Posted by
Jim Brown-10 on
May 03, 2012; 5:42pm
URL: http://elecraft.85.s1.nabble.com/Re-question-for-psk-users-tp7517322p7524542.html
On 5/3/2012 5:51 AM, Joe Subich, W4TV wrote:
> That's not true. Every rig manufactured today provides a CW filter
> option that works very well for reducing/controlling the AGC blocking
> issue. The FT-950 provides selectivity down to 500 Hz in its "PKT"
> modes as do many other "affordable" rigs.
Yes, but some rigs are more versatile than others, and some operators
don't bother to learn enough about their radios to use the options that
they provide. Some rigs may not allow digital transmission at the
frequency where that filter is centered, or may not allow it to be
switched in for SSB modes. In other cases, the architecture of the rig
may require that a different input of the radio be used for the digital
modulation. For example, I think I remember correctly that I had to
feed the Patch input of my FT1000MP for AFSK to center it in my RX
filters and for VOX to work. Or maybe it was the Packet input as you
noted for the FT-950. There's also the matter of learning to use all
the controls on the radio to best advantage, including, as others have
suggested, the RF gain control. Back in the old days, AGC was rarely
used on CW, we set AF gain to a suitable level and rode the RF gain
control as needed, and switched in a crystal filter to bring out the
signal we were interested in.
One of the things about becoming a better operator is taking the time to
learn these things. Those who choose not to do so will continue to be
limited by their ignorance.
73, Jim K9YC
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