I live approx 30mi NW of Baltimore in 21158 at high elevation. Im using a CM4228 going to a CM7777 and then to power supply and out to TV.
I get 97/98 signal strength and am able to get 2,4,5,7,8,9,11,20,24,45,54,etc. but under no circumstances can I get even a sniff from 13 (WJZ). Paul Garnet (Engineering at JZ) suggested that I join the forum and post with the hope that someone else had encountered what I had.
Initially Paul thought an FM Trap would help (made sense since 107.7 FM is close to me) but the CM7777 has one (apparently on, there is no external switch). Ive tried multiple combinations (with/without preamp, skew, angle, etc) and consistently I get everything but JZ. We also thought the antenna might have issues with VHF but WBAL 11 comes in fine (Signal Strength 91).
Ive spend days (weeks even) trying to figure this out. Id like not to invest any more $ in a new antenna but try to make what I have work. Any suggestions are firstname.lastname@example.org