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Re: OT Radio antenna (John T)
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Posted by Errin OH on October 08, 2006 at 09:12:31 from (64.12.116.74):
In Reply to: OT Radio antenna (John T) posted by BUDD on October 08, 2006 at 07:02:24:
Lets see if I get it, You want the antenna to stay up when the radio is off. If so the trouble lies in the "spliced in". You will need to disconnect the power source from the radio to the antenna. Having no idea what car or even if the power is seperate or not, this one is going to be tuff to answer. You need to see if the antenna motor (drive) has power wires to it. If so, you will have to cut them loose from the radio or it will just back feed to the radio (radio just stay on). Conntect you switch from a power source (key or not) and the wire to the antenna motor. Switch only to raise antenna. If you want to still have control of the antenna with the radio "and" an exteranl switch, you will need to add a realy. The wire from the radio would pass thru a diode. That way when you power it with the external swicth it won't feed back to the radio. This way either can raise the antenna (both off to lower). I'd run the swicth power through a diode as well not to have the radio feeding back to the rest of the vech. Now if the power source for the antenna is in the coax, well you are going to have to do some shopping. Find a device to seperate it out (dc from radio signal), put in your switching, then recombine it. If I don't get it, forget everything I just said.....
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