[time-nuts] Re: Isotemp OCXO question

[Bob kb8tq]

Hi

Another tidbit …..

The antennas are each actively tuned (they are *very* narrow band). As the wind blows,
you can watch them adjust to the change in “shape”. Very cool …..

Bob

> On Aug 21, 2021, at 4:41 PM, Poul-Henning Kamp <phk at phk.freebsd.dk> wrote:
> 
> --------
> Robert DiRosario writes:
> 
>> I really wish NIST didn't add the BPSK modulation to WWVB. Increasing 
>> the transmitter power would have been a lot better, but I'm sure that 
>> would have cost a lot more then just changing the modulation.
> 
> One does not simply increase the transmitter power at 60kHz.
> 
> The WWVB antennas are essentially capacitors against ground, around
> 15nF, and they operate at voltages somewhere in the 30-50kV range.
> 
> -- 
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe    
> Never attribute to malice what can adequately be explained by incompetence.
> _______________________________________________
> time-nuts mailing list -- time-nuts at lists.febo.com -- To unsubscribe send an email to time-nuts-leave at lists.febo.com
> To unsubscribe, go to and follow the instructions there.