Samsung Galaxy S3 Patch Lead i9300/ i9305


Key Features


  • Converts from phone connection to Antenna (FME) connector

  • High quality Samsung RF connector

  • 30cm high quality RG174 cable

  • Boost signal strength and coverage of your handset

  • Improve your mobile internet speed and reduce call dropouts.




  • The Samsung Galaxy S3 has a small gold RF connector which is can be accessed by taking off the back cover

  • This patch lead is used on a daily basis by staff (on Galaxy S2 model) to increase the speed and reliability of mobile broadband internet, and to extend coverage of the phone when travelling to remote regions of Australia

  • An external antenna produces an immediate increase in signal which results in faster mobile internet access, much longer usable range from a cell tower, improves voice quality and reduces call dropouts.


What does a patch lead do?


  • Most antenna cables terminate with a standard connection, most commonly a female 'FME' connector

  • To plug an antenna into your phone or wireless modem, you need a short cable that acts as a conversion from the FME connector to the device-specific connector that will plug into the antenna port on your device

  • The antenna port on the Samsung Galaxy S III was installed for testing purposes, but is fine to connect to and use as an external antenna port.


samsung RF port patch lead cable



Where do I plug my patch lead in?


  • Some Samsung Galaxy S3 models have two removable external antenna ports denoted W1 and W2 as embossed into the plastic

  • For normal mobile phone calls and internet access, W1 should be used in most circumstances

  • The Samsung Galaxy S3 engages MIMO in very strong 4G signal areas only, so a second patch lead is only required when attempting to maximise 4G speed

  • The S3 has a 5MHz LTE bandwidth and cannot operate as fast as a normal 4G modem regardless of whether a patch lead and antenna are used.


A heads up!


  1. Be careful when inserting the lead, and be cautious of inexperienced sellers - using cheap imported leads and/or inserting leads at an incorrect angle can damage your phone's RF port by permanently activating the external antenna

  2. Never pull the lead sideways or apply force across the lead - patch leads are highly vulnerable to shearing force, which can damage the lead and the internal connector.


samsung galaxy s3 external antenna port location


For shorter higher quality SMA Samsung test cables, please see the following links:




SKU MS705-FMEM-174
Shipping Weight 0.0450kg
Shipping Width 0.050m
Shipping Height 0.050m
Shipping Length 0.300m
Shipping Cubic 0.000750000m3