Willen
Well-Known Member
I need to solve a little math of Attenuator but I am little unfamiliar with dB vs. watt. There are 3 resistors:-
R1= RF to ground
R2= Series in RF line
R3= again RF to ground
Here are two devices-
1) 1 watt FM Transmitter (12 Volt)
2) 5 watt RF amplifier which needs 500mW as an input
Problem is to connect between them. I decided to make an attenuator myself but cannot calculate the values of these resistors to drop Tx's 1 watt to 500mW (to feed amp).
help me please!
R1= RF to ground
R2= Series in RF line
R3= again RF to ground
Here are two devices-
1) 1 watt FM Transmitter (12 Volt)
2) 5 watt RF amplifier which needs 500mW as an input
Problem is to connect between them. I decided to make an attenuator myself but cannot calculate the values of these resistors to drop Tx's 1 watt to 500mW (to feed amp).