[Alinco] DX-70 distortion from noise blanker
Lionel Booth
n5lb at charter.net
Tue Apr 12 18:33:49 EDT 2005
Ray LaRue wrote:
>I recently purchased a used Dx-70 for my mobile installation and basically
>like it very much. However the noise blanker is very aggressive, so much
>so, that although it does a good job on repetitious noise pulses, it seems
>to create rather severe distortion on the desired station received audio.
>It also seems to respond negatively to off frequency stations when on the
>NB. In other words when the NB is on, there seems to be more cross
>modulation from strong off frequency stations, than with it off.
>
>Is there any known way to soften or adjust the levels, for the noise
>blanker, so it won't be so aggressive?
>
>Your attention is appreciated.
>Ray, W4BYG
>Naples, FL
>
>List Owner: Ray Brown, KBØSTN
>
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>Alinco at mailman.qth.net
>http://mailman.qth.net/mailman/listinfo/alinco
>
>
>
I have observed the same issue in a mobile installation. To the best of
my knowledge there isn't any way to change the threshold. I find I can
either have a distorted, nearly unreadable signal, or a signal buried
under noise.
Lionel
N5LB
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