1:1 Audio Device Common Ground Isolation Coupling PC Navigation GPS AUX Anti-inteference

1:1 Audio Device Common Ground Isolation Coupling PC Navigation GPS AUX Anti-inteference

Product Description:
- Audio equipment common ground noise isolation board vehicle navigation GPS current acoustic filter to eliminate AUX interference
- Audio equipment common ground isolator coupling circuit. An effective solution to the coground interference generated by the on-board computer navigation GPS AUX multi device application.
- Common ground isolator audio equipment can solve the  noise and current noise that caused by common ground for computer and sound console public broadcasting system, car amplifier mixer and external audio equipment (onboard computer, GPS navigator, MP3, MP4, mobile phone etc.) a common power supply.
- There are two kinds of white needle seats on the product board:2.0-3P and 2.54-3P.Which kind do you want to buy,please let us know.
- The audio transformer insulation adhesive tape will be a slight color of each batch, but they have the same quality.
- High quality 1.6MM double-sided glass fiber board, red chili oil resistance welding layer.
- This product is in accordance with the requirements of foreign customers.The customized audio port design is very user-friendly.The audio input and output port circuit uses 3.5 stereo headset socket and 3P hub terminal so you can use 3.5 stereo audio cable to connect the audio signal,can also connect the signal with the stereo audio signal shielding line 2.0-3P or 2.54-3P port plug.

Note:
- The circuit board needs to be equipped with shell.The internal PCB has been revised and the new version PCB size is 5.5cm x3.0cm.
- Not all noise is a common noise.Buyers need to judge whether yuor noise source for own equipment is caused by common ground.
We can not sure that it can play a good role in the coupling isolation,if you buy this product in the absence of  cause for equipment noise source.

Connection application description:
- Custom:selecte one end as input, the other end as output, regardless of the input and output;
- Both the isolator ends are 3.5mm AUX sockets, can directly insert into the 3.5mm audio plug.

Features:
- Small size, easy to install
- Solve the common problems of common ground, completely eliminate annoying current sound
- No external power supply, passive perfect isolation to eliminate noise;
- Professional symmetry design of  the circuit board effective reduce noise;
- Stable and reliable performance;
- Support plug and play, supporting hot plug;
- Built-in interface protection circuit.
- PCB specification:  55mm x 30mm x 15.5mm
- Four fixed holes, center distance is about 47mm x 23mm
- Board can be installed 3mm diameter cylinder screws and 3mm screw aperture.

How to determine whether the noise is produced common ground:
For car computer, car GPS, car navigation, car MP3, 3.5aux audio interface connect to the 3.5aux interface bodywork SZM through the audio cable.When you supply power to vehicle,computer,GPS,MP3 devices with cigarette lighter,car audio system will has AC noise.please to determine whether it is caused by common ground based on the following method:
Find a passive headset or mobile phone headset and link it to the 3.5aux interface for vehicle,computer,GPS,MP3 devices.See if there is noise with the headset.
If there is no noise,you can be sure that the noise for your device bodywork aux connection is caused by common ground.
Find a passive device, such as MP3, or mobile phone. Make sure the mobile phone or MP3 requirements is battery powered and has not any connection with the car power.
Connect to the 3.5aux bodywork SZM,listen to wether there is noise in the car when listening to music.If there is no noise,you know that the former connection noise is caused by common ground.
If there is noise beyond the above condition,it is not caused by a plurality devices common ground.It may be their own fault / bottom plate amplifier noise, or the sound source signal and the connecting line these aspects cause.This time you can not solve the problem using the isolation board.Please self checking before buying,this is very important.

Package List:
- 1 x 1:1 Audio Device Common Ground Isolation