[Elecraft] Note on KXAT1 wiring diagram

[Pierre Desjardins]

While studying the KX1 ATU wiring diagram, I found this:

There is an error on the KXAT1 schematic. TP1 next to R2 does go to D2's =
cathode, C8, and the nearest pad of REFL cal pot R2. It does not go to =
U1-18 as shown on the schematic.
=20
What this means, is that the REFL SWR sensor output to TP1 does not vary =
with R2, but is always the actual REFL sensor output prior to the trim =
pot adjustment.  TP1 should be shown on the schematic as being connected =
to the "top" of REFL cal pot R2.
=20
This is a small error on the schematic, but it does not affect the null =
setting of C9. It's preferable, actually, since the position of the REFL =
cal pot won't affect the true REFL sensor voltage reading when adjusting =
null cap C9.

72 de Pierre VE2PID





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