VK2NU:
>It's hard to describe, but when comparing the 2 radios
using 500hz filter settings, it almost sounded as if the
filters on the K2 were much narrower.
I belive the K2's filters are much narrower thanthe nominal
indication. KI6WX measured around 350 Hz
for both the 400 and 700 settings.
http://home.pacbell.net/johngreb/Mod_To_Improve_K2_CW_Filter_Rejection.pdfThis is also consistent with p. 17 of ARRL's Expanded
Product Test for the K2:
Notes:
1. The crystal filter option selected was 700 Hz nominal bandwidth.
However, the actual bandwidth of the filter was considerably
narrower (about 350 Hz), making this option closer to the desired
500 Hz width than the 400 Hz option.
Having owned an MP for 6+ years, I really doubt the MP's
500 Hz filters are 800 Hz. It sounds to me like your BW measurements
are off. The K2 is definitely narrower than the MP but my guess is
you are actually hearing ~500 Hz (MP) versus ~350 Hz (K2).
73, Bill W4ZV
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