Sorry, I did not know that. That means it should ideally work through a
real serial port and must use the "one transistor" keying interface to
translate the TxD RS-232 levels to TTL - then feed the TTL output to the
FSK pin on the K3 ACC connector.
73,
Don W3FPR
On 1/27/2013 2:47 PM, Richard Ferch wrote:
Don, that will not work. EXTFSK does not send ASCII over the radio
control port. What it does is use bit-banging techniques to twiddle
the TxD line on a serial port whose UART will not go slow enough to
key 45 baud RTTY (that includes most USB-to-serial adapters). The port
EXTFSK uses cannot be shared using LP-Bridge, and MMTTY cannot use the
radio control port to key FSK RTTY, with or without help from EXTFSK.
73,
Rich VE3KI
W3FPR wrote:
Those applications must send ASCII over the same port that is
connected to the K3. Do you have other applications running? Only one
application at a time can open a COM port. If two or more
applications attempt to share the same COM port, the second one will
fail to connect. If you do need to share one com port with 2 or more
applications, you can use LP-Bridge (google) to create virtual ports
- the application connects to a virtual LP-Bridge port and LP-Bridge
connects to the K3.
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
