Erich_Weaver(at)URSCorp.c
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 Posted: Wed Aug 02, 2006 9:59 am Post subject: avionics ordering tip |
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Here is a small tip for those of you considering ordering a GRT EFIS along
with Garmin avionics from Stark Avionics.
For a small fee, Stark provided the wiring harnesses for my SL-40 comm,
GTX-327 transponder, and PS Engineering intercom with lead lengths I
specified. They did a nice neat job and I was glad I did it. However,
what I didnt realize at the time was that the EFIS and SL-40 can talk to
each other using serial input and output so that multiple airport
frequencies can be automatically loaded into the comm for easy access. To
do this, you will need to specifically request from Stark that the harness
for the comm include the serial input and output pins. Otherwise, if you
want to make use of this feature, you will have to undo Starks nice neat
job and add the wire leads in yourself.
Similarly, as desired, the EFIS can automatically switch the transponder
from standby to on when it determines your flight has begun, but this
requires an additional serial input lead to the transponder, which also
must be specifically requested to be included in the harness.
You can obviously do this all yourself after the fact, but if you are
having Stark do the harnesses anyway, why mess up his nice neat job and
re-do it?
The above probably also applies to other EFIS brands, and possibly other
avionics vendors, but I have no experience with those.
regards,
Erich Weaver
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