Limited Modular Approval Conditions That Bind the Host Design
Limited modular approvals legally bind host PCB layout, enclosure shielding, and power regulation to the exact conditions stated in the grantee's filing notes.
Host Verification Testing
Meaning
System checks assess the performance of a wireless module after it has been permanently integrated into its final consumer or industrial device. Host verification testing confirms that the local host processor can correctly initialize and control the radio through the agreed digital interface. It validates that the host power supply remains stable during the high current bursts required for radio transmission.
Logic Verification
Software commands sent from the user interface must result in the intended frequency and modulation shifts at the antenna. During host verification testing, engineers observe the signal on a spectrum analyzer to confirm successful handshake cycles. This prevents silent failures where the radio reports success while failing to output a signal.
Power Integrity
Transceiver bursts draw sudden current that can cause voltage dips on shared internal power rails. A robust host verification testing process includes measuring ripple during simultaneous operations of the CPU and the radio. If the power drops too low, the data stream becomes corrupt or the host crashes.
Regulatory Check
Spurious emissions from the host hardware can combine with the intentional radiator output to exceed limit levels. Final host verification testing look for noise generated by displays or charging circuits that might degrade the receiver sensitivity of the wireless part. Success here indicates the product is ready for formal laboratory submission.