David G. Nagel wrote:


I would like to have a tuned dipole for each band/subband but have
neither the room nor the desire to do so.
Now if you go to the receiver and look at the signal strength meter,
s-meter, you will see that 16db is only about 1 to 1 1/2 s units. In
that a receiver can differentiate a signal down to a very small value
the loss is of only academic interest, except to the purists.

Dave WD9BDZ

A hundred bucks says you haven't checked your rig's S-meter response to
two signals accurately measured as 16 dB different.

16 dB is the approximate gain of a 23 element Yagi having a 6.5
wavelength long boom (that's about 450 feet at 14 MHz), compared to a
dipole. Only "Kurt Sterba" and a few others believe this amount of gain
is insignificant.

Roy Lewallen, W7EL

David G. Nagel wrote:
I would like to have a tuned dipole for each band/subband but have
neither the room nor the desire to do so.
Now if you go to the receiver and look at the signal strength meter,
s-meter, you will see that 16db is only about 1 to 1 1/2 s units. In
that a receiver can differentiate a signal down to a very small value
the loss is of only academic interest, except to the purists.

Well, the average ham receiver's S-units are more like 4-5 dB steps.
Even with the "standard" 6 dB per S-unit, 16 dB is about 2.7
S-units. I guess there are a lot of purist hams, me included.
--
73, Cecil http://www.qsl.net/w5dxp



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I challenge any antenna 'inventor' to invent an antenna that is not
described in Kraus' book, at least at the fundamental theory level!

Which addition?

73,
Chip N1IR

Here's a helpful hint on the (ohmic) loss: what is the power rating of the
resistor (and is it wirewound?) and what is the rated input power at the feed?

Obviously there are multiple current maxima at the high end of HF That would
seem to count for something:-)

Graph the mismatch loss vs ohmic loss over the entire passband, then plot the
peak gain compared to a (dipole of the same total height)--and then tell us
this antenna doesn't work:-)

Key question: what problem was this antenna solving? I bet that a 110 ft
inverted V--unterminated and ungrounded --was far worse in solving the problem
as posed.

73,
Chip N1IR

Which addition?


I hope some got the pun...for those who didn't...'which edition'?

--C