Dual Transponders?

Ok, Im not talking about the commercial carriers. But why would a general
aviation plane have dual transponders? Why waste the panel space? So they
go
tits up that often in flight where its necessary?

Scott

I dont know either, but when I was at the avionics shop picking up my plane
recently, there was a pressureized C-210 they had just starteding working and
let me peek inside. It had dual garmin 330 x-ponders, garmin 430,530 and an
MX20, it also had some other nifty stuff like a flight navigator and so on.


Scott Aron Bloom wrote:

Ok, Im not talking about the commercial carriers. But why would a general
aviation plane have dual transponders? Why waste the panel space? So they
go
tits up that often in flight where its necessary?

Scott

Ive seen a couple of GA aircraft with em, and more than plenty of biz
jets that DONT.. I dont know the rhyme or reason. If I was limited on
panel space, Im sure a 2nd xponder would be low on the list.

Dave

Venus wrote:
I dont know either, but when I was at the avionics shop picking up my plane
recently, there was a pressureized C-210 they had just starteding working and
let me peek inside. It had dual garmin 330 x-ponders, garmin 430,530 and an
MX20, it also had some other nifty stuff like a flight navigator and so on.


Scott Aron Bloom wrote:


Ok, Im not talking about the commercial carriers. But why would a general
aviation plane have dual transponders? Why waste the panel space? So they
go
tits up that often in flight where its necessary?

Scott

They make transponders that share one control panel. Some of our EMB-120's
have a dual transponder single control panel set up.

Bill
"

"Venus" wrote:
it also had some other nifty stuff like a flight navigator

What's that?
--
Dan
C172RG at BFM

How does a second transponder fit in to the datastream? Aren't they both
transmitting the same data at the same time on the same frequencies? Wont that
interefere with itself?

Jose

--
(for Email, make the obvious changes in my address)

"Teacherjh" wrote in message
...

How does a second transponder fit in to the datastream? Aren't they both
transmitting the same data at the same time on the same frequencies? Wont
that
interefere with itself?


The second would only be used if ATC reported a problem with the first one.

So one is not really doing anything ..is it just left off untill the first
quits?


"Steven P. McNicoll" wrote:

"Teacherjh" wrote in message
...

How does a second transponder fit in to the datastream? Aren't they both
transmitting the same data at the same time on the same frequencies? Wont
that
interefere with itself?


The second would only be used if ATC reported a problem with the first one.

"Jeff" wrote in message
...

So one is not really doing anything ..is it just left off untill the first
quits?


Yup.

Why put it in the panel. I'm sure you could mount it between the seats.


"Venus" wrote in message
...
I dont know either, but when I was at the avionics shop picking up my
plane
recently, there was a pressureized C-210 they had just starteding working
and
let me peek inside. It had dual garmin 330 x-ponders, garmin 430,530 and
an
MX20, it also had some other nifty stuff like a flight navigator and so
on.


Scott Aron Bloom wrote:

Ok, Im not talking about the commercial carriers. But why would a
general
aviation plane have dual transponders? Why waste the panel space? So
they
go
tits up that often in flight where its necessary?

Scott