[Elecraft] K3: narrow filter

[Jim Brown]

On Wed, 14 Jul 2010 14:12:45 -0300, Jorge Diez - CX6VM wrote:

>So now I have another question, I think I have room for only one more
>filter, so how will affect DIVERSITY if I have 250Hz, 400Hz, 1.8kHz in MAIN
>and 400Hz, 1.8kHz in SUB?

>I cannot do DIVERSITY with a 250Hz narrow filters (because I will not have
>it in both receivers), buy the K3 will work OK using the 400Hz I have in
>MAIN and SUB?

It is BEST to have the same filters in both RX for diversity, but diversity 
will still work with different filters, maybe not as well. The reasons relate 
to amplitude and phase response in the IFs of the two receivers. The only 
reason I can think of for not putting it in both receivers is money. But 
you're going to want two, so order two now and save the cost of the second 
shipping. :)  

73, Jim K9YC