Search found 7 matches

by tjhickey
Fri Oct 12, 2018 1:35 am
Forum: Autopilot
Topic: GRT Servo Install in Murphy Rebel
Replies: 0
Views: 159746

GRT Servo Install in Murphy Rebel

I have purchased GRT servos to install in my Murphy Rebel (just because I can). These will be driven by my GRT Sport. I am a little concerned about the apparent drag from the servos. The Murphy is not what I would call "trim stable" In other words it does not eagerly try to return to a tri...
by tjhickey
Sun Nov 23, 2014 2:36 am
Forum: Sport SX
Topic: Garmin GTR200
Replies: 6
Views: 17149

Re: Garmin GTR200

By looking at the pin-out listings of both the GRT Sport, and the Garmin GTR200, it looks like I should run a wire between pin 37 on the Sport (labeled as TX4), to pin 24 of the Garmin GTR200, labeled as RS232 In. The Garmin pin-out shows a pin 23 as a RS232 out. Given that the GTR200 is just a com,...
by tjhickey
Sun Nov 23, 2014 2:19 am
Forum: Sport SX
Topic: Garmin GTR200
Replies: 6
Views: 17149

Re: Garmin GTR200

Thank You for the advice. EE is not my native language. All the help I can get is appreciated. I am quite thankful that I an not trying to hook up one of those quite fancy panels you see on display at Oshkosh. Mine is pretty simple, but will be a chore for me.

Tim
by tjhickey
Sun Nov 23, 2014 1:24 am
Forum: Sport SX
Topic: Garmin GTR200
Replies: 6
Views: 17149

Re: Garmin GTR200

Good Point. I guess it is being done because it is kind of like "Showing Off". One of those "Watch This" moments.

Tim
by tjhickey
Sat Nov 22, 2014 4:05 pm
Forum: Sport SX
Topic: Garmin GTR200
Replies: 6
Views: 17149

Garmin GTR200

This is probably a very basic question, and will reflect my lack of understanding of many things, but here we go: I am making up the wiring diagram for my Murphy Rebel project. I am using the Sport 8.4" with the EIS400, the Garmin GTR200, and the Sandia 165 transponder. I am struggling with the...
by tjhickey
Fri Nov 21, 2014 1:33 am
Forum: EIS Installation
Topic: Mag Timing Check.
Replies: 3
Views: 15192

Re: Mag Timing Check.

Interesting point about the EFIS or the interconnect wiring failing and shorting to ground. Your point out that the resister is there to prevent grounding the mag. I had been planning to tap into both mags so that on a mag check I would maintain the display of the RPM, but maybe the wiser move is to...
by tjhickey
Wed Nov 19, 2014 10:59 pm
Forum: EIS Installation
Topic: Mag Timing Check.
Replies: 3
Views: 15192

Mag Timing Check.

Does the installation of a resister tapping into the P lead of a magneto to the EIS unit interfere with the conducting of a magneto timing check? Typical procedure is to hook up the timing indicator, turn the mags to "ON" (which is really un-grounding the mags) ((and yes, the sparkplugs ar...