Hi all,

Anyone using this simple and relatively cheap transponder care to share
their experience? Some questions I have:

1) How's the warm-up time and signal for ATC's radars?
2) Did you use the adapter for the King trays? If so, how's the fit
(does it stick out) and the ease of installation?
3) Is there a difference between using the adapter and having it
rewired?

Thanks in advance for any info.

Marco

Marco, I installed a Garmin GTX320A as a replacement for my old Narco
using the Garmin adapter. The installation took all of 5 minutes, the
adapter is invisible (looks like a custom install), there is effectively
no warm-up time on a 100% solid state xponder like the GTX320A, and I
have had no complaints from ATC.

You WILL likely still have warm-up time for your altitude encoder, and
make sure your coax and connectors meet Garmin's specs.

Rip

Marco Leon wrote:
> Hi all,
>
> Anyone using this simple and relatively cheap transponder care to share
> their experience? Some questions I have:
>
> 1) How's the warm-up time and signal for ATC's radars?
> 2) Did you use the adapter for the King trays? If so, how's the fit
> (does it stick out) and the ease of installation?
> 3) Is there a difference between using the adapter and having it
> rewired?
>
> Thanks in advance for any info.
>
> Marco
>

We have one in our plane... no complaints at all.

-Dico

Marco Leon wrote:
> Hi all,
>
> Anyone using this simple and relatively cheap transponder care to share
> their experience? Some questions I have:
>
> 1) How's the warm-up time and signal for ATC's radars?
> 2) Did you use the adapter for the King trays? If so, how's the fit
> (does it stick out) and the ease of installation?
> 3) Is there a difference between using the adapter and having it
> rewired?
>
> Thanks in advance for any info.
>
> Marco

rq3 wrote:
> Marco, I installed a Garmin GTX320A as a replacement for my old Narco
> using the Garmin adapter. The installation took all of 5 minutes, the
> adapter is invisible (looks like a custom install), there is effectively
> no warm-up time on a 100% solid state xponder like the GTX320A, and I
> have had no complaints from ATC.
>
> You WILL likely still have warm-up time for your altitude encoder, and
> make sure your coax and connectors meet Garmin's specs.

Thanks. Did you get a 337 and retest it for certification? If so, how
much did your avionics guy charge?

Marco

Marco Leon wrote:
> rq3 wrote:
>
>>Marco, I installed a Garmin GTX320A as a replacement for my old Narco
>>using the Garmin adapter. The installation took all of 5 minutes, the
>>adapter is invisible (looks like a custom install), there is effectively
>>no warm-up time on a 100% solid state xponder like the GTX320A, and I
>>have had no complaints from ATC.
>>
>>You WILL likely still have warm-up time for your altitude encoder, and
>>make sure your coax and connectors meet Garmin's specs.
>
>
> Thanks. Did you get a 337 and retest it for certification? If so, how
> much did your avionics guy charge?
>
> Marco
>
Yes, I filed a 337 and recerted the xponder. My local avionics shop gets
$275 for a complete pitot/static/xponder check.

Rip