E4437B

Keysight Technologies (Agilent HP)Signal

The Keysight (Agilent/HP) E4437B is a 4 GHz digital RF signal generator from the ESG-DP series. It is designed to offer high spectral purity and versatile analog and digital modulation capabilities. It features an optional dual arbitrary waveform generator or real-time I/Q baseband generator, supporting custom digital modulation and standard communication protocols for R&D and manufacturing applications.

RF and Microwave Signal Generation Wireless Communications

Specifications

Frequency

Parameter	Value
Minimum Frequency	250 kHz
Maximum Frequency	4 GHz
Frequency Resolution	0.01 Hz

Output

Parameter	Value
Output Power Range	-136 dBm to +13 dBm (typical, frequency dependent)

Modulation

Parameter	Value
Modulation	AM, FM, Phase, Pulse, I/Q, FSK, MSK, PSK, QAM
Sweep Modes	Step, List (Frequency and Power)
AM Depth	0 to 100%

General

Parameter	Value
Reference Oscillator	10 MHz (Internal)
Interfaces	GPIB, RS-232

Physical

Parameter	Value
Dimensions (W×H×D)	426 x 133 x 432

Frequency Specifications

Parameter	Value
Frequency Range	250 kHz to 4 GHz
Internal Reference Frequency	10 MHz

Amplitude Specifications

Parameter	Value
Output Impedance	50 Ω

Front Panel & Interfaces

Parameter	Value
RF Output Connector	Type-N (female)

Spectral Purity

Parameter	Value
Harmonics	<-30 dBc (output <= +4 dBm)
Non-harmonics (Spurious)	<-65 dBc (250 kHz to 1 GHz, offset >250 Hz)

Performance

Parameter	Value
Amplitude Accuracy	±0.5 dB (250 kHz to 1 GHz, level >-127 dBm)
RF Output VSWR	< 1.5:1 (typical, < -2 dBm)

Environmental

Parameter	Value
Operating Temperature	0 °C to 55 °C
Storage Temperature	-40 °C to 71 °C

Power

Parameter	Value
Power Consumption	200 W (maximum)

Inputs & Outputs

Parameter	Value
External Reference Input Frequencies	1, 2, 5, 10 MHz

Physical & Environmental

Parameter	Value
Rack Height	3U

Technology

RF / Microwave

Applications

Research and development, manufacturing, and communications testing