Audio problem

[merryoncherry]

So, this brings up a good question about those small transmitters.

How are the small transmitters being powered?
Is it enough power for them to work properly?

My brother's is a CZE-05B or whatever, with its own power wall wart. It's not exactly "cheap", but certainly not expensive... I think they go for sixty bucks or so.

 

[Samuely1]

CZE 7C is what I am using. My audio cable allows me to have it 5 metres from my controller but still having issues. Will drop by Jaycar and grab the following ground loop isolator and see if it helps out. https://www.jaycar.com.au/response-ground-loop-isolator-stereo-3-5mm/p/AA3086

 

[Samuely1]

Ground loop isolator has resolved it.

 

[Skymaster]

The 7C is too powerful, especially on High. You will want to put it into low power mode.

• Unplug the power at the rear
• Hold down the power button
• Connect the power whilst continuing to hold button
• It'll go into config mode. Release they button. First is power level
• Use the Up/Down buttons to make the display say L for a low power
• Press the port button Power. You're now configuring the lowest frequency the transmitter can support.
• Use Up/Down to select 87.5MHz, the lowest allowed frequency in the AU radio spectrum.
• Press Power again. You're now configuring the highest frequency the transmitter can support.
• Use Up/Down to select 107.9MHz, the highest allowed frequency in the AU radio spectrum.
• Press power a last time to save the settings.

This will drop the power to 1.5W from 7W. Still crazy high but much better. The more common CZE-05B is 0.5 W on high and 0.1W on low and we always recommend low.

 

[merryoncherry]

The 7C is too powerful, especially on High. You will want to put it into low power mode.

• Unplug the power at the rear
• Hold down the power button
• Connect the power whilst continuing to hold button
• It'll go into config mode. Release they button. First is power level
• Use the Up/Down buttons to make the display say L for a low power
• Press the port button Power. You're now configuring the lowest frequency the transmitter can support.
• Use Up/Down to select 87.5MHz, the lowest allowed frequency in the AU radio spectrum.
• Press Power again. You're now configuring the highest frequency the transmitter can support.
• Use Up/Down to select 107.9MHz, the highest allowed frequency in the AU radio spectrum.
• Press power a last time to save the settings.

This will drop the power to 1.5W from 7W. Still crazy high but much better. The more common CZE-05B is 0.5 W on high and 0.1W on low and we always recommend low.

These instructions seem to match the CZE-05B also. I switched mine to low power on the first day, after picking up the signal ~1000m away.