clinic - sbe chapter 24 - madison, wi · 2007-11-24 · clinic tuesday october 9th 2007 shively...
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Broadcaster’sClinic
th 2007Tuesday October 9 Shively Labs
Shively Labs
460 ft
FM 200 ft
300 ft
Reference
Height above reference / Tangent of depressionAngle = distance out from antenna200 ft / tan 60 degrees =115 ft
60 deg.13 KW
2 KW
Full wave spaced antennas 60 degrees / No. of bays = angle of 1st null
200 ft / tan 20 degrees =550 ft
13 KW
20 degrees
1/2 WaveHorizontal
Dipoles
Full WaveVerticalDipoles
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Shively Labs
Shively Labs
13 KW
55 deg.
0.13KW
Questions
Pascal’s Triangle 1
1 1 1 2 1
1 3 3 1 1 4 6 4 1
1 5 10 10 5 1 1 6 15 20 15 6 1
1 7 21 35 35 21 7 1 1 8 28 56 70 56 28 8 1
1 9 36 84 126 126 84 36 9 1
Binomial progression for 6 bay antenna
1 5 10 10 5 1 Normalize to 1
0.1 0.5 1.0 1.0 0.5 0.1
Shively Labs
Shively Labs
Shively Labs
Shively Labs
Shively Labs
Questions
Directional Antenna
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Final QuestionsShively Labs
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