Welcome, mikecandu:
Receiving WUTV Fox 14 seems to be a common problem in your area. Have you asked your question on the Canadian forum?
ON - Hamilton, Stoney Creek, Brantford, Haldimand
http://www.digitalhome.ca/forum/129-...haldimand.html
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but it's probably CHCH that's the culprit.
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Yes, it is CHCH on adjacent channel 15, which is 54.3 dB stronger causing interference. Max allowed is 33 dB stronger.
ATSC Recommended Practice:
Receiver Performance Guidelines
Document A/74:2010, 7 April 2010
RECEIVER PERFORMANCE GUIDELINES
5.4.2 Adjacent Channel Rejection
The receiver should meet or exceed the thresholds given in Table 5.2 for rejection of first adjacent-channel interference at the desired signal levels shown above the columns therein.
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I was suspecting interference from CTV in Kitchener (13 real)
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No, not 13, it is a VHF-High channel, not UHF.
Since your antenna is facing CHCH when it is aimed at WUTV, you have a serious problem that might be impossible to fix, but I will try to give you a few ideas.
You can't use a preamp to make Fox stronger because it will be overloaded by your first 3 strong signals.
One possible solution might be to have a separate antenna for WUTV with a custom filter for WUTV from Tin Lee that would make CHCH weaker. I'm not even sure that they could design a custom single channel bandpass filter for WUTV. If they could, it would be expensive. You could talk to their engineer and email him your tvfool report.
http://www.tinlee.com/index.php
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I can't get WUTV but I get WNED (real 43) perfectly even though they are broadcasting from very similar locations.
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WNED sends 156 kW of power your way:
http://www.tvfool.com/?option=com_wr...ALLTV%26n%3d13
but WUTV only sends about 17 kW of power your way because of its antenna directional pattern:
http://www.tvfool.com/?option=com_wr...ALLTV%26n%3d17
Another possibility would be making an antenna so directional that it would reject some of the CHCH signal when it is aimed at WUTV, because they are 10 degrees apart.
Another possibility that might work is the "Two Antenna Trick, Outdoor Version" as described on the hdtvprimer.com site. It is possible to connect two antennas so that WUTV would be at a main lobe peak and CHCH would be at a null:
Example 3: Cupertino, California 95015
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The towers for Sacramento and San Jose are only 15 degrees apart, but the San Jose towers are visible on the horizon. Pointing an amplified high-gain antenna in this direction will cause both preamp overload and adjacent channel interference. Putting San Jose in a null will permit the reception of Sacramento. Set the masts 40 inches apart. Reversing the polarity of one antenna will cause the null direction to not change with frequency, and all the San Jose stations can sit in the null.
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