Date:         Wed, 27 Jul 2011 06:48:11 -0700
Reply-To:     Rocket J Squirrel <camping.elliott@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Rocket J Squirrel <camping.elliott@GMAIL.COM>
Subject:      Re: Radio causes buzzer to go off
Comments: To: "Frederick M. Wasserstein" <wasserstei@WINDSTREAM.NET>
In-Reply-To:  <005101cc4c61$0081ff80$0185fe80$@windstream.net>
Content-Type: text/plain; charset="UTF-8"

This is an interesting one. Without studying the wiring diagram (which
means I'm just idly sitting by, making idle observations, keep moving
folks, nothing to see here) I wonder whether the buzzer is going off due
to loading on the battery, or due to RFI. Do you have a dummy antenna
you can connect to the radio? If the buzzer doesn't buzz on tx then it's
RFI. If it does then it's a battery loading issue. Neither seems very
likely to me, so this is a mystery.

The battery loading could be mimicked w/o a dummy antenna by connecting
a resistor in place of the transceiver to duplicate the 8A current draw
-- a 1.5 ohm guy but it needs to be a pretty hefty resistor as 8 amps @
12V = 96 watts. Or see if a 100 watt 12 volt light bulb can be used.

Now I'll shut up and let someone with a better working knowledge of how
the door buzzer works chime in.

On Wed, 2011-07-27 at 08:27 -0500, Frederick M. Wasserstein wrote:

> Thanks for all the responses on the headlight issue, when the money tree has
> fall  bills off I will buy a kit to fix the problem. New one for you guys, I
> am an Amateur Radio operator and have just installed a radio that pulls
> around 8 amps on transmit. I hooked the + wire to the fuse for the
> refrigerator (Never run on 12 volt I use the propane or 120v when hooked up
> at a campground) on the drivers door post and the - to the fuse box mounting
> screws for the ground. I get power just fine but when I transmit The key in
> lock door buzzer goes off. I have had trouble in the past with it going off
> a random times in the past, but the gauges and every thing indicates no
> problems with  anything. When I transmit the buzzer sounds the whole time (
> which is quite annoying) With the Westfala it is very hard to run new wire
> from the battery in back to where the radio is mounted. The heavy wire for
> the refrigerator (10 guage I think) should be able to handle the load, so I
> don't have a clue to the cause any suggestions?
>
>
>
>
>
> Mike Wasserstein (KB0DNP)
>
> Proud owner of "Sammy"
>
> 1982 Vanagon Diesel Westfala Camper