The USB cable is a direct cable with a USB connection on one end, and the 3.5 mm 4 conductor plug that is normally speaker mic, but used to clone. Nothing in between. It was purchased specifically for the VX-3.
The "real serial cable" comes from the 9 pin D connector to a 3.5 mm regular stereo connector (3 conductors including ground), that then goes thru an adapter to the 3.5 mm 4 conductor plug used for cloning. Years ago, this worked fine this way with a VX-5, so I doubt it has changed, unless the VX-3 and VX-5 have the TxD and RxD switched.
At this point, I am thinking that possibly the plastic around the jack on the VX-3s do not permit the cable to go all of the way in. It looks like it goes in all of the way, but it is really up against the plastic case, so it is hard to tell for sure. And no way to really test that. Of course if it was not in all of the way, the TxD and RxD connections would not be the right place, and it would not work.
Of course one would hope that a cable bought specifically for the VX-3 would fit the VX-3!
Any other ideas?
Thanks.
73,
Ken, W8EK
D. Daniel McGlothin KB3MUN wrote, On 7/4/2011 6:19 PM:
I DO get echo back on that (I can see what I am typing)...
Echo in HyperTerminal is a setting: File >> Properties >> Settings >> ASCII Setup >> "Echo characters typed locally".
sounds like the cable is not connected to the radio. But both cables?????
Is there by chance a "null modem" adapter involved (which would switch the transmit/receive signals)?
Do you know the cable's pinout (for all intermediate cables)?
73 de Daniel KB3MUN