Ken,
I do not know the signalling voltage developed by the KXUSB. I do know
that the KX3 (and other devices using the KUSB cable) are capable of
receiving the full RS-232 levels, but will only send a 5 volt level.
The KXUSB FTDI chip is powered from the USB 5 volt source, so it is a
possibility that the voltage will not exceed 5 volts.
HOWEVER, I would suggest measuring the voltage levels at the plug of the
KXUSB to be certain before connecting it to your FT-817.
73,
Don W3FPR
On 8/27/2016 2:39 PM, Ken Alexander wrote:
Hi All,
I'm thinking of using a KXUSB cable for CAT control of an FT-817ND.
The 817 apparently cannot use RS232 straight from a computer (as the
K2 couldn't as I recall) and requires a level converter. However, I
have a handful of KXUSB cables now and was wondering if using one with
my 817 will be as simple as making an adapter to go from the 3.5mm
plug to the 8-pin mini-DIN that plugs into the 817.
So, long story short; can I go straight from a KXUSB to an FT-817
without a level converter or do I need to add one inline. I'd prefer
not to find out the hard way! :-)
Many thanks,
Ken Alexander
VE3HLS
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