Set up the yagi in YO with the proper taper, and then save the yagi
design with the .ANT extension. This will cause YO to save it as an AO
type file. That should get you a well along the way for your EZNEC entries.
tom
K0TAR
sbc yahoo news wrote:
For most part must agree with all, and REMEMBER, that these are NOT totally
exact-- for instance- done
same with (YE-GADS!) a 6 meter 7 element yagi, with pretty well known
properties, by M-Squared, both in
YO, and in EZNEC-- and the forward gain is more or less identicle, but the
F/B is something else! However, didn't
taper the elements (first 18 inchs at a given diameter, rest of el length, a
smaller size tubeing-- does this make
EZNEC an error prone program? NO! t'was my fault in NOT takeing the time
to input all those extera connections
into the model ! (tho, would be interesting to see it PROPERLY modeled, and
admittedly, YO handles this much easier
for a yagi- did the same for a DX engineering, (elements ALL same diameter)
and forward gain is about the same
and the f/b is within 5 db (the 7 elM squared is about 15 dB different F/B)
But all in all, best to trust EZNEC-
seems pretty much dead on for most applications. as info-- Jim NN7K And,
PS, is nice to see a CIVIL conversation
here! JF
"Reg Edwards" wrote in message
...
A very rare, welcomed, combination of events has occurred.
First we have a sensible, concise, well-presented enquiry about
inverted-V's.
And secondly we have a response from Richard (Clark) which combines both
his
advanced (never doubted) technical knowledge and his ability (but long
awaited) to express himself in the logical, unambiguous,
easy-to-understand
English language.
Makes a change from the deliberately confusing, psychologicially mixed-up
stuff we are accustomed to. Keep up the good work.
But may I say I have learned a lot over the years from your own
how-not-to-do-it mode of expressing yourself.
Richard, please forgive me for being so forthright in public. I'm on
Valencia red this evening. I'm sure you will understand.
Incidentally, I think the English and American languages, after a
generation's lapse, are coming back closer together again. You get rid of
Bush and we'll get rid of Blair.
---
Yours, Punchinello, G4FGQ.
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