[ct-user] CW functions
Jim Reisert AD1C
jjreisert at alum.mit.edu
Sun Jun 25 17:48:09 EDT 2006
At 03:41 PM 6/25/2006, Ed K1EP wrote:
>The last you wrote, you said you were going to get a parallel keying
>interface. Buying a 9 to 25 pin adapter doesn't make a serial
>keying interface into a parallel one. Parallel interfaces will
>only come with a 25 pin connector, serial interfaces come with
>either a 9 or 25 pin connector. If you are using CTWin, serial CW
>keying is not supported, you must use the parallel port for CW
>keying. If you are using CT DOS, then you can use either the serial
>(COM1, COM2, etc.) or parallel (LPT1, LPT2, etc.) ports. The actual
>keying circuit built in to a parallel or serial keying cable is
>virtually identical, they are just connected to different pins and
>possibly expect different voltage levels. or polarities.
What Ed said.
On a PC, the COM port is a 9-pin or 25-pin MALE receptacle. The LPT
port is a 25-pin FEMALE receptacle.
Buying an adapter does NOT solve the problem. They are two different
Your software SAYS that you have an LPT port *somewhere*. You need
to find out what kind of connector that goes out to.
73 - Jim AD1C
Jim Reisert AD1C, 7 Charlemont Court, North Chelmsford, MA 01863
USA +978-251-9933, <jjreisert at alum.mit.edu>, http://www.ad1c.us
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