Revision: 1.0
Sapphire-BTX Setup Guide
Copyright © 2022 Domo Tactical Communications (DTC) Limited. All rights reserved.
Commercial in Confidence
Page 7-28
7.2 dBm to Watts Conversion
It will be useful to know the equivalent dBm to watts power conversion when adding attenuation to the
RF output. BTXs have a maximum RF output of 100mW (20dBm).
When calculating, do the sum in dBm then convert to Watts:
i.e., 20dBm-3dBm = 17dBm (50mW)
dBm
Watts
0
1.0mW
1
1.3mW
2
1.6mW
3
2.0mW
4
2.5mW
5
3.2mW
6
4mW
7
5mW
8
6mW
9
8mW
10
10mW
11
13mW
12
16mW
13
20mW
14
25mW
15
32mW
16
40mW
17
50mW
18
63mW
19
79mW
20
100mW