[TowerTalk] Measured S-meter db/S-unit TS-450

[Pete Soper]

WB4MNF Bob writes:

> From 1 to 9 S units his is 25db (power ratio) = 50db voltage ratio
> which is pretty darn close to 48db or 6db/S unit. As to what S9
> means on K3KO meter, he'll have to measure it to find out.

The QST review of the TS450 measured S1=1.7uv, S9=31uv. Reviewing the basic 
math chapter of the Handbook:
   db = 20 log (E1/E0)
and where impedance is constant, the power difference is:
   db = 10 log (E1squared/E0squared)

These both come out to 27db, very close to Brian's measurement.

Regards,
Pete
KS4XG

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