Instruction Manual
Table Of Contents
- Table of Contents
- 1. Introduction
- 2. Radio Board Connector
- 3. Radio Board Block Summary
- 4. RF Section
- 5. Mechanical Details
- 6. EMC Compliance
- 7. RF Performance
- 8. EMC Compliance Recommendations
- 9. Board Revision History
- 10. Errata
- 11. Document Revision History
7. RF Performance
7.1 Conducted Power Measurements
During measurements, the BRD4186C Radio Board was attached to a Wireless Starter Kit Mainboard which was supplied by USB. The
voltage supply for the radio board (VMCU) was 3.3 V and for the power amlifier (PAVDD), it was 1.8 V.
7.1.1 Conducted Power Measurements with Unmodulated Carrier
The transceiver was operated in unmodulated carrier transmission mode. The output power of the radio was set to 10 dBm. The typical
output spectrum is shown in the following figure.
Figure 7.1. Typical Output Spectrum of the BRD4186C; PAVDD = 1.8 V
As shown in the figure, the fundamental is 10 dBm and all of the unwanted emissions are under the -41.2 dBm limit.
Note: The conducted measurement is performed by connecting the on-board UFL connector to a spectrum analyzer through an SMA
conversion adapter (P/N: HRMJ-U.FLP(40)). This connection itself introduces approximately 0.3 dB insertion loss.
BRD4186C Reference Manual
RF Performance
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