S4 antenna amplifier booster question
#1
Drifting
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Anyone know if the single wire coming off from an S4 antenna amplifier booster is a positive power wire or a ground?
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#3
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Correct
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Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
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Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
![thumbsup](https://rennlist.com/forums/graemlins/bigok.gif)
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
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#4
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The other end should be hooked to an antenna or amp power connection on the radio that provides power when the radio is on. The antenna amp lead is usually bonded to the antenna coax lead.
#5
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Can I just hook this to switched 12v power and call it good? My radio has a 300ma limit on its output to the amp.
#6
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Mmmmwhat does the one thing have to do with the other? I am concerned you've misunderstood... Your radio should have a "amp/trigger" 12V output wire that signals an amp to turn itself on (it does not power the amp) - or (in this case) feeds 12V to the powered antenna. As far as I know, you can split that output to feed both the amp and the antenna.
#7
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Mmmmwhat does the one thing have to do with the other? I am concerned you've misunderstood... Your radio should have a "amp/trigger" 12V output wire that signals an amp to turn itself on (it does not power the amp) - or (in this case) feeds 12V to the powered antenna. As far as I know, you can split that output to feed both the amp and the antenna.
I figure I can hook it to a new fused switched 12v wire from the ce panel and then eliminate any possibility of it overdrawing from my radio.
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#8
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I would take it from the CE panel as you have mentioned. I think the antenna amplifier uses more than 300ma. It is enough to trigger the amp to ON and that is it's main purpose. Does the unit not have another output for an electric antenna/amplifier?
Another option is to have that output (amp turn-on) trigger a relay, in case you want other units powered/triggered when the stereo is turned on. Would need a fused hot supply from the CE panel and proper ground of course.
Cheers!
Carl
Another option is to have that output (amp turn-on) trigger a relay, in case you want other units powered/triggered when the stereo is turned on. Would need a fused hot supply from the CE panel and proper ground of course.
Cheers!
Carl
#9
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nope. not confused. I don't know the power draw of the booster amp in the base of the beesting antenna. I do know that the amp/trigger wire 12v output on my new radio has a 300ma current limit and I don't want to cause issues. I am already using that signal wire output to drive the on/off for my subwoofer amp.
I figure I can hook it to a new fused switched 12v wire from the ce panel and then eliminate any possibility of it overdrawing from my radio.
I figure I can hook it to a new fused switched 12v wire from the ce panel and then eliminate any possibility of it overdrawing from my radio.
#10
Nordschleife Master
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Just wire a cheap 12v relay to the amp trigger output of the head unit which applies switched 12V to the antenna and audio amplifiers when the (blue?) signal wire is activated by the head unit
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#11
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Originally Posted by Hilton
Just wire a cheap 12v relay to the amp trigger output of the head unit which applies switched 12V to the antenna and audio amplifiers when the (blue?) signal wire is activated by the head unit ![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
It is a blue wire and I am using it for the sub amp triggering.
#12
Nordschleife Master
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I don't know what the power draw for the antenna amp is, but it's not much. I'm using the Power Antenna lead off of my Alpine head unit to run it. It works fine, even though it's not supposed to be used for that.