Why am I not allowed to use my own antennas for the STD-602-429?

The STD-602-429 is targeted for use in the 429 MHz band in Japan.

The Japanese radio law requires that the user install only the specific antennas registered to the STD-602-429. Users need to be aware of this when choosing a radio module to be used in Japan.

To find out which antennas can be used with the STD-602-429, please refer to the operation guide.