Since my last posting, I
have now been able to get in channel 20 with a dedicated HDB91x antenna, on my new taller mast pipe I installed as detailed in my other thread here.
http://forum.tvfool.com/showthread.php?t=15701
Now, I just have to find a way to join this antenna to my main HDB91x that gets all my other UHF channels. Tin Lee wants $170.00 U.S. for an AC7, and that's just too much for me at this time. So, I'm on the hunt for a channel 20 Jointenna again.