[Elecraft] K6SE Sprint Summary for Team Elecraft

[George, W5YR]

When I get my K2, I intend to evaluate blowby with spectral analysis -
which I have done before with a K2. Then I want to extract the 4.915 MHz IF
signal from the Post-Mixer Driver and feed it into the Receive Antenna of
my Icom 756 PRO tuned to 4.915 MHz and see how the IF DSP processing works
in conjuction with the excellent K2 front-end. Should make quite a receiver
. . .

Earl, I have a feeling that ARRL is going to have to start measuring a
number of additional aspects of modern radio performance, such as filter
blowby where crystal filters are used.

73/72, George    
Fairview, TX 30 mi NE of Dallas in Collin county EM13qe   
Amateur Radio W5YR -  the Yellow Rose of Texas
In the 57th year and it just keeps getting better!


k6se@juno.com wrote:
> 
> James Hammons wrote:
> 
> "I feel the criticism of the crystal filters for not rejecting nearby
> signals is bogus.  The K2 had the best Close in IMD dymanmic Range and
> Blocking range ever measured by the ARRL Lab.  That is where it beats the
> big boys."
> ==========
> I totally agree that the K2's IMDDR3 and BDR figures are better than any
> receiver now in the field.  However, my criticism about the K2's xtal
> filter has absolutely nothing to do with that!!!
> 
> I'm talking about what is referred to as "bleedthrough" or "blowby".  If
> you don't know what that is, let me know in a private e-mail and I'll
> explain it.
> 
> ARRL does not test for xtal filter bleedthrough, BTW.