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Old 9-Oct-2016, 1:39 AM   #23
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,753
Quote:
so just to check in, Ill probably pick up a 91xg and replace the db 8.
I think it is worth a try if you are willing to experiment, but I can't guarantee it will improve your reception. The 91XG does have a gain peak at the high end which pulls ch 40 up, and the front end can be tilted up to catch the signals coming down from the peak.
http://www.hdtvprimer.com/antennas/comparing.html

Look at the Net Gain curves M and P for the 91XG and DB8.

Because the KNSD signal is scattered by the mountain peak, the wave front of the signal is non-uniform, so it will have hot spots and cold spots. It is worth the trouble to try slightly different locations as suggested by Tower Guy, not only of height but also left-to-right horizontal movement. Antenna installers call it "walking the roof."
http://forum.tvfool.com/showpost.php...5&postcount=34
http://forum.tvfool.com/showpost.php...6&postcount=35
Quote:
Will a cm 7777 or 7778 be helpful or just the antenna replacement?
The 7778 has about the same gain as your CPA19 unless it is defective. The 7777 has more gain and might help.
Quote:
Also would it be worth it to point to any of the nbc stations to the north?
I doubt it. KNBC is a LOT weaker.
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Last edited by rabbit73; 9-Oct-2016 at 2:12 AM.
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