Topband: NOISE CANCELLERS

[Carsten Esch]

... I would like to try the DXE NCC-1 too (have one sitting here) to 
fight some noise on 80/160m ...

I have a Hi-Z 8-circle for RX, TX antenna is a matched tower ...

The DXE manual says:
----
"The NCC generally works best when both antennas have similar patterns, 
polarization, and S/N
ratios. You may have to experiment to find the best antenna, but 
successful operation occurs more
often with similar antennas.

Use with Beverage or Other Low Noise Antennas
The NCC-1is probably most useful when used to enhance reception on lower 
frequencies. The NCC-1
is often useful even if the station already employs low noise 
directional receiving arrays.
A suggested method follows:
Connect one Beverage or other similar low noise receiving antenna to INPUT A
Connect another Beverage or another low noise receiving array to INPUT B
Connect theNCC-1 RECEIVER connector to the receiver's input line.
If you are using a Reversible Beverage, runtwo feedlines back to 
theNCC-1 INPUT connections. Then use the NCC-1 to control the 
directivity and nulls.
----
Any suggestion on how to use the unit best? Set up another single RX 
Element? Use 'the tower'?

Thanks!

Carsten, DL6LAU


Am 17.11.13 00:34, schrieb Tom W8JI:
>>
>> 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
> _________________
> Topband Reflector
>
>