BFO Clarification?

Mark <Mark@...>
 

All

I'm happy soldering here, but have a question:

In the text for the BITX20 it says "If you are using this for 14MHz
and above, the BFO will need a coil in series with the crystal".
This is what I have done - seems to work OK (see G0MGX folder in
pictures on reflector).

I just saw the alternative coil data that has been posted on the
reflector and that says "L3 was used in series between the crystal
and the 22pf trimmer cap plus I added 7pf Mica fixed cap across the
trimmer. Needed for USB"

I am therefore confused!

Can anyone shed any light on this?

Mark. G0MGX

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