Check and see if the logging software will send a command to the radio to go into transmit mode. Then you don't have to worry about RTS, DTR, transistor switches, special wiring or any of that stuff.
Buck k4ia In a message dated 3/5/2010 3:29:00 P.M. Eastern Standard Time, [email protected] writes: Hi, Steve! N1MM can activate the PTT and CW keying lines, but you'll need to fashion or acquire a single-transistor switch (see http://aa5au.com/rttyinterface.html for examples) for the DTR and/or RTS lines. I'd create two switches, one for PTT and another for the CW line. W3YY also makes a cute little board for this, http://www.w3yy.com/fsk.htm. The N1MM site also describes this at http://pages.cthome.net/n1mm/html/English/Interfacing.htm. If you're using a USB to Serial adapter for your RS-232 keying interface, there may be some "gotchas" depending on your USB to Serial Adapter. I'm not up-to-date on this, but plan to spend a little time with your breadboard version before committing to use this as your only technique. Some users have reported CW "stuttering" with some computer OS versions, which is why a WinKey device is so popular with contesters. Sometimes the CW stuttering doesn't occur until late into the contest, when there's a lot of CPU or disk activity when you log a new QSO. Minimizing the disk I/O of other programs is essential if you're trying to send quality CW from a computer with a time-sharing OS (e.g., all versions of Windows). Others have had no trouble at all. Your wife insisted that you acquire a K3? What a gem she must be! 73 de Dick, K6KR -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Steve Robinson Sent: Friday, March 05, 2010 12:00 PM To: [email protected] Subject: [Elecraft] N1MM config questions My lovely bride of almost 32 years has recently insisted that I buy a K3 for my belated birthday present, so I did (what a woman). I am starting with the basic kit that includes the 100 watt amp and 2.8Khz and 400Hz Inrad 8 pole filters. That is it. Building the kit was a lot of fun and #3979 is happily on the air. So far I have serial communications with N1MM Logger so I can change frequencies from the TNC or bandmap window. I am looking for sage advice with respect to keying and audio. I do have a RIGblaster plus here but can I key the rig from the serial cable? So far I have N1MM set for the proper serial port talking to the K3 at 38400-N-8-1-1-DTR and RTS Always On. If I can key it with this cable, I could toss the RIGblaster aside and try some of the recent audio hints I have read here in the last day or so, but please advise on this too if you can. I know I am still pretty unfamiliar with the rig but I hope to get on any way this weekend when I can. It¹s nice to be part of this new family. Thanks for reading this and thanks in advance! -- Steve WU9B ______________________________________________________________ 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 ______________________________________________________________ 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
