[RFI] RFI into OTA TV antenna with amp

[Mike NA6MB]

Dish satellite TV is having a conflict with CBS and has dropped 
(supposedly temporary) CBS Channel 8 here in San Diego.
I put up an Over The Air receiving antenna to get the station back.

It is:
https://www.amazon.com/gp/product/B071V7SV6P/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

It work fairly well. It is at about 25 feet and is below my DB-18 
SteppIr at 60 feet.
I just noticed today that when I keyed my transmitter on 15 and higher 
frequencies, the picture dropped out and I get a "No Signal" indication 
on the TV.

Pretty sure the ham RF is overloading the antenna amp.
Would toroids on the TV feed-line help, work on the amp or just live 
with it?
-- 

Thanks,
Mike
NA6MB