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1. 04:24 PM - Bob Archer Antenna Voodoo (Jeff Luckey)
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| Subject: | Bob Archer Antenna Voodoo |
BobN, CharlieE, & RF Gurus et al,
I'm considering Bob Archer's wingtip VOR antenna for my RV-7 but I am too i
gnorant to understand how the thing works.
I have read posts all over the intrawebs and have some questions:=C2- (Pl
ease use small words and talk slowly):
1. It looks to me like the 'front/leading edge' 60 deg leg is bolted direct
ly to the base leg which is grounded.=C2- How can the "active" (is that t
he correct word?) be directly connected to ground?
2. I have read articles where the author is talking about "tuning" the ante
nna after it is installed in a specific airframe.=C2-=C2-=C2- a. They
talk about trimming/cutting pieces - what pieces and how much trimming?=C2
- b. They also talk about fooling with the dielectric section but I don't
understand what physical dimensions/properties they are altering.=C2- Ar
e they cutting aluminum or bakelite; or moving feed line screw holes; or ju
st moving the bakelite piece around in small increments??
3. SWR meter vs Antenna Analyzer=C2- a. I think that SWR applies to trans
mitting, so is it relevant with respect to VOR antenna?=C2- b. What is an
Antenna Analyzer and how does it work?=C2- (in 5 words or less)
TIA for VOR Antenna 101
-Jeff
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