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Found out an interesting quirk on this caller setup. Unknown to me my 12V battery which supplies the reciever (see post at top of topic) had ran low, but with enough power to light the red power light on the unit, my problem was when I would turn on the transmitter the green signal light would not light like normal. My first ASSumption was the unit was bad so I bought another complete unit only to find out all I needed was a freshly charged battery! But I added an upgrade on the transmitter side on my new unit. I bought one of Radio Shack's headphone volume controls and installed it in the line between the old mic line and my 1/8" male connector. Now I have much better volume control than what I was getting with the RCA RP-5007.

[QUOTE="motnusa, post: 111311, member: 2035"] Found out an interesting quirk on this caller setup. Unknown to me my 12V battery which supplies the reciever (see post at top of topic) had ran low, but with enough power to light the red power light on the unit, my problem was when I would turn on the transmitter the green signal light would not light like normal. My first ASSumption was the unit was bad so I bought another complete unit only to find out all I needed was a freshly charged battery! But I added an upgrade on the transmitter side on my new unit. I bought one of Radio Shack's headphone volume controls and installed it in the line between the old mic line and my 1/8" male connector. Now I have much better volume control than what I was getting with the RCA RP-5007. [/QUOTE]

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