Re: k3 filters and kx3
Posted by
Terry Posey on
Dec 14, 2011; 1:51pm
URL: http://elecraft.85.s1.nabble.com/Balun-at-input-or-output-of-tuner-tp7087668p7093583.html
The Elecraft KX3 architects should weigh in on this topic - a simplified
block diagram would be helpful. The KX3 roofing filter is likely a analogue
filter realized with precision op amps and operating at the KX3
low-frequency IF (11 KHz?) - not "baseband". The roofing filter is applied
prior to the ADC and DSP, and not at baseband audio frequencies, else it
would not be roofing filter, but merely a post audio filter.
Terry K4RX
No, the KX3 roofing filter module is completely different. It works at
"baseband" frequencies, rather than the 8+ MHz IF that the K3 uses. You will
not be able to use K3 filters in the KX3.
Bruce, N1RX
> Can the K3 roofing filters be used in KX3 ?
> Adi
> 2E0TTX
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