[aprssig] Kenwood D7 not working with Garmin 76C

[Paul Malarcher]

I bought my TH-D7 when they were first offered. It worked fine with my
Garmin GPSIII. Then I bought a new Garmin GPSMAP 60C.

The D7 didn't recognize positions that the GPS was sending, but received
positions were displayed on the GPS as waypoints. I sent the TH-D7 to
Kenwood for upgrading and two weeks later the GPS and radio talk to each
other perfectly.

Good luck,
Paul, W2PI

-----Original Message-----
From: aprssig-bounces at lists.tapr.org [mailto:aprssig-bounces at lists.tapr.org]
On Behalf Of Robert Kirk
Sent: Friday, January 28, 2005 7:48 PM
To: TAPR APRS Mailing List
Subject: Re: [aprssig] Kenwood D7 not working with Garmin 76C

Thanks for the replies. It looks like it's not a hardware problem but, as
several suggest, it may be that the Kenwood firmware doesn't support the
latest NMEA protocol. Kenwood tech says my unit has the latest firmware
(2.0) but anyway, it's not their problem, they can't test every GPS, no
plans to do anything, etc... No help there. As Mike Edwards says, Garmin
just put out a software update that will allow NMEA  tuning. Garmin folks
say this might help me, though the upgrade is not for the 76C yet , but to
expect it soon. I'll look forward to it. Jason KG4WSV said his 60C works
with the D7, so I'm still worried. I'll let you all know if this turns out
to be  a generic problem or not with the Kenwood. In the meantime my old
Motorola Traxar, GPS II+ or GPS III+ will do APRS fine.

Bob Kirk
N3OZB

>Is anyone using a Kenwood D7 with a Garmin GPSMAP 76C? (or maybe its 
>sister 60CS)?
>
>My older GPS III+ drove the D7 fine, but my new 76C will not cause the 
>D7 to send a signal. I checked the 76C output on a terminal program and 
>it looks fine. Garmin tech  says the signal level/voltages are the same 
>in both units, although the 76C users a newer NMEA spec.
>
>Is it possible that the Kenwood D7 will not work with the latest NMEA
specs?
>
>(Also, When checking it with the older III+, I  notice the D7 will 
>continue to send out the last posit data it has received from the GPS, 
>without the warning that it's an old posit, even after the GPS is 
>turned off. That seems like a D7 programming glitch, if true.)


_______________________________________________
aprssig mailing list
aprssig at lists.tapr.org
https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig