Search found 79 matches

by JimB
Thu Jan 16, 2014 3:15 pm
Forum: EIS Installation
Topic: aux input sensitivity
Replies: 4
Views: 9520

Re: aux input sensitivity

That should work fine. You probably won't need any filtering and I would try it first without any (always take the easy way first!). I used this amp for several years on a fuel pressure for my EIS. Do you know how to calculate Offset and Scale Factor? There is an article in the files section of the ...
by JimB
Tue Jan 14, 2014 9:48 pm
Forum: EIS Installation
Topic: aux input sensitivity
Replies: 4
Views: 9520

Re: aux input sensitivity

Yes it is too small. 50mv is only 1% of 5 volts. So your input would vary less than 1% of expected input range. You may also find that there is noise in the aircraft that could be a significant factor - it may be as much or more than your signal. Two possible solutions. You can put a amplifier on th...
by JimB
Wed Oct 30, 2013 1:47 pm
Forum: EIS Installation
Topic: Misc Questions
Replies: 1
Views: 5041

Misc Questions

Investigating another problem the other day, I measured the regulated 12 volt output of my EIS (red/green wire). It measured 10.5 volts when the battery buss (power to EIS) was 12.5. Is this normal? Shouldn't it be close to 12 volts? I ocassionally see variation in fuel flow which I don't understand...
by JimB
Wed Oct 30, 2013 1:40 pm
Forum: EIS Installation
Topic: Display
Replies: 1
Views: 5574

Display

I've noticed that when I select "Set Limits" (pushing the left and center button simultaneously), the display goes into a reverse mode. In other words, the characters become a light character on a dark background. I think EIS stays in this mode until powered off and back on again. The disp...
by JimB
Fri Sep 20, 2013 1:34 pm
Forum: ADS-B/Weather/Traffic
Topic: XM Weather weight
Replies: 1
Views: 4171

XM Weather weight

Does anyone know how much the GRT XM WX processor and WXWorx receiver combination weighs? I'm considering relocating for CG reasons and need the weight which I can't seem to find in my documentation or on the website.

Thanks

Jim Butcher
by JimB
Mon Sep 09, 2013 2:09 pm
Forum: Sport SX
Topic: HSI Background
Replies: 2
Views: 4691

Re: HSI Background

One other trick Carlos showed me. When flying an ILS, once you have the needles centered, keep the flight path marker on the airport. This makes compensating for wind easy and makes keeping the needles centered easy. Of course keeping the needles centered is the primary reference and requirement but...
by JimB
Mon Sep 09, 2013 2:01 pm
Forum: Sport SX
Topic: HSI Background
Replies: 2
Views: 4691

Re: HSI Background

I flew some approaches with Carlos yesterday and have worked out a system that works well for me. I no longer change the PFD to split screen. I leave it as I usually have it so it is familiar and I know where to find information. I did add the ILS bars to the PFD but they only display when a ILS is ...
by JimB
Thu Aug 15, 2013 12:49 pm
Forum: Autopilot
Topic: Installation of GRT Autopilot
Replies: 3
Views: 9346

Re: Installation of GRT Autopilot

Bob, I believe the GRT servos are similar size and mounting as Tru Track servos. Here is a link to how to mount Tru Track sevos in a Zodiac http://www.trutrakflightsystems.com/documents/ZodiacPitchandRoll.pdf Likewise, there are pretty good manuals on check out of autopilot functions on the Trutrack...
by JimB
Tue Jul 16, 2013 6:24 pm
Forum: Sport SX
Topic: HSI Background
Replies: 2
Views: 4691

HSI Background

I have dual GRT Sport HS and Garmin GNS430. When shooting an approach I prefer to split the PFD screen to have the PFD and HSI. That way I can keep the map on the MFD and display XM Wx there. When I have this set up, the background map information displays with the HSI. For example, the Class C airs...