-NEED HELP- boosting the Sennheiser g3 output power

[Simon the soundie]

Hi!

I'm looking for ways to boost the Sennheiser g3 output power to increase the distance it's able to transmit.
Default it outputs 30 mW while higher end transmitters go all the way up to 250 mW.

 I'm not an EE, just a soundie

Link to Dave's teardown of the G3:

Any and all help is greatly appreciated!

/Simon

[Richard Crowley]

Sennheiser G3 transmitters are capable of higher power for models programmed for other markets (like USA).  But the European Union has determined that it is not safe for Europeans to have a transmitter strapped to their body that exceeds 25mW.  Here in the USA, I believe the limit is 100 mW.  And you see what that kind of radical RF radiation has done to us!   

[dmills]

I would ignore the transmitter in the first instance and pay attention to the receiver and its aerials (There are much bigger wins to be had here).

Using good quality Yagis cut for the correct band (Not broadband ones) with a diversity receiver and GOOD quality coax is a major win as much for the reduction in potential interference from behind the aerials as for the increased signal strength. You can gain much more here then the 6dB that is the difference between 25mW and 100mW, and it does not hurt your battery life.
 
Note however that preamps (unless carefully selected to make up cable and distribution losses) are usually not a win, they tend to increase the sensitivity to overload as much as they improve the RF noise figure.

The power limits usually have more to do with limiting the interference potential then any health concerns (After all a cell phone can put out a watt or so).
The OEM will have set up the transmitters to suit your licensing regime. In the UK it is 10mW for a handheld and 25mW for a body worn pack unless you make special arrangements, not usually a problem.
I have licensed 5W portable link transmitters before now, but that is kind of specialist.