Topband: NOISE CANCELLERS

Tom W8JI w8ji at w8ji.com
Sat Nov 16 18:34:45 EST 2013


>
> What is the best acquisition between Timewave ANC-4 or MFJ-1025?

While all of them will work, the Timewave phase adjustment causes a huge 
change in level. It also has less phase range. That is bad, because you have 
to go back and forth between the controls more.

The phase should really only change phase, and the level or balance should 
really only change the signal levels. The MFJ is much better at control 
action than the Timewave, and it has much better IMD performance. The DXE 
NCC is, of course, better than the MFJ for everything. The DXE has much 
wider phase range and better IM performance, but you pay for the complexity.

73 Tom 



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