Am looking for the same and wondered if this would be of any assistance.
The Oriental dealer is not longer on Ebay but there are adapters out
there using the same chip.
http://ve7sl.blogspot.com/2016/02/usb-ptt-line-keying.html
73 F5VBU
On 1/30/2019 6:17 AM, Peter Bertini wrote:
Need some advice on selecting a USB adapter to provide a serial port for
controlling my Omni VI.
The Dell machine I am using allows the RTS line to go high when the port is
not in use, so it does not play nice with RTS CW keying interfaces.
Need an adapter that will allow my N4PY programs and others to work with my
Dell.
Pete
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