paul swed <[email protected]> wrote: > > > Ken > > At least last night NAA was running just fine using a fluke 207 and 4 ft > of > > wire. > > The antenna is behind a metal rack that shields it in NAAs direction. I > did > > that test out of curiosity. > > > > Granted its 2 MW but then again the antenna is at best 50% efficient. > > Who knows maybe they have sections of the antenna down for maintenance. > > Regards > > Paul > > > > > > On Fri, Aug 15, 2014 at 11:22 PM, Kenneth G. Gordon < > > [email protected]> wrote: > > > >> On 15 Aug 2014 at 20:57, paul swed wrote: > >> > >>> Did check NAA and its banging into Boston. > >> > >> 2 Megawatts to that antenna should show VOLTS at your place. > >> > >> We used that station for many years for VLF propagation research in > >> Missoula, Montana. It banged in 24/7/365. Still does, except when its > down > >> for maintenance. > >> > >> So did Jim Creek (of course) and NWC in Australia, and a station whose > call > >> I have forgotten in the Canal Zone. > >> > >> Back in 1973. > >> > >> Ken W7EKB > >> _______________________________________________ > >> time-nuts mailing list -- [email protected] > >> To unsubscribe, go to > >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >> and follow the instructions there. > >> > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
