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I am looping up several Video Doorphones,VDP together. The connection goes like this: The RG59 goes to the 1st VDP and twisted togther with another RG59 which this RG59 goes to the 2nd VDP. This goes for for about 6 VCPs. Then the video is feed a B/W TV which is 20 storey below. The video for the 1st VCP is good but the contrast for 2nd to 6th VCPs get fader and fader. The camera used is CCTV camera of 1 Vp-p.
The RG59 loops togther with CAT5 cable carry voice and data, and 22AWG for DC supply of 15V ( drops to 9v at the 6th VCP).
Can anyone help me to solve this problem as the present cabling can't be changed.Thanks.
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Topic - Video Problems - Han 21:30:40 03/23/00 (0)
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