[Elecraft] Using 2nd Rx to reduce noise

[Vic K2VCO]

Bill W4ZV wrote:
> 
> Mike Keller wrote:
>> Has anyone found a way to use phase cancel external noise heard in the
>> main Rx using the second Rx and a "noise antenna"
>>
> 
> Not internally, but you don't need the KRX3 to do that.   You can use an
> external device such as the DXE NCC-1, MFJ-1025/1026 or Timewave ANC-4 (in
> order of effectiveness based on personal experience with all 3).  Noise
> canceling works best if the noise is a point source, although it can
> sometimes help reduce noise from a general direction (such as lightning
> QRN).
> 
> http://www.dxengineering.com/Parts.asp?ID=1227&PLID=215&SecID=114&DeptID=12&PartNo=DXE-NCC-1
> http://www.mfjenterprises.com/Product.php?productid=MFJ-1025
> http://www.timewave.com/support/ANC-4/anc4.html

If you have the KXV3 (the so-called 'transverter interface' which is much more than that) 
you can simply connect the noise canceller between the RX IN and RX OUT. This enables you 
to avoid using the kludgy relay in the device for t-r switching.

Bill, is that in order of increasing or decreasing effectiveness?
-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco