there is no physical RTS line involved like there would be in an
old-style COM/RS232 device- there is only serial data going across a
USB cable to a logical COM device inside the K3S. It most likely
wouldn't change anything in this case.
The physical RTS line is moved from the computer to the output of
the USB UART (in the K3). However, there is still a physical RTS
line. The set RTS/DTR/Break and clear RTS/DTR/Break commands are
much more robust than sending serial data via USB.
Using RTS is *always* more robust (and less susceptible to RFI)
that using CAT commands for TS?RX switching.
73,
... Joe, W4TV
On 1/12/2017 1:15 PM, Nicklas Johnson wrote:
Unless I'm mistaken, doesn't the K3S connect directly via USB though? If
the problem is happening because of common mode on the USB cable, there is
no physical RTS line involved like there would be in an old-style COM/RS232
device- there is only serial data going across a USB cable to a logical COM
device inside the K3S. It most likely wouldn't change anything in this
case.
Nick
On 12 January 2017 at 10:08, Joe Subich, W4TV <[email protected]> wrote:
On 1/12/2017 11:05 AM, John Stengrevics wrote:
What’s the solution, ferrites on the USB cable?
Stop using CAT Commands for PTT! Instead set CONFIG:PTT-Key to
RTS-OFF and use RTS. WSJT-X supports PTT Method = RTS by setting
the PTT Port the same as the CAT Port.
73,
... Joe, W4TV
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