Hi Actually not the whole story.
Propagating (far field) antennas are also a function of producing the polarization you want and a good field remote from the antenna. For instance, you can get a really good field inside a toroid, but it's not a good far filed (or near field) antenna. Bob On Jul 28, 2013, at 5:23 PM, Bob Camp <[email protected]> wrote: > Hi > > Small antennas (all antennas at 100 KHz are small) are not a matter of > wavelengths of wire in the air. They are a matter of making do with what you > have. Efficiency is more a matter of coil loss (or equivalent) than of > antenna size. > > Bob > > On Jul 28, 2013, at 5:12 PM, Bob Stewart <[email protected]> wrote: > >> So, given the size of a typical freighter these days, what's so hard about >> imagining one with enough wire in the air to make that happen for whatever >> political or commercial reason? >> >> Bob >> >> >> >> >> >>> ________________________________ >>> From: Bob Camp <[email protected]> >>> To: Discussion of precise time and frequency measurement >>> <[email protected]> >>> Sent: Sunday, July 28, 2013 4:05 PM >>> Subject: Re: [time-nuts] GPS Spoofing >>> >>> >>> Hi >>> >>> So in this case we're talking about "horrible" to "even more horrible" in >>> terms of efficiency. I'll freely grant that a 600' tower over a really good >>> ground plane (like say the sea) is going to be way more efficient than >>> anything I'd come up with. The same thing would apply to a matching network >>> made of coils you can stand up inside compared to anything I'd make. >>> >>> Totally off topic - In the lobby of Continental Electronics they used to >>> have this typical transmitter sitting there. You sort of wondered "why". >>> After looking at it you figured out the little ant down in the bottom was a >>> person. Yes, the coils and "stuff" in Omega transmitters were *big*. >>> >>> Bob >>> >>> >> _______________________________________________ >> 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.
