The Agilent/Keysight E4437B is a digital RF signal generator from the ESG-DP series designed for research, development, manufacturing, and troubleshooting applications. It delivers high spectral purity and advanced digital modulation capabilities across a wide frequency range with flexible output power control. The instrument supports standard and custom digital modulation formats alongside versatile analog modulation techniques, making it suitable for complex signal generation tasks.
Technical Specifications
• Frequency Range: 250 kHz to 4 GHz
• Frequency Resolution: 0.01 Hz, 10.0 mHz
• Output Power: +13 dBm down to -136 dBm (standard); Option UNB provides +17 dBm down to -136 dBm (≤1 GHz), +16 dBm down to -136 dBm (>1 to 3 GHz), +13 dBm down to -136 dBm (>3 to 4 GHz)
• RF Modulation Bandwidth: Up to 35 MHz
• Phase Noise: SSB <−134 dBc/Hz at 20 kHz offset (1 GHz carrier); <−138 dBc/Hz typical
• Harmonics: <−30 dBc at ≤+4 dBm output
• Non-Harmonics: 3 kHz offset), 10 kHz offset) from 250 kHz to 250 MHz
• Output Impedance: 50 Ω
• Reverse Power Protection: 1 watt nominal – Key Features • Modulation support: AM, FM, phase modulation, pulse modulation, wideband FM, and custom digital modulation (>15 FSK, MSK, PSK, QAM variations) plus I/Q
• Optional dual arbitrary waveform generator: 40 MHz sample rate, 14-bit I/Q resolution, 1 Msample (4 MB) playback and storage memory
• Optional real-time I/Q baseband generator
• GPIB and RS-232 connectivity
• Firmware personalities for 3GPP W-CDMA, cdma2000, IS-95-A, GSM/EDGE, 1xEV-DO, and Bluetooth – Optional Configurations • Option 1E5: High stability timebase
• Option UN5: Multichannel IS-95 CDMA personality
• Option UN7: Internal bit-error-rate analyzer
• Option UN8: Real-time I/Q baseband generator with TDMA standards and 1 Mbit RAM
• Option UND: Dual arbitrary waveform generator
• Rackmount and connector relocation options available
