[1000mp] Yaesu FT1000 Key Clicks

George, W5YR [email protected]
Tue, 13 Jan 2004 23:42:33 -0600


Thanks, Earl . . .

I have to have surgery this week so it may be a little while before I can do
anything more on the artifact spectra, but I'll let you know when I have
anything new.

73, George W5YR
[email protected]


----- Original Message ----- 
From: "Earl W Cunningham" <[email protected]>
To: <[email protected]>; <[email protected]>
Sent: Tuesday, January 13, 2004 2:15 PM
Subject: Re: [1000mp] Yaesu FT1000 Key Clicks


> George, W5YR wrote:
>
> "What are your thoughts about the effects of receiver bandwidth and IF
> filter shape, et al upon the user's perception of clicks from another
> station? I realize that this introduces another variable into the
> situation:  the other op's receiver and his use of it. But, even when
> ARRL Labs uses an r-f spectrum analyzer, the spectral plot they get is a
> function of the receiver function of the SA and its settings."
> ==========
> If you're using a spectrum analyzer, you must use a wide filter in the
> receiver to see a wide spectrum.  A clean CW signal should only occupy
> less than 0.5 kHz of BW at the, say, -60 dB points (or greater!).
>
> If you're listening for key clicks, set the receiver to a narrow CW
> filter.  For a clean CW signal, you should not hear any clicks outside of
> the receiver's passband.
>
> 73, de Earl, K6SE