Re: Split RS232?

Posted by NZ0T on
URL: http://elecraft.85.s1.nabble.com/Split-RS232-tp2949319p2976388.html

 Thanks Howard - seems to work fine as I have ACLog and K3_EZ running and connected at the same time.  Now I need to figure out why K3_EZ keeps messing the band map in the K3.


Let's say your K3 has one 9pin RS232C port, and you want to connect it to
your amplifier so the amplifier will always know the band/frequency the radio is set to.
But wait - you also have the Palstar AT AUTO auto-tuner and you want to connect its RS232 port to the K3 so that the tuner will always retune every time you change the K3 frequency.  But, that's not enough.  You want to run Ham Radio Deluxe on the computer - and it needs to access the K3's RS232 port.  What's a HAM to do?

This free VSPE software can solve it for you.

Let's say your computer has 3 COM ports:

COM1 - connected to the Radio.
COM2 - connected to the Apmplifier
COM3 - connected to the Antenna Tuner
Software 1: need to get access to COM1 (Radio) - Ham Radio Deluxe
Software 2: need to get access to COM1 (Radio) - perhaps some other software.

"Amplifier" and "Antenna tuner" devices must also be connected to the
Radio.
-------------------------------

Right?

1) Create VSPE Splitter (Source port=COM1, Virtual port = COM9)
2) Create VSPE Serial Redirector (COM9 => COM2)     : (Radio => Amplifier)
3) Create VSPE Serial Redirector (COM9 => COM3)     : (Radio => Antenna Tuner)
4) Change Software 1 settings to use COM9 instead of COM1
5) Change Software 2 settings to use COM9 instead of COM1

Now the problem is solved - everything can share the COM1 going to the K3 radio.

The only problem that may exist is that if several programs try to send data to the radio at the same moment, the bytes may get intermixed and if this occurs it will be an unintelligible mess to the radio.  I have not tried this, so I do not know if it will or will not occur.

Howard