Welcome to the forum, MikeBear:
I couldn't find any specs for it either. Why don't you try it anyway?
Tin Lee can make an AC7 custom single channel bandpass filter for real channel 20.
http://www.tinlee.com/Matv_filters.php?active=3
http://www.tinlee.com/MATV_headend.p...IGNALINJECTORS
http://www.tinlee.com/PDF/AC7-custom...kup%20Info.pdf
http://www.tinlee.com/pricing.php?active=3
Call them and talk to one of their engineers and email your tvfool report to him.
http://www.tinlee.com/contactUs.php
I think your chances are pretty good. WUWB NM 4.9 dB has co-channel interference from WOTV NM -17.7 dB (difference of 22.6 dB; must be 15.5 or more), and second adjacent channel interference from WNEM NM 47.6 dB (difference of 42.7 dB; must be 44 or less) on channel 22.
Antenna and Installation Advice Needed
http://forum.tvfool.com/showthread.php?t=290
mulliganman used an AC7 for Fox on real channel 49:
question regarding overamplification
http://forum.tvfool.com/showthread.php?t=15025
Do you think it's possible to get this channel?
http://forum.tvfool.com/showthread.php?t=15636
http://forum.tvfool.com/showpost.php...29&postcount=9