I have the Filter already, I guess the proper gain on 14-36 would be what we are really after.correct, the db4e and db8e were optimized for up to ch 51 (698 MHz top end).
While the db4 and db8 were the previous versions optimized up to ch 69.
To date, I think the only antennas you'll find optimized for 14-36, the latest spectrum,
are the DIY designs provided by holl_ands and other hobbyists.
Maybe Televees has something more recent that doesn't rely on external filtering?