[Elecraft] KNB2 - can´t bring it to work
Karsten Eppert(DK4AS)
karsten.eppert at web.de
Sun Jan 22 14:12:02 EST 2006
Thank you Darrell,
I checked the pulse width, and in fact it is 500 usec or broader, while
the KNB2 spec is 10 to 70 usec.
Seems I have to play with C11 and C12.
Still, if could get hold of a diagram, that shows what to measure
where, it would be appriciated.
73
Karsten
DK4AS
Darrell Bellerive schrieb:
>Karsten,
>
>Sounds like the noise is outside of the KNB2's range. There is a mod for wider
>spaced noise like you describe. See
>http://www.qslnet.de/member/la3za/K2/modAny.html#KNB2
>What you describe sounds like an electric fence.
>
>There was some discusion about an improved noise blanker on the mailing list a
>while back. Perhaps Wayne or Eric might comment on whether Elecraft will be
>introducing a new noise blanker in the future.
>
>73,
>Darrell VA7TO K2#5093
>
>
>On January 22, 2006 06:43 am, Karsten Eppert(DK4AS) wrote:
>
>
>>I have sharp pulses on all bands hitting the band about once per second,
>>which the noiseblanker of my old IC 735 kills, but not so my K2 S/N 4765.
>>I can - more or less - read a circuit diagramm (I don´t understand each
>>components function in detail yet) I´ve tried some signal tracing,
>>couldn´t identify a faulty component and can´t find out, what is wrong.
>>Is there an info-sheet available, what has to be seen with a
>>dual-scope-oszilloscope at which point and at what siganl level?
>>
>>73
>>Karsten
>>DK4AS
>>_______________________________________________
>>
>>
>
>
>
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