Wavetek SI 4040

The Wavetek SI 4040 is a communication test set that integrates signal generation, receiver measurements, and transmitter measurements in a single portable instrument. It delivers comprehensive two-way radio testing with frequency coverage from 0.4 to 960 MHz (expandable to 1850 MHz), combined analog and digital displays, and memory-card-based sequential control for automated test routines.

– Technical Specifications

Signal Generator
• Frequency range: 0.4 to 960 MHz (expandable to 1850 MHz)
• Frequency resolution: 10 Hz
• Frequency accuracy: ±1 ppm typical
• Frequency response: <0.5 dB (100 Hz to 76 kHz)
• Broadband FM modulation: 0 to 80 kHz with max deviation <250 MHz
• Phase modulation: 0 to 6 rad at 0.01 rad resolution
• AM modulation: 0 to 90% at 0.1% resolution with depth 0 to 50%
• Distortion: <1.5% at 1 kHz

Receiver Measurement
• Carrier frequency range: 0.4 to 960 MHz
• Frequency resolution: 10 Hz
• Level resolution: 0.1 dB at 50 Ω impedance
• FM demodulation deviation: 0 to 50 kHz

Transmitter Measurement
• Frequency measurement: 30 kHz to 960 MHz at 10 Hz resolution
• RF socket input range: 0.3 mW to 50 W
• RF direct input range: 3 mV to 100 mV

General Specifications
• Power measurement range: −113 to 13 dBm
• Weight: 1.95 kg

– Key Features

• Call tone encoder/decoder supporting ZVEI 1, ZVEI 2, CCIR, VDEW, EURO, NATEL, and user-defined sequences
• Programmable tone/pause duration and decoder bandwidth parameters
• Rapid automatic switchover between receiver and transmitter measurements for call testing
• Tolerance comparison and logged test result printouts
• Memory card slot for test sequence storage and sequential radio control programming
• Serial interface for external device connectivity

– Typical Applications

Two-way radio system validation and acceptance testing; transmitter power and frequency verification; receiver sensitivity and deviation measurements; call tone and signaling protocol testing; production and field service test routines.

– Compatibility & Integration

Supports standard 50 Ω RF connectors. Serial interface enables connection to printers and external computing systems. Optional modules (such as option 022 040) extend coverage to 1850 MHz.