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Messages - Gorilla

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General Discussion / Re: TruTrak autopilot query
« on: March 23, 2022, 10:34:57 am »
Hi Alan,

Thanks for that.  I'll give your suggestions a try. 

I know I selected the correct GPS messages and baud rates between the two devices and I did have a route activated in the AVMAP but I was trying everything whilst stationary on the ground - even though I could see that the AVMAP had "found" where it was.  I think I'll do the connections as suggested and then try everything out in the air.

Paul

2
General Discussion / Re: TruTrak autopilot query
« on: March 23, 2022, 06:36:32 am »
Hello Ian,

Thanks for your reply. I did want to post some attachments showing both the AVMAP and BK xCruze100 wiring diagrams but couldn’t make the pages less than the ousting limit of 512K. Can I send you them in a PM?

Paul

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General Discussion / TruTrak autopilot query
« on: March 22, 2022, 12:24:59 am »
Hi,

My name is Paul and I'm a CTSW owner and new to the forum.  I know that there are some great technical minds on this forum and I'm hoping someone can help me out.

I have recently installed a Bendix King xCruze100 (re-branded TruTrak Vizion) autopilot in my aircraft.  Everything works fine except for the GPS input.  I am using an AVMAP EKP V navigator connected to an external GPS antenna for the GPS signal to the AP.

The AP wiring diagram shows just ONE wire on pin 17 of the 25-pin multiplug which is for a NMEA 0183 protocol GPS input signal.  However, the AVMAP EKP V shows that I need TWO wires to connect to an AP; one connected to TXA and one connected to signal ground.

I have tried just using one wire to connect AVMAP TXA to the AP pin 17 but that didn't work; I had "NO GPS" displayed on the AP.  I have checked that the wire from the AP is on the correct pin and for continuity.  The BAUD rates are the same (I tried both 4600 & 9600) and the AVMAP works perfectly.

Has anyone on this forum got the same set-up as me and if so, how did you get it to work?  Can anyone shed any light on why the AP says it only needs one wire but AVMAP says I need two?

Thank you.

Paul

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