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If one diode is bad - your resistive variable reading would change between FWD and REF and if you reversed the leads on those same two spots the variable would be infinite - so if the Diode is open, it would show infinite

If Diode is shorted, the variable would NOT BE EQUAL in CAL or SWR settings.

If diodes are good, they would show variable at mid point to be equal within 1K of tolerance. in my test 3.5...

[QUOTE="Handy Andy, post: 737041, member: 52309"] If one diode is bad - your resistive variable reading would change between FWD and REF and if you reversed the leads on those same two spots the variable would be infinite - so if the Diode is open, it would show infinite If Diode is shorted, the variable would NOT BE EQUAL in CAL or SWR settings. If diodes are good, they would show variable at mid point to be equal within 1K of tolerance. in my test 3.5... [/QUOTE]

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