GPS via Garmin 430 + Rosetta upgrade vs DIY Rosetta

[neilmurg]

I couldn't find this in the forum:
Is it possible to use the Garmin 430 to give GPS data to Rosetta?

I've just plumbed the Rosetta into out share-o-plane using 2 dipoles and a USB extension lead - it looks great! Not a 'permanent' installation yet, but unobtrusive and working well.

Also, I did a homemade Rosetta upgrade as you were out of kits (and I was too impatient, they were available later the same day - doh!), it was WAAAY fiddly and ended up costing about the same compared to the official kit - I upgraded another one with the proper kit last week.

[exfirepro]

Hi Neil,

Nice neat job. PAW can only use GPS modules it has been programmed to recognise and in view of Garmin’s reluctance to share any of their protocols, I would guess that precludes theirs. Lee will be able to confirm.

Regards

Peter

[Ian Melville]

It is possible to feed GPS strings into the USB port via a RS232 dongle. I think the limitation will be what the GNS430 can output.

This setup is used if you have a FLARM unit connected, and have removed the supplied PAW GPS.

[JCurtis]

I seem to recall that the GNS430 won't send 'valid' data stream out unless a route is active, but the GNS430W does. 

At least when connected to a transponder I had a friend with a 430 that the transponder wound't start ADSB-Out unless a route as active.  Comparing the 430 and 430W output the non W version set the GPS data as invalid without a valid destination/route active.