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Old 8-Jun-2015, 10:48 PM   #17
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,639
It is the real channel number, not the virtual number, on your tvfool report that determines what antenna is needed.

VHF-Low: Real channels 2-6
VHF-High: Real channels 7-13
UHF: Real channels 14-51

The frequency of Real channel 6 is 82 to 88 MHz; center frequency 85 MHz.

A simple folded dipole antenna for channel 6 can be made from 300 ohm twin lead. Its length can be determined by formula:



5540/85 = 65.2 inches (rabbit ears would need to be the same length, and horizontal)

If you have trouble finding 300 ohm twin lead, you can use heavy gauge solid copper wire, bare or insulated. Support it at the center; the ends are sensitive to being touched by other objects. See attachment 2.

The noise level on VHF-Low is high. It might interfere with the reception of channel 6.

You can combine it with a UVSJ, UHF/VHF Separator Joiner.
http://www.hollandelectronics.com/ca...-Diplexers.pdf
http://www.3starinc.com/uvsj_uhf_vhf...or_joiner.html
http://mjsales.net/products/tru-spec...ant=1198505857
http://www.solidsignal.com/pview.asp?p=zuvsj

Code:
UHF antenna > coax > control box > 
                                  \
                                   UVSJ > TV
                                  /
CH6 folded dipole antenna > coax >
If it doesn't work, come back and let us know. The only other ABC I see is WABC on real channel 7. The curvature of the earth starts to interfere with TV signals at 70 miles.
Attached Images
File Type: jpg Folded Dipole.jpg (59.4 KB, 4063 views)
File Type: gif folded dipole2 (2).gif (2.3 KB, 442 views)
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Last edited by rabbit73; 9-Jun-2015 at 12:19 AM.
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