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Re: A4 antenna amp?
In a message dated 96-11-04 10:37:44 EST, dan_masi@MENTORG.COM (Dan Masi)
> Is the antenna actually connected? I know, this sounds like
> a dumb question, but I've done worse...
As have I. When I worked as a tech support rep, we used to ask people to
"unplug your modem from the wall, and take a look at the connector" so that
they could "discover" that it wasn't plugged in in the first place...
> Also, I've heard that
> Audi uses a non-standart antenna connector. If you're using
> an adapter, check and make sure the adapter is OK.
Yup, it's a pretty straightforward adapter - VW/Audi to the "normal" antenna.
> > I am running the Sony's "power antenna" lead to the car's
> > "antenna switch" line, and it -does- get worse when I
> > disconnect it, so I know the antenna's getting at least some
> > power.
> Interesting. I wasn't aware that the A4 had an antenna
> amplifier. Figured that the power lead was just used to turn
> on the rear speaker amp.
Nope, there is definitely a difference in signal strength when you feed the
> > The Sony lead is marked "0.1A max", and I
> > wonder if I need to supply a full 10A power feed to the antenna
> > amp somewhere as well?
> Is Sony's turn-on lead (usually blue) fused? If so, and you draw
> more current than it wants to supply, the fuse will tell you.
Nope, not fused.
> If not, and you think you may be drawing too much, check the
> voltage on that lead when it's not connected and the radio is
> on (should be very close to the car's supply voltage, 13+ volts),
> then connect it and check the voltage. If it's more than a volt
> lower when it's connected (you could also put an ammeter in series
> to tell more accurately!), consider using a relay.
Thanks, I'll try that. I have a multimeter than can handle up to 10A, but I
can never remember how you're supposed to measure amps - just that the wrong
way will blow your MM fuse. So I should connect it in series - that is, Sony
blue lead to ammeter black, ammeter red to the place where the blue lead was
plugged in before?