Meaning
National technical standard in South Korea governs the electromagnetic compatibility and transmitter performance characteristics of wireless communication devices. Manufacturers must design and test their wireless modules according to KS X 3124 to ensure they do not emit spurious radiation that interferes with other radio services. This standard defines the test procedures and performance limits required for securing national certification.
Evaluation Range
Testing involves measuring both transmitter and receiver characteristics across the entire operating band. Laboratory technicians evaluate the occupied bandwidth and adjacent channel leakage ratio to ensure precise spectral behaviour. These measurements are carried out using specialized spectrum analyzers and radio communication testers.
Conducting these tests across a range of temperature and voltage conditions verifies that the device remains stable under varying physical environments, which is a prerequisite for receiving the official conformity mark.
Equipment Classification
The specific requirements vary depending on the intended use and power output of the transmitter. Low-power, short-range modules face less demanding limits than high-power cellular transmitters. This classification determines which parts of the standard must be applied during the official test sequence.
Hardware Adaptation
Designers must incorporate filtering and shielding into their board layouts to comply with these limits without reducing transmitter efficiency. This is particularly important for multi-radio devices where multiple modules operate in close proximity. Incorporating these measures early in the development cycle prevents costly board redesigns during final certification.
