I'm not sure it/they are the same, but I had a similar problem with my FT-857 and found that the voltage that is suppose to be on the data line connector was missing. If you are using a Yaesu data cable, they usually derive their power from the mini-din connector on the back. In my case, a 3 amp surface mounted pico fuse opened up inside the radio. This can happen if you plug/unplug the data cable with the unit hooked up to power and especially if it is on.
Again, don't know if this is the case, but it could be a similar problem. Check for voltage on the data connector if it is suppose to have any.
Regards,
Reid, W4UPD
Gary Schuchardt wrote:
I have a problem involving the 9 pin serial port on the back of my FT-847 Yaesu transceiver. When I try to use a null modem cable between the rig and my PC on either COM 1 or 2, the rig will not respond to compatible rig controller (CAT) nor a memory management program. The COM ports have been tested as well as the use of two different PCs. Neither null modem cable works. I have tried to use the Menu feature on the FT-847 to match baud rate between radio and PC COM port. Has anyone had a problem like this with the Yaesu FT-847? I would appreciate knowing.
Thank you.
Gary N0EZH _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb