The Agilent/Keysight 83204A is an adapter module that extends the measurement capabilities of the 8921A cellular site test set and service monitor, and works with the 8920B RF Communications Test Set. It delivers TDMA (IS-136) and CDPD testing functionality essential for cell site equipment validation. The module integrates Pi/4 DQPSK signal generation and analysis with bit error rate measurement and adjacent/alternate channel power assessment, enabling complete digital modulation and spectral compliance testing across legacy cellular bands.
Technical Specifications
• Supported technologies: TDMA (IS-136), CDPD
• Signal modulation: Pi/4 DQPSK
• Frequency range: 400 kHz to 1 GHz (with 8921A)
• Integrated Pi/4 DQPSK signal generator
• Integrated Pi/4 DQPSK modulation analyzer
• Bit error rate (BER) meter
• Adjacent/alternate channel power measurement
– Key Features
• TDMA and CDPD measurement capabilities for primary cellular technologies
• Pi/4 DQPSK signal generation and analysis for TDMA signal validation
• BER metering for quantitative digital transmission accuracy assessment
• Out-of-band emission evaluation via adjacent and alternate channel power measurement
• Manual or software-controlled operation via HP 11807B software integration
– Typical Applications
• Cell site equipment testing and commissioning
• TDMA (IS-136) protocol compliance verification
• CDPD data network performance characterization
• Digital modulation quality assessment
• Spectral compliance and out-of-band emission measurement
– Compatibility & Integration
The 83204A is designed as an adapter module for the Agilent/Keysight 8921A cellular site test set and service monitor, with confirmed operation on the 8920B RF Communications Test Set. The module includes mounting brackets for integration with compatible host instruments. TDMA test functions support both manual control and automated operation through HP 11807B software.
