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Wondering what you mean by it "not connecting" to the 847...? Assuming you have an 847 with a recent-enough serial number to have 2-way communication, one thing that might be a problem is the USB-Serial converter chip (Prolific, FTDI, and the counterfeit versions) and the drivers on your computer.? I'd look for a "Genuine" FTDI-based adapter, if you can find one, and if it really is what it says it is.? I purchased one earlier this year, and while it did work, the operating system very clearly identified it as NOT an FTDI chip leaving me feeling cheated.? So, good luck in that regard.

For troubleshooting serial problems I sometimes use an adapter that has LEDs that indicate status of the various modem control lines and data activity.? I've used this one, though not specifically with the 847:? ? No issues with the chipset there.? Oh, but that brings up the other perennial incompatibility, that between the straight-through and null-modem (Tx / Rx swap) cables.? Serial interfacing is plagued with ports wired backwards, wrong gender, etc.? I forget what I used with my 847. ? I think the rig is done the right way, but your cabling might not be.? The LED indicators can help with that.? Check the rig's manual on how the radio's serial port is wired.

Greg? KO6TH
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