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August 7th 09, 04:32 PM
posted to rec.radio.amateur.antenna
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How Can you Make a VHF TV Antenna for an Attic
Rikoski wrote:
"How critical was the aiming of the antenna?" Depends on the number of wavelengths in a side at the frequency you are trying to receive. Arnold B. Bailey in "TV and Other Receiving Antennas" gives data for a typical rhombic on page 528. He shows a beamwidth of about 30 fegrees with deep nulls on either side of the center lobe. Gain is 14.5 db over a dipole or less. The rhombic is comparable to the parabolic antenna Bailey shows on page 525. Best regards, Richard Harrison, KB5WZI |
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