RADXA 3C - external atenna is used for 3C, is there a need to change the hardware? (e.g. removing resistors

#1

Product in review : RADXA 3C

question:

if external atenna is used for 3C, is there a need to change the hardware? (e.g. removing resistors, etc)

@radxa
@RadxaYuntian

#2

It will be similar to the modification for ROCK 4: New PCB Version? 1.3 ->1.4

You will need to move C305 to C240, and solder a connector on ANT1. C242 and C243 should be tuned based on your specific antenna, so we can’t give any recommendation here. However, they are not required for external antenna to work.

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Please refer to the 3C’s schematic page 22 for detailed circuit design, and the placement map for part location.