Raimo,
I used my navaid servo so I had a harness to wire to but the same data
eventually goes to the same pin on the trio head. My notes say that
the GPS or NMEA out signal is to go into pin 7 on the head. The ground
coming from the GPS is to go to a ground then to the black wire only
and it goes to pin 10 on the trio head. The servo ground goes to pin 9
on the head as they are separate. I see nothing about twisting two
wires together or using pin 8. I'm assuming you have the wiring harness
---From trio that has the head connector wired but the other end is the
exposed wires right?
Jeff R.
A258 - N128LJ / Gold Rush 176 hours and climbing slowly.
On Feb 4, 2009, at 2:07 PM, Raimo Toivio wrote:
>
> Jeff, thanks for support!
>
> Do you remember did you connect Trios pin 8 which is black and
> twisted with green (pin 7) to the plane ground or to the GPS Data In
> TXD or both? This question is really confusing also me.
>
> As you said Trios support is great but they cannot help me because
> they have a wrong (old) wiring diagram for Garmin 296. Obviously 296
> is only Garmin model using violet wire to the NMEA output - all the
> other use blue one they say.
>
> Raimo
>
> My plane looks now like it has never been airborne (and never will)
> ;(((
>
> ----- Original Message -----
> From: "JEFF ROBERTS" <jeff@rmmm.net>
> To: <europa-list@matronics.com>
> Sent: Wednesday, February 04, 2009 9:30 PM
> Subject: Re: Europa-List: GPS NMEA data transfer to the autopilot
>
>
> Ramio,
> You will need a satellite signal to test it. Mine wouldn't work with
> the GPS in it's simulation mode. I too have a trio and it works great
> but... I had a lot of intermittent trouble of losing the GPS NMEA
> output signal. After changing out the head of the autopilot and the GPS
> and all the wiring and flying without it for months it became apparent
> that I needed a ground. The instructions said if your GPS power is
> coming from the plane then you didn't need the ground for the auto
> pilot signal. But I think they we're just so use to putting these
> things in metal planes.
> Anyway I take my signal from an av-map 4 so it's NMEA out was a yellow
> wire only. Once I ran a signal ground everything worked perfectly.
> Get it working because the product is a very good and the support from
> them is even better.
>
> Jeff R.
> A258 - N128LJ / Gold Rush 176 hours and climbing slowly. Down for
> annual and mods.
>
> On Feb 4, 2009, at 12:34 PM, Raimo Toivio wrote:
>
>> <raimo.toivio@rwm.fi>
>>
>> All who have been there
>>
>> I am just now connecting my autopilot (Trio) to GPS (Garmin 296).
>> Doing it in a hangar - no seenable satellites.
>>
>> Question: when GPS is in a simulation mode, is there NMEA 0183 data
>> out then?
>>
>> I have tried data out 1 /violet wire /com 1 and data out 2 /blue wire
>> /com 2 but "No GPS" message in autopilots display. Tried also all the
>> possible NMEA "advanced settings".
>>
>> Any ideas? Should I find an oscilloscope? Cannot go out to find real
>> satellites...
>>
>> Thanks, Raimo
>> OH-XRT
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
|