[NLRS] CONVERT 30mV to dB and mW

[Dr. Gerald N. Johnson]

On Tue, 2006-08-01 at 08:58 -0700, christenson at charter.net wrote:
> 
> I need to find a conversion table.
> 
> If you have a link please let me know.
> 
> Looking to convert 30mV to db or mW. This 30mV, is the output level printed in the manual for the transverter port on an IC-735.
> 
> Thank You,
> 
> Kris KC0REO

There may be tables. Look at the attenuator dial of a vintage HP 608
signal generator. Otherwise use the formula P = E*E / R. Works every
time. 0.018 mW. -17 dBm my calculator says.
dBm = -30 + 10 * log10 (P [in watts])


-- 
73, Jerry, K0CQ,
All content copyright Dr. Gerald N. Johnson, electrical engineer