[The T.I.B.]

My Plip is slow, it works ok but you have to wait 20 seconds before it will plip again, also it doesn't often work from the passenger side. In fact it's generally a bit ropey.

I know it's a common problem but is there a fix other than getting a new plip & receiver? The batteries in the plip are brand new and the receiver is getting battery voltage and has never been damp.