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Garmin Striker 4 NMEA Output??
#1
So I am building my system and want to add a depth sounder.  The Garmin Striker looks like a good option given the price (around $120 USD).  There is conflicting information that the external output is proprietary Garmin and others say it is high speed NMEA.

I have an interface for my system that can accept RS422 at either 4800 or 38400....so I should be able to connect.

I am wondering if anyone has used the Striker output and if it will send DPT or DBT??  I have searched high and low and Garmin sure doesn't say much.
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#2
(2020-07-01, 08:47 PM)tafische Wrote: So I am building my system and want to add a depth sounder.  The Garmin Striker looks like a good option given the price (around $120 USD).  There is conflicting information that the external output is proprietary Garmin and others say it is high speed NMEA.

I have an interface for my system that can accept RS422 at either 4800 or 38400....so I should be able to connect.

I am wondering if anyone has used the Striker output and if it will send DPT or DBT??  I have searched high and low and Garmin sure doesn't say much.

Nowhere in the manual it says NMEA0183, so one could assume that it is propritary Garmin protocol..
However somewhat simple to check with a laptop, serial USB converter and PUTTY program, and 2 test wires.
But a quick guess is that its a no go..

Br
/Morten
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#3
(2020-07-03, 04:22 PM)mTorp Wrote:
(2020-07-01, 08:47 PM)tafische Wrote: So I am building my system and want to add a depth sounder.  The Garmin Striker looks like a good option given the price (around $120 USD).  There is conflicting information that the external output is proprietary Garmin and others say it is high speed NMEA.

I have an interface for my system that can accept RS422 at either 4800 or 38400....so I should be able to connect.

I am wondering if anyone has used the Striker output and if it will send DPT or DBT??  I have searched high and low and Garmin sure doesn't say much.

Nowhere in the manual it says NMEA0183, so one could assume that it is propritary Garmin protocol..
However somewhat simple to check with a laptop, serial USB converter and PUTTY program, and 2 test wires.
But a quick guess is that its a no go..

Br
/Morten

Thanks for the feedback mTorp.   I am borrowing one in the next couple of days so we will find out for sure.  Based on what I have seen, it appears to use RSR232 so I should be able to get the data out and we shall see the format......Will update once I find out.
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#4
Hey @tafische, wondering if you had a change to check the RS232 output on the Striker 4? I was thinking of doing the same thing and hoping to learn from your experience.
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#5
(2020-12-07, 07:34 PM)couchichingsail Wrote: Hey @tafische, wondering if you had a change to check the RS232 output on the Striker 4? I was thinking of doing the same thing and hoping to learn from your experience.

Was never able to get anything out of the serial port on the Striker, so it is fully proprietary.   Too bad because it would have been a good solution.

I ended up getting an older unit off eBay and that works great.
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#6
I've been serraching for the same purpose. It is RS232 112.500 bauds and it is a propietary protocol.
Look at this post https://blog.openwww.org/garmin-high-spe...r-network/

I've obtained this:
¯►►&┼╦┤Û¿►☻&Ê►► üL ♫Striker 4 Software Version 2.70VERBMAP NoneVERSMAP NoneVERSPLSCRN Splash Scrn, 200x70, RGB5551, GARMIN 2.00BACKLIGHT LEDÆ►☻ ¨►►·☻¨♂►☻·■►

And, after a while, it sensa the same sentence every 5 seconds
TAdDnA╔D╩DnDÊA-D8D.DnAX☻DX☻AY☻DY☻A╝☻D╝☻A D AY☻DY☻AïT►☻²¹►►²cPLA

I think it is a bidirectional protocol thar wait to a query.

Supose that it is very hard to decrypt and we need an echomap to know what are the querys.

Best regards
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#7
https://support.garmin.com/en-CA/?faq=xX...hKT97PfrJ6 (Wire Functions of the Striker Power Cable) describes how to enable Striker's output on the blue and brown wires, but states that NMEA output is not provided. That might be ambiguous - it could be NMEA plus Garmin extensions.

There is a post on bbcboards that sheds light on it - http://www.bbcboards.net/showthread.php?t=769003

Todd Driscoll of the Garmin Pro Team states:

"It is easy to get confused over the proprietary Garmin High Speed Protocol (used to share wpts with 2015/16 echoMAP and Striker units) and NMEA 0183 since the wiring is similar. Simply put, there is a Serial Port selection that must be made to enable Garmin High Speed or NMEA 0183 communication with the echoMAPs. Note that the Striker units only support High Speed Protocol."
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#8
Here is somebody who is trying to decode it. https://blog.openwww.org/garmin-high-spe...r-network/
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#9
Yes, abarrow, That's what I've found. I have send him a message but I am awaiting response.
Thanks mluckham.
The mistery remains...
I wished to send depth data from Striker 4 to my Garmin 158i trought some conversion with Arduino or so but it seems it only sends wpt data asnswering a query (I suppose)...
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