[LCC] N1MM Plus Keying

[Don AA5AU]

David, how are you attempting to key CW now? If you have a legacy serial port (may not work with a USB-to-serial adapter), you can use a simple transistor keying circuit for CW and/or PTT shown here:
http://www.aa5au.com/rtty/fsk-interface/

Although the page shows an FSK keying circuit, it also shows CW and PTT. I've been using single transistor keying circuits for CW/FSK/PTT for years and years now.
FSK and PTT will work on a USB-to-serial adapter, and CW might, but I've had trouble keying CW using a USB-to-serial adapter in the past. I think it depends on what kind of chipset is used in the adapter. Luckily I have multiple legacy serial ports on both my shack desktop computers including one desktop running Windows 10 (also worked under Windows 8.1) and the other running ol' reliable XP Pro.
73, Don AA5AU
 
      From: David Norris <k5uz at suddenlink.net>
 To: LCC <lcc at louisianacontestclub.org> 
 Sent: Friday, September 4, 2015 8:49 PM
 Subject: [LCC] N1MM Plus Keying
   
Help!

Does any have a RELIABLE circuit to key the rig from N1MM Plus???

I updated the program and it has been nothing but one malfunction after another all night!!

I'm done for CWO! 

73  

David A. Norris, K5UZ
Director, Delta Division

Sent from my iPhone
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