Brent wrote:
> Hello Skipp,
>
> I have all known tones turned on and active..(double checked that a few
> times)
> It will not decode them or show them at all
> it will show and decode all below 100.0 with no problem, and it does that
> like it should with no delay..
>
> but if i try the 100.0 it has to have that tone signal present for at least
> 3 seconds before it will show or decode it..
>
> it is like a audio amp gone bad or some thing.. but i did swap them around
> and reset the x2122 in the unit and still no difference..
> I must be missing some type of failure somewhere..
> Brent
I'd start looking at the audio response from the source first. It sounds
like there there's a low pass that's passing too low.
Look at the audio going into the controller with a scope. There should
be very little variance in tone level up to about 250-300 hz. It also
need to be a VERY clean sine wave. If there's even a little distortion,
it won't work as well.
Maybe the detector in the receiver is a bit out of alignment? I see that
all the time.
--
Jim Barbour
WD8CHL
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