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Author Topic:   Garmin 4008 interfaced to Icom 504
alb1661 posted 05-19-2008 09:53 AM ET (US)   Profile for alb1661   Send Email to alb1661  
Anyone have this issue?

The 504 screen has GPS lat/lon information showing , however when I want to send a postion request the 504 still makes me verify the lat/lon information. The 504 instructions state if there is a GPS connection to the radio it should skip directly to a postion request output screen. Is it the Garmin GPS nmea 0183 sentence GLL (6) status...(A data valid)(V data invalid),or is in the Icom 504 software? Icom tech support was not helpful.


bluewaterpirate posted 05-19-2008 10:38 AM ET (US)     Profile for bluewaterpirate  Send Email to bluewaterpirate     
Is this what you are seeing?


Chuck Tribolet posted 05-19-2008 11:00 AM ET (US)     Profile for Chuck Tribolet  Send Email to Chuck Tribolet     
Send a position request? Or acknowledge a position request
somebody else sent you?


bluewaterpirate posted 05-19-2008 11:13 AM ET (US)     Profile for bluewaterpirate  Send Email to bluewaterpirate     
The steps of procedure are the same button sequence (with the exception of the selection as to what he wants to do)for initiating or replying on the 504 unless he has his radio set to auto ack which he doesn't.

To answer a position request you will have to press menu button, rotate the selector to "pos report reply" the push the dial to select it, then rotate the selector dial to the name of the person replying to then push the dial to select the name. After you do that you will get a screen thay say's reply ready at which time you push the selector dial to transmit your reply. The only reason you would get a position verify screen is if your radio wasn't receiving the data from the garmin

To view all the NMEA data coming into the 504 from your Garmin push the Selector dial in. You will see this screen. 39807474/file.jpg


alb1661 posted 05-19-2008 11:38 AM ET (US)     Profile for alb1661  Send Email to alb1661     
Thank You Tom & Chuck

I see the 504 screen with all the GPS information,as you pointed out.I do have my ACK set to Auto ( it does not auto reply). However, when I select the name in my mmsi directory and push the dail it does not go to "reply ready" it goes to a Lat/Lon screen with the GPS lat/lon information but I have to move the curser thru the GPS Lat/Lon numbers that are already on the screen to verify my postion.



bluewaterpirate posted 05-19-2008 12:23 PM ET (US)     Profile for bluewaterpirate  Send Email to bluewaterpirate     
I've seeen that one before, let me see if I can duplicate on my test bench when I get home tonight.


alb1661 posted 05-19-2008 12:28 PM ET (US)     Profile for alb1661  Send Email to alb1661     
Thank You Tom

Have a great day


bluewaterpirate posted 05-21-2008 09:54 AM ET (US)     Profile for bluewaterpirate  Send Email to bluewaterpirate     
I conducted a bench test last night and the only way I could duplicate what your seeing is if I had auto ack turned off. When it is turned off you before you send your reply it the unit will diplay lat/long/course/speed/time.


alb1661 posted 05-21-2008 10:47 AM ET (US)     Profile for alb1661  Send Email to alb1661     
Tom...Thank You

Thats my issue. According to the instructions on page 34/35 of the ICOM manual if you have GPS information sent to the rx that Lat/Lon with the curser flashing display screen (the rx already knows where you are with the GPS input)should NOT appear. The rx should go directly to the "postion report ready" screen. The way this software is set-up you have to push the DIAL 18 TIMES to verify the lat/lon & UTC to get to the report ready screen.Not easy to do in a boat thats moving.



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