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[aprssig] Icom GP-22

Drew Baxter droobie at maine.rr.com
Thu Jun 16 02:36:46 UTC 2005

I caught this from the archives ON APRSSIG from 10 DEC 1996.

>After 2 calls to Icom I was able to get the info I needed.
>With the GP-22 in order to have the NMEA port you need the interface
>unit. It gives you the NMEA port and the external ANT. jack.
>I needed to know how the plug was wired on the interface unit.
>Ends up it is just a 1/8th inch Mono plug Tip Positive Sleave Ground.
>the HSP Cable I have from Kantronics had 3 wires for the GPS one
>Positive one Negitive and an extra ground wire I didn't even hookup.
>Worked great after I set the TNC's baudrate down to the 4800 and turned
>HSP on in aprs.

Hope this helps you out.

--Droo, K1XVM

At 10:28 PM 6/15/2005, WA4YYM at aol.com wrote:
>I know it is a "relic", but I have an old Icom GP-22 GPS that I would like 
>to modify for NMEA output for an APRS application.  The original unit 
>(which I read somewhere was actually made by Panasonic) had no external 
>NMEA data output port.  I seem to remember a mod for it which would output 
>NMEA data.  Does anyone have the mod or know where I could find it?  I 
>would like to put it back to work along with my other 3 GPS units.  Thanks.
>Don Robinson MD
>Cleveland, TN

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