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Hal,
I have contacted the software team at Chelton and will let you know the
outcome asap. I will tell you that I haven't heard of any problems with
the stormscope displaying properly due to software. Any and all problems
have been either installation related and on two occassions the WX-500 was
defective. Usually, it is mis-wired or the jumpers haven't been set
properly on the WX-500.
Chelton has, in fact, passed the full level of L3 qualification testing
with the the L3 Stormscope. This testing was extensive and was performed
at L3's engineering facility with Chelton's software team present last
fall. There is nothing wrong with the display of strike data on the
Chelton system and it has been approved by L3.
I suspect the field
service tech from L3 was having trouble running his test set. The
stormscope sends strikes with a heading parameter when installed properly and
with the proper jumpers in place. The heading parameter is the heading the
strikes are relative to. If the stormscope has valid heading info (from
one of several sources, including the EFIS), then the strikes come in with a
proper mag heading attached to them. If the stormscope has no heading
info, the aircraft will use its own heading to display the strikes. This
is correct operation. I suspect he has overridden the stormscope's source
of mag heading or not provided the proper input from his test set for mag
heading. It is unfortunate that William jumped to conclusions and condemed
the improper operation of your Chelton instead of discussing his findings
with his co-workers back at L3.
In any case, I am double checking everything with Chelton to verify
everything on our end. Also, I spoke to a customer Sat. evening just
before I left the fly-in that has the WX-500 hooked up with his Chelton and a
MX-20. He has over 200 hours on the system and verified that when he
receives strike information, it displays (correctly) on both displays in
identical quadrants.
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