[Elecraft] Re Newbie (about NB)

[Jim Sheldon]

Rich, you will be glad you have that noise blanker in there if you ever take it portable to a campground, or if someone parks a FORD
truck near your house with the engine running.  Especially if you're trying to work a weak one on the higher bands.  I use my K2 for
mobile CW, and the noise blanker is VERY effective.  I had a 93 Mercury Sable (Ford Motor Company product) that was VERY noisy
ignition wise, and the K2's NB made mobile operation very pleasant.  Without it, signals would have to be S9+ to even hear them over
the racket from the ignition.

Jim - W0EB

-----Original Message-----
From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Rich McCabe
Sent: Monday, September 13, 2004 7:43 AM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] Re Newbie (about NB)


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
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