[Elecraft] RE: Does anyone miss passband tuning, audio notch on K2?

George, W5YR [email protected]
Mon Jan 27 13:43:00 2003


Dan, I have no idea what you are talking about.

I am *not* doing any transmitting in the scenario I described - rather
I am trying to read a weak CW signal that has a comparably weak
carrier essentially right on top of it.

Even if I were working the weak station, how would my use of a notch
filter or any other *receiving* means possibly cause QRM to "the other
guy"? And who do you mean by "the other guy?" : my weak CW contact or
the carrier generator?

If "the big black knob on the front" is the tuning control for the K2,
that is the problem: no amount of tuning will move the interfering
carrier off my desired signal so that I can copy him since they would
move together.

Just so we are on the same page:

Say I am listening to a weak CW signal that I am copying ok. Then an
equally weak carrier comes on close enough in frequency that it tends
to "fill in the blanks" and obscure the spaces in my desired signal's
code characters so that I can no longer read it. I find nothing on the
K2 that will deal with this problem since it has neither a notch
capability (IF or audio) or some sort of passband tuning that would
remove or attenuate the interfering signal. I then remarked that in
comparison, my other radio - an Icom PRO2 - does have a good notch
filter and with it I can attenuate the interfering carrier and copy
the weak CW signal. That is all I would do - activate a notch filter.
On that basis, I posted that I supported the use of a notch filter for
the K2.

I'm sorry, Dan, but if you are trying to criticize me for something, I
am afraid that you are just going to have to respect old age and speak
a little louder and clearer!   <:}

Please try again . . .

73/72, George
Amateur Radio W5YR -  the Yellow Rose of Texas
In the 57th year and it just keeps getting better!
Fairview, TX 30 mi NE of Dallas in Collin county EM13qe
K2 #489  IC-765 #2349 IC-756 PRO  #2121 IC-756 PRO2 #3235

----- Original Message -----
From: "Dan Barker" <[email protected]>
To: "Elecraft" <[email protected]>
Sent: Monday, January 27, 2003 5:46 AM
Subject: FW: [Elecraft] RE: Does anyone miss passband tuning, audio
notch on K2?


> In the situation you describe, I certainly hope you're just reading
the
> mail. To QSO under these conditions is most definately causing
Intentional
> QRM to the other station.
>
> Just because the nearby signal is not a problem on the other end of
the Q
> doesn't give you the right to QRM the other guy. (Use the big black
knob on
> the front!).
>
> Dan / WG4S / K2 #2456.