[Elecraft] Coax Switches / dBm & W in python

[Mike Markowski]

On 2/17/19 4:32 PM, Andy Durbin wrote:
> "
> from math import *
> w2dbm = lambda x: 10 * log10(x/10) + 30
> dbm2w = lambda x: 10 ** ((x-30)/10)
> iso = lambda pwr_W, iso_dB: dbm2w(w2dbm(pwr_W) - iso_dB)
> 
> and now something like
> 
>   >>> iso(1500, 60)
> 0.001500
> 
> tells you that 1500 W with 60 dB isolation leaks 1.5 mW to the other port."
> 
> Does dividing 1,500 by 10 to the power of 6 really need a computer and a Python script?  Why not just move the decimal point 6 times?
> 
> 73,
> Andy, k3wyc

Bad example. :-)  Use messier numbers.  General shack use for quick 
conversions is the point.

73,
Mike ab3ap