>As my panel is optimised for a 6.25" wide
>avionics stack the only transponder that seems
>to fit the bill looks to be the Trig TT31
>transponder. Has anyone else looked into this
>yet? If so what conclusions have you come to?
Nigel - my panel is still in a "soft" state so I
don't have your contsraints, but of those I've
looked at under =A32k I am leaning towards the
=46ilser TRT800 which has the advantage of a
built-in alticoder. Both the Becker
BXP6401-2-(01) and the TRIG TT31 need an external
coder which adds to the cost. The Becker is the
shortest at 205mm and the Filser the lightest at
600g - the Trig is 1350g but puts out 240W
compared to only 100W for the Filser.
Incidentally the Garmin GTX328 while too long for
a Europa panel at 286mm also lacks the extended
squitter needed for ADS-B, so it's theoretically
less future-proof than the others. The Filser is
the only one that provides an active/standby
squawk display like the typical comms radio, and
that's about the only useful feature I see
missing from the TRIG. Filser also do a TRT800A
which seems to be much the same unit as the
TRT800, re-packaged 6.25" wide, so you might
consider that one.
As an electronic engineer, the impresssion I have
of the TRIG and the people who developed it is
that it is well designed and should be a solid
performer, but I have no hard facts or direct
experience to back that up.
I attach a PDF of my comparison sheet - at the
time I prepared it I wasn't able to get anything
about the Becker BXP6403 apart from a new-product
annoucement.
regards
Rowland
--
| Rowland Carson LAA #16532 http://home.clara.net/rowil/aviation/
| 1080 hours building Europa #435 G-ROWI e-mail <rowil@clara.net>
|