Meaning
Regulatory certification that allows a wireless transmitter to be integrated into various host devices without requiring additional radio-frequency testing for each host is a key driver of efficient product development. Obtaining modular transmitter approval requires the wireless module to have its own radio frequency shielding, buffered modulation inputs, and power supply regulation. This certification is granted by authorities like the Federal Communications Commission.
Engineering Constraint
Specific design guidelines must be followed by the module designer to meet the strict regulatory criteria. For a modular transmitter approval, the transmitter must be tested with specific antennas and must maintain a defined physical separation from the user. These constraints must be documented in the module’s integration manual.
Host Integration
Hardware integrators must follow the instructions provided by the module manufacturer to maintain the validity of the certification. If the host device violates the conditions of the modular transmitter approval, the entire finished product must undergo full regulatory testing. This situation arises when an antenna with a higher gain than the certified one is used.
It also occurs if multiple transmitters are located close to each other, which requires an additional evaluation for co-location compliance.
Certification Benefit
Development timelines and test costs are significantly reduced when using pre-approved wireless components. While obtaining an individual modular transmitter approval is expensive and time-consuming, it avoids the recurring expenses of testing every new host device that uses the module.
