[Elecraft] Re Newbie (about NB)

[Rich McCabe]

Well it appears my NB is probably working but does not doing anything with "my type of noise" based on everyones comments. 

As I mentioned, I miss the NB on the Pegasus. Maybe Elecraft will come out with another type of blanker for those of us with just atmospheric noise :)  Until then, I will just keep flipping it on/off waiting for that change when the noise is the right type... Wooo Hooo :)

Not complaining as the K2 rarely needs it. Just dont think I would lay down cash for that option the third time. Yea, OK I probably will. I dont like blank spots in my K2!!!

73,

Rich

----- Original Message ----- 
  From: G3VVT at aol.com 
  To: r.mccabe at 1967z28.com ; elecraft at mailman.qth.net 
  Sent: Sunday, September 12, 2004 8:00 PM
  Subject: Re: [Elecraft] Re Newbie


  I built the NB option for my K2 #4168 and was convinced for several months that it was not working. Nothing in my arsenal of test gear is able to check this particular feature for operation, this being the one item of test equipment that I have never seen a design published nor have located on the surplus equipment market. Probably some form of mini spark transmitter would be called for. Then one day by chance found that the NB was indeed working very efficiently on one particular type of impulsive noise.

  Depends where you live and what type of noise is giving problems as to the usefulness of the NB. Probably good on auto ignition interference and maybe static rain type of noise, though neither of these occur too often at my location on HF. The NB on my JRC NRD-515 HF receiver is similar in being choosy on noise type. The NB will be of more use when the K2 is used as a transverter source on the low VHF bands where auto ignition interference can be more of a problem.

  As an off topic subject on interference, the auto ignition interference may be aggravated by misguided technicians fitting non resistive spark plugs when servicing. The service shop I use for my small 4x4 is convinced that the correct resistive spark plugs when tested on their engine testing computer are inferior and would fit the non resistive type during services if not requested to use the resistive type. Does seem to make a difference in keeping down the ignition interference on 2m on my FM mobile radio receiver.

  Bob, G3VVT