The upper end of the spectrum was reused, the digital channels I believe are in a lower part, betweern the old channel 2 and the regular ones.
One could look it up, but me too lazy now.
Anyway, the batwing has a built in preamp that was made with parts that were noisy in nature, combined with age they need to be cranked up and one must hope.
Available now are 30 plus DB preamps that are 120 vac powered, they can be easily modified for 12 volt use.
You can add one of these and it gets much better, ours in our front yard with brand new tv got garbage for reception, added the amp and w get everything without lifting the wing, great investment of $30.00
Tony & Lori
1989 Country Coach Savannah SE