tvi is the filter . stay with cobra . galaxy . the 29 or 959 . your best ant, will be steel whip . you don`t need tvi on just radio. if so your radio need to be tuned. 2 meter kenwood . need to past test have a extra help you. you can take a voice test.
thanks for the quick reply. found out it has a liland elec. motor 110/220 1725 rpms amps 20/10 cont.duty . the tank has 1969 on it trying to clean plates to read off of them will post pics. when i find out how off cell phone. thanks