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Re: [N1MM] Stuttering CW using LPT1

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  • Graham
    You re welcome Tom. Glad to see that posts to the list get read. Fabulous app your N1MM logger; now if there was a version that would run on LINUX. Actually,
    Message 1 of 3 , May 3, 2012
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      You're welcome Tom.

      Glad to see that posts to the list get read.

      Fabulous app your N1MM logger; now if there was a version that would run
      on LINUX.

      Actually, TLF for LINUX is a pretty good substitute but I still think
      N1MM logger is the best overall.

      cheers, Graham ve3gtc



      On 12-05-03 10:03 AM, N1MM wrote:
      > Thank you Graham. Good to get your solution documented for others who
      > might experience it.
      >
      > 73,
      > Tom - N1MM
      >
      > On 5/2/2012 2:57 PM, ve3ghm wrote:
      >> Good day all,
      >>
      >> I have been using N1MM logger on an off for a number of years; the only real issue I have with the program is that it is Windows only. I prefer LINUX but in order to use this fabulous program I keep my laptop set up as duel boot with WinXP and Linux and Win7 and Linux on another.
      >>
      >> At home, if I wish to use N1MM logger for a contest I will usually use my laptop which has WinXP on it. The laptop is an IBM Lenovo Thinkpad T42 and I use the printer LPT1 connector on the laptop to key my radio for CW and a USB to serial cable to control the radio.
      >>
      >> All works just fine and I have never had an issue with stuttering CW at home.
      >>
      >> However, whenever I operate portable and in a contest I have been using TLF or XLOG on LINUX on my laptop. This has also never given me any problems.
      >>
      >> Recently I tried N1MM logger on this same laptop while operating portable in the Ontario QSO party. Started out OK but after a while I stated to get stuttering CW (for lack of a better description) - only every once in a while so I put up with it. After moving to a new location and trying CW the problem was much worse, to the point that I could not use CW keyer via N1MM any more. It wasn't RF getting into the system either - horrible stutter whether I transmitting or not.
      >>
      >> I tried disabling uneeded task and apps but it made no difference. I set the priority of the CWIF.exe to "realtime" but kept getting set back to "normal". Once I returned home I tried to duplicate the environment thinking that it might have been low battery power but everything worked just fine. The only difference was being home and not out at a remote site operating portable.
      >>
      >> The problem or at least what I believe to be the problem finally dawned on me - it was the wireless networking. At home the laptop connects to and stays connected to my wireless network but while out at the remote portable site there was no wireless networking and the laptop kept trying to scan for and connect to a wireless network.
      >>
      >> To prove my theory I turned off my wireless network and sure enough I was finally able to get stuttering CW at home - turnoff the wireless networking on the laptop and everything was OK again.
      >>
      >> I search through the messages on this group but didn't find anything posted on this particular issue so I thought I would pass along my findings.
      >>
      >> cheers, Graham ve3gtc / ve3ghm
      >>
      >>
      >>
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