TIS and TRP…
These two key measurements define how well a device performs under real-world radio conditions, not just in ideal lab setups.
TRP (Total Radiated Power) – Quantifies how efficiently the device transmits RF energy, measured across a 3D spherical field in an anechoic chamber.
→ Higher TRP = improved uplink performance, better throughput at the cell edge, fewer HARQ retransmissions and lower average power consumption.
TIS (Total Isotropic Sensitivity) – Measures the device’s ability to receive low-level signals from all directions, representing its practical receive sensitivity.
→ Lower TIS = stronger downlink robustness, fewer dropped calls, and more stable data sessions in marginal coverage areas.
TRP and TIS are mandatory tests for regulatory and carrier certification and even a few dB improvement can enable a higher-order modulation scheme and reduce fallback to lower throughput modes.
Whether you’re launching a smartphone, module or IoT device, understanding these metrics are essential for field reliability.
Need support validating your RF or field test results? IoTAS can help.
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