Audio Panel for Handheld

I have a panel mount Microair transceiver and Xcom Intercom in my
homebuilt. I also take along a Vertex handheld transceiver when I fly.
Does anyone know of a small, (space is very limited), audio panel that
would
allow me to switch between the Microair and handheld?

I did a three part series in Kitplanes a couple of years ago on how to
homebrew your own audio panel for situations exactly like this.

BE AWARE OF A GLITCH IN THE MICROAIR radio that requires the key line to be
within 0.5 volts of ground in the "keyed" mode. Don't go doing any diode
switching with your audio panel design or the sucker won't key correctly.
Standard aircraft specification, by the way, is 3 volts or less is keyed,
more than 3 volts is unkeyed.

Jim



wrote in message
ups.com...
I have a panel mount Microair transceiver and Xcom Intercom in my
homebuilt. I also take along a Vertex handheld transceiver when I fly.
Does anyone know of a small, (space is very limited), audio panel that
would
allow me to switch between the Microair and handheld?

RST Engineering wrote:
wrote...

I have a panel mount Microair transceiver and Xcom Intercom in my
homebuilt. I also take along a Vertex handheld transceiver when I fly.
Does anyone know of a small, (space is very limited), audio panel that
would allow me to switch between the Microair and handheld?

I did a three part series in Kitplanes a couple of years ago on how to
homebrew your own audio panel for situations exactly like this.

http://www.rst-engr.com/kitplanes/KP0208/KP0208.htm

Thanks, Darryl. I am up to my hiney in hippos this morning and was going to
look this series up later this afternoon and post it. Thanks for beating me
to it.

Jim


"Darrel Toepfer" wrote in message
...


http://www.rst-engr.com/kitplanes/KP0208/KP0208.htm

RST Engineering wrote:

Thanks, Darryl. I am up to my hiney in hippos this morning and was going to
look this series up later this afternoon and post it. Thanks for beating me
to it.

You mentioned a 3 parter, only you would kneaux if its complete...

It gave me a chance to grab the details on the magneto buzz box...

Its easy... just link the handheld into the second comm input on the
XCOM Intercom and then use a double pole double throw toggle switch to
select which radio you want the mic to talk on. There is information on
the XCOM website or you can email them directly for info. Regards Michael

wrote:
I have a panel mount Microair transceiver and Xcom Intercom in my
homebuilt. I also take along a Vertex handheld transceiver when I fly.
Does anyone know of a small, (space is very limited), audio panel that
would
allow me to switch between the Microair and handheld?

Thanks Michael, I will check it out.