john300exc
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- Sep 22, 2009
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D-180 When the PTT is used the menu appears on the EFIS. No other abnormality noted when the mike is keyed.
unusual? any solutions?
Thanks, John
unusual? any solutions?
Thanks, John
PTT & Menu appears
- Thread starter john300exc
- Start date
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- Mar 23, 2005
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- 13,226
Definitely not usual, and for anyone out there that thinks that RF stuff isn't voodoo magic, here you have it. If you have the ability to move any antenna wires that might be going by the FlightDEK-D180 (or even if it isn't, if you can move it at all), that's probably the only thing I can think of for you to try. The working theory here, by the way, is that the circuit board that the buttons contact are someone acting as an antenna. Never heard of this sort of issue though. Get in touch with support at 425-402-0433 or support at dynonavionics dot com to send your unit in if playing with wires doesn't help.
john300exc
New Member
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- Sep 22, 2009
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I'll check the wiring from the com, should I try some type shielding?
JW
JW
PhantomPholly
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- Jul 27, 2007
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A "competitor" had similar issues.
This kind of filter between the unit connector and the control head solved it.
Caution: This is not the exact same problem or the same device. This may do nothing to resolve your individual problem, and may cause other issues.
This kind of filter between the unit connector and the control head solved it.
Caution: This is not the exact same problem or the same device. This may do nothing to resolve your individual problem, and may cause other issues.
- Joined
- Mar 23, 2005
- Messages
- 13,226
We have that kind of filtering and more already in the connector and unit, so I doubt it would help. We really have zero known EMI issues with the D100 products.
This is a very odd situation for sure.
This is a very odd situation for sure.
jakej
Well-Known Member
I'm having similar issues on a composite airplane.
Com 1 PTT = D120 alarms, EGT/CHT shows -99C. System recovers and all parameters read correctly after settling down in flight.
Some radio frequencies worse than others.
Com 2 PTT = no issues.
Swapped antennas (all coax is RG400 low loss) - problem is still there with Com 1
Tried 'clamp on' ferrites to Dynon wiring looms and Com antenna cables but no real change.
The answer may be that the Com 1 is just below (.5") the EFIS and that there is EMI into the wiring loom. I'll try some MU metal shielding and willadvise this group.
HT
Jake J
Com 1 PTT = D120 alarms, EGT/CHT shows -99C. System recovers and all parameters read correctly after settling down in flight.
Some radio frequencies worse than others.
Com 2 PTT = no issues.
Swapped antennas (all coax is RG400 low loss) - problem is still there with Com 1
Tried 'clamp on' ferrites to Dynon wiring looms and Com antenna cables but no real change.
The answer may be that the Com 1 is just below (.5") the EFIS and that there is EMI into the wiring loom. I'll try some MU metal shielding and willadvise this group.
HT
Jake J