Hello Chris - I am using my K2/100 with N1MM and do not notice the noise that you are referring to. I use the K2/100 with two laptops - one an old P1 266mhz with only 80 meg ram (yes, it works fine with N1MM as long as you don't have anything else running!). This old computer has a "real" RS-232 port. The reason I mention that is that my other laptop is a 2.6 gig with 512 meg ram, etc but NO serial port. I have to use a USB to serial converter cable with it. When I use that computer, I can hear the converter creating a slow pulsing broad rf spectrum that is receivable on all the rest of the rigs in the shack. This is true whether the K2/100 is connected to that computer or not. Now the interesting part is that when the K2/100 is connected to the converter, I cannot hear the noise in the K2 - only in the other rigs. BTW - the usb to serial converter works very nicely with N1MM. You might want to check to see if you have any ground loop between the K2 and the computer. I think the cable should be grounded at only one end to kill the ground loop. 73 es gud dx --don n4hh K2/100 #2028 KAT100, etc. etc. ----- Original Message ----- From: "Chris Page" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Thursday, February 17, 2005 8:36 AM Subject: [Elecraft] K2 - NOISY POLLING
> Does anyone else have a problem with noisy polling with their K2 when > used with a computer logging program, and is there a cure for it? > > I have two K2/100s which both have the 160m, NB and DSP options and > one has the SSB option. I am using N1MM Logger with an old desk-top > (about 300MHz) computer under Windows 98 and when I listen to the SSB > K2 on any band with the AF gain at minimum, I can hear a soft pulse > every second or so. This does not increase as the AF Gain is > advanced and normally the sound of signals, etc masks it, but it is > slightly annoying when tuning on a very quiet band. > > I can just about hear it on my other K2 if I really listen hard for > it but I don't think I would have noticed it on this K2 had I not > first heard it on the SSB K2. The problem must therefore be > something to do with the SSB K2. > > Gary Surrency suggested moving the ribbon cable between the K2 and > K2/100 further away from the KSB2 unit and also try switching off the > RTC (in the secondary menu). I have tried both and neither make any difference and Gary suggested I now ask on here. > > Thanks for any help. > > 73 de Chris, W4/G4BUE > > > arse just installed the repaired K2 and my own K2 in a SO2R set-up > > with N1MM Logger for contesting and have noticed that the polling > (at > > least I think that's what it is) is very noisy on the repaired K2 > > compared with my own K2. > > > > I hear a continual soft pulse about every second which does not > > increase as the AF gain is increased. When I disconnect the radio > > from N1MM Logger, it goes away. > > > > Is there anything I can do to reduce the volume of the polling, > > please? > > > > -- > No virus found in this outgoing message. > Checked by AVG Anti-Virus. > Version: 7.0.300 / Virus Database: 265.8.8 - Release Date: 14/02/2005 > > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.300 / Virus Database: 265.8.8 - Release Date: 2/14/05 > > -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.8.8 - Release Date: 2/14/05 _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
