[Elecraft] KNB1 Installation Order & Diode

Tom Johnson kq6dv73 at gmail.com
Thu Apr 4 14:18:54 EDT 2019


I've completed my K1 RF Board, 4 Band Filter Board, and Antenna Tuner Board,
and I am now moving on to Transmitter alignment before installing the
Antenna Tuner.  

I discovered the KNB1 Noise Blanker is still available and just received it. 
(Thanks, Elecraft!)    

1)  I'm assuming I should install the Antenna Tuner first, then install the
KNB1 - is that correct?

2)  As to replacing D2 (1N4148) WITH D2A (green LED) - what are the
arguments for and against that?  As I will be using the K1 in a variety of
locations in the Field it will obviously be impractical to install the diode
on site if I discover high noise level interference there.  Why not just
initially install the diode to raise the threshold in order to cover worst
case scenarios?

73,
Tom
KQ7TJ



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