Starfire ITC to Topcon X30 - The Combine Forum
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post #1 of 4 (permalink) Old 04-23-2019, 08:04 PM Thread Starter
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Starfire ITC to Topcon X30

I am having issues getting the GPS signal from the JD receiver into the X30 monitor. I have the JD harness, and I've followed the Bourgault instructions, but still having issues.

A couple things to note. My JD monitor only cycles between 1 and 5 Hz output, and doesn't allow me to select 10 Hz, as shown in the instructions. I bought the air tank used, and it never came with a null modem, so I ordered one from staples and amazon. The one from staples showed up first, so I tried it, and nothing. As far as I understood these are standard??

I tried using different com ports on the X30, and different Baud rates, still nothing.

Info from my JD dealer was that Bourgault just gets info from the dealers, after they figure things out with universal input/output harnessing. So they are not experts on plumbing into the different tractor harnesses. The set up in the Topcon looks like it is the same series of tractor that I am running, so I would've thought this would be an easy process.

Any input would be appreciated. Thanks.

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post #2 of 4 (permalink) Old 04-23-2019, 08:25 PM
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Yes all DB 9 null modem adapters are the same. They just swap the TX and RX pins. If you have a laptop with a USB RS232 adapter you might be able to plug it into the John Deere cable, use a terminal program (not sure if Windows comes with one anymore or not) and see if you can see the NMEA data coming across. That's your first step.

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post #3 of 4 (permalink) Old 04-23-2019, 09:48 PM
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I have a topcon x30 with a 6000 globe. I have mine set to 5hz, 38400 baud rate & all the boxes must be checked for it to connect.
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post #4 of 4 (permalink) Old 04-24-2019, 09:37 AM
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5 Hz is good enough
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