[Elecraft] Elecraft] Timewave DSP-599zx

[Jim]

I have the Timewave, the NCC-1, a MFJ-1026 noise canceller, beverages and commercial mag loops, and my comments are:

1.  I find the Timewave Noise reduction is of little value, the K3 NR is superior
2.  The Timewave has an EXCELLENT audio amplifier and completely removes the "hash" from the K3 audio.  I use Bose QC-15 earphones that reproduce high frequencies very well.  
3.  The Timewave DSP filters have little ringing and are steep.  I adjust the low freq 
cutoff to 300 Hz and the high freq to 1,200 Hz.  This TOTALLY eliminates the "hash"from the K3 audio.
4.  If you have an rf noise issue, the Timewave will not help any more than what the K3 does.
5.  The MFJ does work as advertised, but it is difficult to adjust.  When adjusted, it does give great nulls.
6.  The NCC-1 also works as advertised, and is far easier to adjust.  
7.  The "noise antenna" is VERY important to the performance of any noise canceller.
8.  Loops are great to null a single noise source.  It is inferior to a directive (gain) antenna. 

I went totally overkill for my physical location in California, with two PRO 1B loops and two phasers that can address two noise sources.  I no longer have the room for beverages, which were the best with a phaser for 160-40 meters for my physical location

Jim
W6AIM








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