Amps
[Top] [All Lists]
<prev [Date] next>
[Advanced]
 <prev [Thread] next>

Re: [Amps] Watts to DBM??

from [Han Higasa] [Permanent Link][Original]
To: <amps@contesting.com>
Subject: Re: [Amps] Watts to DBM??
From: "Han Higasa" <higasa@plum.ocn.ne.jp>
Date: Fri, 25 Sep 2009 18:38:46 +0900
List-post: <amps@contesting.com">mailto:amps@contesting.com> 
hi Andy

1W = 0 dBW = 1000mW = 30 dBm

A [dBm] = 10 x log (P) 

where P is power in milliwatts.

P [mW] = 10^(A/10)  = (A/10)th power of ten

whare A is power in dBm.

3 dBm = 10^0.3 = approx 2 mW
10 dBm = 10^1 = 10 mW

de Han JE1BMJ
 
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
[More with this subject...]
<Prev in Thread] Current Thread [Next in Thread>
Previous by Date:  Re: [Amps] Watts to DBM??, Jeff Blaine AC0C
Next by Date:  Re: [Amps] Watts to DBM??, Andy GD0TEP
Previous by Thread:  Re: [Amps] Watts to DBM??, Jeff Blaine AC0C
Next by Thread:  Re: [Amps] Watts to DBM??, Andy GD0TEP
Indexes:  [Date] [Thread] [Top] [All Lists]