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Tracy's instructions say to ground all unused sensor pins. This may be
your problem if some are not connected...
Bill Bradburry
Ed, that is a worthwhile suggestion. I am going to pick up some
resistors
tomorrow. I note that the sensors are 10 to 180 ohms for temp and
pressure,
was there a reason for the suggestion of 20K?
Thanks.
Bill Schertz
KIS Cruiser # 4045
----- Original Message ----- From: "Ed Anderson" <eanderson@carolina.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Friday, June 23, 2006 9:07 PM
Subject: [FlyRotary] Re: Radio noise
Just a WAG, Bill. Could it be the oscillator of the microchip in the
EM2
generating the nose because some of the pins (tied to the sensors) are
not
a complete circuit. Might try just hooking up some 20K ohm resistors
between your sensor leads and ground just to see. Either that or
perhaps
getting feed back from the chip on your power lines suggesting a low
value
.01uf capacitor.
Ed
----- Original Message ----- From: "Bill Schertz" <wschertz@comcast.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Friday, June 23, 2006 6:42 PM
Subject: [FlyRotary] Radio noise
I am in the process of wiring up and testing each piece of electronic
equipment before putting the top on my plane which will make it much
harder to get access.
I have an SL-30 NAV/COM and SL-40 COM. The COM works, but when I turn
on
the EM-2 I get a bunch of hash (white noise). Any suggestions on
diagonstics? The EM-2 is not connected to 'all' sensors yet.
Bill Schertz
KIS Cruiser # 4045
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