Wildlife VHF Telemtry

Hi there
I am a (poor) wildlife researcher and I am trying to re-pot (replace batteries) in small wildlife VHF tracking collars (tone beepers, and save research funds); however, I have a problem. I have replaced the batteries using the exact same brand and type Fujitsu CR1/3N, the problem is the transmission strength is no where near as strong as what they used to be. Strangely though if I touch the battery with my fingers, the transmission strength is very good. Could someone please explain to me why this is so and a possible solution to increase the transmission strength.
Many thanks
Cam

If the batteries are as good as the originals, it sugests you have disturbed the antenna connection when opening the device. By placing your finger on the battery you are acting like an antenna yourself although not as good as the original would be of course. Either it is disconnected or you have disturbed the number of turns on the antenna if it is a helical type.

Brian.

Thanks Brian
as I have now discovered, and also not being the original user, the manufacturer had made a mistake and as stated on the collar 151.2060 is not the right MhZ, it is actually 151.2080
cheers mate for your reply