[Elecraft] KRX3 band pass filters needed?

[Don Wilhelm]

  Mike,

You did not include the "coupling factor" information between your 
transmit antenna and the receiving antenna.
It depends on the physical separation of the antennas, the relative 
orientation, and a host of other factors that cannot be predicted 
without all the details.  An attic antenna in a one story house is 
different than in a two story house, and a vertical at one end of the 
gable for that house is different than a vertical located 200 feet away 
from the house.  Is the attic antenna a dipole oriented at 90 degrees 
from the direction of the vertical, or is the vertical more off the ends 
of the attic dipole.

No answer can be given until all details of that nature are available.  
The easy solution is to just try it and see.  If you hear the COR relay 
clicking, then you have a problem that needs to be solved.

73,
Don W3FPR

On 9/12/2010 7:00 PM, Mike Weir wrote:
> Good evening all, just ordered the KRX3 for the K3. One thing I was going to use the KRX3 for was to hook my attic dipole to the KRX3  as it is a very quite receiving antenna. The main receiver was going out to my vertical. Do I need band pass filters not sure about this? I would rather know first than pay the consequences later.
> Thanks for your time
> Mike VE3WDM
> http://ve3wdm.blogspot.com
>