[Elecraft] K3: just how wide is it?

Bill W4ZV btippett at alum.mit.edu
Fri Feb 8 09:02:03 EST 2008




DOUGLAS ZWIEBEL wrote:
> 
> Recently, they guys at Aptos said:
> 
> [snip]
> The pick-off point for the K3's buffered I.F. output -- right at the
> output of the 1st mixer's post-amp stage -- was selected to give the
> widest possible bandwidth. Thus there is no filtering of any kind from
> here to the BNC jack on the KXV3. This creates the opportunity to do
> *very* wide spectral sweeps, if required -- limited only by the
> bandwidth of the K3's band-pass filters.
> [snip]
> 
> OK...just how wide is the bandwidth when "limited by the K3's BP filters?
> 
> 

>From a previous post by Eric:

The K3 IF output is derived before the roofing IF filters and its 
bandwidth is only limited by the width of the front end bandpass LC 
filters, which are typically several hundred kHz wider than the ham band 
you are operating on. 

73, Eric   WA6HHQ 

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