Nasa GPS Repeater

I looked online and the connections look straightforward. It would receive info from a Garmin handheld. It would also take the place of an old redundant wind display slot

Question
Does it simply replicate the various screens from the handheld with nothing else to do ? If not, would I have to set up data fields on the repeater and perhaps be limited to one display of data ?

Thanks in advance

Do you know what nmea sentences the garmin handheld is sending out?

There's a spare nasa repeater in front of me & just installing signalk on a laptop so will be able to test a few sentences in a minute to see what really comes out..
 
Do you know what nmea sentences the garmin handheld is sending out?

There's a spare nasa repeater in front of me & just installing signalk on a laptop so will be able to test a few sentences in a minute to see what really comes out..
Brilliant !
I'll check with the Garmin GPS.
 
I have one of these hooked up to an ancient Garmin 120 and wouldn't be without it. Distance to go and XTE and you're off to the races. It tells you whatever your GPS tells you.
I find with having a screen in the cockpit that you can become fixated on it. Good for the crew as well, everyone can see it so they don't need to ask how long to go. I have Navionics on a tablet but that generally lives downstairs and is mostly for planning.
Best £100 you can spend.
 
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Brilliant !
I'll check with the Garmin GPS.

Seems to be as discussed, needs both RMC and RMB nmea0183 sentences or it won't display anything.
So with an route active you can see position & waypoint info - cross track, track, distance & bearing to waypoint. No SOG or COG, So you will need an active route on whatever you are feeding the repeater with for it to display anything.
Personally for GPS data in the cockpit I prefer SOG & COG before anything else.


Tried it with these sentences, guessing the "GP" / "EC" at the start probably doesn't matter..

$GPRMC,101449.00,A,2807.88865,N,01525.65039,W,0.154,,100124,,,A*61<0x0D><0x0A>
$ECRMB,A,0.005,L,001,002,2807.624,N,01522.826,W,2.504,96.062,-0.014,V,A*7B<0x0D><0x0A>

(Edit - just tried $ZZRMC,101449.00,A,2807.88865,N,01525.65039,W,0.154,,100124,,,A*76 & $ZZRMB,A,0.005,L,001,002,2807.624,N,01522.826,W,2.504,96.062,-0.014,V,A*7D and still seems to work fine)

xvWAPu6.png
 
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I have one 'filling the slot' on the cockpit. The boat came with an old hand held Garmin pre-72 model. I hooked our up but it would only show me course and distance to go; and in tiny figures. I assume this was the antideluvian Garmin output because the manual has big figures!

Raspberry Pi, big dashboard, bought wind instruments, blah, blah, blah🙂
 
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