The APF will take signals in the noise and make them very readable. It
is not something you will need to use all the time.
Mike W0MU
On 3/14/2015 10:47 PM, Fred Jensen wrote:
Sounds like something is wrong Mike. My CONFIG:DUAL PB toggles
between "nor" and "APF."
The APF takes a little practice. Except when I'm NCS of our traffic
net, I run about 250 Hz DSP BW. I have found that the APF gets very
hard to tune with anything less than that and 300 Hz is even better.
APF performance also seems to be somewhat connected to AGC settings.
Once I mastered it, mine works great, I use it all the time to pull
very weak SOTA guys running a few watts to a compromise antenna out of
the noise.
73,
Fred K6DGW
- Northern California Contest Club
- CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015
- www.cqp.org
On 3/14/2015 9:31 PM, Michael Marx wrote:
When I go into my K3’s CONFIG menu to the Dual PB setting, The only
value I see in the screen is two dashes — Turning the knob that
normally will change a menu value has no effect. I’m wondering if my
APF is working properly as even when I tune in a station on CW with
the APF, it is very, very hollow and rings a lot. Maybe this is
normal. It really does not help with a weak signal as it rings so
badly you can’t hear the weak signal. I don’t think this is what is
supposed to happen? The APF in my Icom IC746 works much better (and
probably shouldn’t).
But it does seem that the item in the config menu doesn’t work at
all. Is this normal, or is this because I’m using the latest beta
firmware or something is wrong.
73 all,
Mike WB0SND
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