[Lowfer] Antenna Questions

[Warren Ziegler]

Hi Peter,

   Good point about the top-hat.  You also have to include the length
of the ground lead in the 15m.
I will have to search the list archive but someone on the list did ask
the FCC about the 15mx15m loop and the FCC responded that
the rule meant 15m total conductor length. The reality is that the FCC
will probably never check and you could always try to claim
 ignorance and offer your own interpretation of the rules. (If you go
that route, it would be better to have NO FCC licenses which the
Commission could revoke.)

I'm not denigrating what the others have accomplished, just pointing
out how much more was accomplished in a much shorter span of
time in Europe where all you need is a ham ticket to operate lf. In
this country we have not advanced past a handful of active LF
experimenters, almost too few to be self-sustaining in terms of
interest levels.  I've run into more than one guy who put up a
Part 15 beacon, never received any reports and when the antenna blew
down didn't bother to put it back up. I think most guys
envision getting on and making QSOs - the reality of constant
beaconing can be quite a let down.

Last year I was really excited to hear a Part 15 beacon in CT 100+
miles away supposedly running  100mW dc input into a 3m
antenna, shortly after posting my miraculous reception report I found
out the guy was actually running several watts into a much
 larger antenna. I felt that I had been taken in by a cheater.
-- 
73 Warren K2ORS
                WD2XGJ
                WD2XSH/23
                WE2XEB/2
                WE2XGR/1



On Wed, Mar 4, 2009 at 1:31 PM, Peter Barick <pbarick at niu.edu> wrote:
>>>> Warren Ziegler <wd2xgj at gmail.com> 03/04/09 11:22 AM >>>
>
>>> I believe the FCC was asked for clarification and there[sic] response was that the antenna
> should have a total conductor length of 15m! (not 60m).
>
> --Warren, I am unaware of such a response. I believe it was left a "sleeping dogs" matter. But further, and you did not mention, the 15M rule is also specially applied to a vertical with tophat. The tophat being thought of as having radius of x, whereby r + h = 15M length. Many also liberally interpret r as having unlimited points about the focus, hence a "T" of 2r. Never saw a rule Not allowing such. Wonder what your point is by denigrating what other LF fellows have accomplished. Have a better method, fine, but sour grapes all over your post.
>
> You haven't proved the "great U.S. LF amateur setback" either. Conjecture to me. So strident, again what is your point?
>
> Sincerely, Peter
>
>>> The rules also force you into doing dumb things like placing your transmitter at
>>>the antenna feedpoint rather than in the hamshack where it belongs.
> <...>
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