SWRA370A September   2011  – December 2025 CC1100 , CC1101 , CC2500 , CC2510 , CC2520 , CC2530 , CC2530-RF4CE , CC2540 , CC2540T , CC2541 , CC2541-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Acronyms
  5. 2Standards and System Requirements
    1. 2.1 Standards
    2. 2.2 Test Equipment Suppliers
    3. 2.3 Radio Certification URLs
  6. 3Test Equipment Requirements
    1. 3.1 System Setup
      1. 3.1.1 Conducted Test Systems
      2. 3.1.2 Radiated Test Systems
    2. 3.2 Initial Considerations for Testing
    3. 3.3 Testing Reminders
  7. 4Software Setup
    1. 4.1 SmartRF Studio 7
      1. 4.1.1 SmartRF Studio 7 Start-Up Window
      2. 4.1.2 SmartRF Studio 7 Modes
      3. 4.1.3 SmartRF Studio 7 Device Control Panel
      4. 4.1.4 SmartRF Studio 7 Software User Manual
    2. 4.2 SmartRF Studio 8
      1. 4.2.1 SmartRF Studio 8 Start-Up Window
      2. 4.2.2 SmartRF Studio 8 Radio Control Window
      3. 4.2.3 SmartRF Studio 8 Software User Guide
  8. 5DUT and Test Instrument Information
    1. 5.1 DUT
    2. 5.2 Test Instruments
  9. 6Clock Frequency Tuning
    1. 6.1 HF Clock Tuning Utilizing the Internal Cap Array
    2. 6.2 LF Clock Tuning
  10. 7Transmission Tests
    1. 7.1 Transmission Power
    2. 7.2 Power Spectral Density Mask
    3. 7.3 Error Vector Magnitude
    4. 7.4 Transmission Center Frequency Offset
    5. 7.5 Spurious Emissions
  11. 8Receive Testing
    1. 8.1 Receiver Sensitivity
    2. 8.2 Interference Testing
    3. 8.3 Interference Testing with RF Generator
  12.   Appendix A Offset EVM vs. EVM
  13.   B References
  14.   B Revision History

7.1 Transmission Power

Purpose: To verify that the transmitted output power of the DUT conforms to the standards limit.

Pass Condition: See respective standards document for specifications and pass conditions.

Test Environment: Figure 7-1 illustrates the transmission power test setup.

Transmission Power Test Setup Diagram Figure 7-1 Transmission Power Test Setup Diagram
Transmission Power Test Bench Setup Figure 7-2 Transmission Power Test Bench Setup
Spectrum Analyzer Output from Transmission Power Test Figure 7-3 Spectrum Analyzer Output from Transmission Power Test

Procedure:

  • Step 1: Connect the instruments as shown on Figure 7-1 and Figure 7-2.
  • Step 2: Through SmartRF Studio, set the EM to unmodulated, continuous TX mode with the appropriate output power level and then click Start.
  • Step 3: Measure the output power level on the spectrum analyzer to confirm the output power programmed on the EM. (Reference Figure 7-3 for an example of the results on the spectrum analyzer)
Note: To obtain true output power of the unit, add back cable loss to the measured output power.
Note: Transmission power for your products must comply with the limits established by regional regulatory authorities where the products are sold. For example: ETSI (European Telecommunications Standards Institute) EN 300 328: Governs the 2.4GHz band.
  • EIRP (Effective Isotropic Radiated Power) maximum is 20dBm.
FCC (Federal Communications Commission)
  • EIRP (Effective Isotropic Radiated Power) maximum is 36dBm.
Verify your product design adheres to the specific maximum transmission power limits for the 2.4GHz band mandated by the appropriate regulatory authority for each target market.
Table 7-2 Transmission Power Results
Output Power (dBm) Design Specification (dBm) Pass/Fail?
Freq 1 (MHz) Freq 2 (MHz) Freq 3 (MHz)
1
2
Test Results: