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Old July 14th 07, 10:04 PM posted to rec.radio.shortwave
RHF RHF is offline
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First recorded activity by RadioBanter: Jun 2006
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Default (OT) : "Off-Topic" FM & TV Antenna Questions

OK here are a few "Off-Topic" FM & TV Antenna Questions

I have seen two general types of Multi-Element Yagi type TV Antennas

1 - The most common is the Multi-Element Yagi type TV Antenna
with "Flat" Straight-Line Elements.

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2 - The less common is the Multi-Element Yagi type TV Antenna
with slightly "Bent" Canted "Vee" - about 15 Degress Elements.
The Tips of the Elements pointed slightly to the Front of the
Antenna. See the Log Periodic Dipole Array (LPDA) Image
http://www.hdtvprimer.com/ANTENNAS/G...yG.html#logyag

Question : What does the "Canting" of the Antenna Elements Do ?

? Does it Broaden the Angle of Reception {Capture Area}
of the Antenna over the "Flat" Straight-Line Elements ?

? -Or- Does it Narrow the Angle of Reception {Capture Area}
of the Antenna over the "Flat" Straight-Line Elements ?

? What about Front to Back (F2B) vice Side Signal Reception ?
* "Flat" Straight-Line Elements -vice "Canted" Elements
? Which has the better Front and less Side Reception ?
? Which has the good Front and fair Side Reception ?


* * * New Set of Questions * * *

The common Multi-Element Yagi type TV Antenna which
has "Flat" Straight-Line Elements.

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# 1 - When mounted Horizontal "Flat" is very Directional with
a good Front-to-Back Signal and very good attenuation of the
Side Signals.

# 2 -if- It is mounted Vertical {With the Tips Up-and-Down}
it is still some what Directional with a good Front-to-Back
Signal and now has fair Side Signals making it closer to
an Omni-Directional Antenna with some Attenuation of
the Signals coming from the back-end.

Question - Are Both # 1 and # 2 Correct ?
- - - If Not - Why Not ?

(OT) - Cause I know it is not Shortwave -but- at lease it
is not : Religion, Politics or Sex.

i want to know ~ RHF