Rohde & Schwarz SMH Signal Generator opts SMG-B1

The Rohde & Schwarz SMH Signal Generator with SMG-B1 option is a precision RF signal source engineered for frequency and amplitude control across demanding test and measurement environments. The SMG-B1 option integrates an OCXO (Oven Controlled Crystal Oscillator) reference oscillator, delivering exceptional frequency stability of 0.000002/yr and enabling high-spectral-purity signal generation. This combination supports communications systems, EMC/EMS measurement, satellite IF component testing, radar, avionics, and navigation equipment applications.

– Technical Specifications

Frequency Range: 100 kHz to 2 GHz (SMH model)

Output Power: –140 dBm to +13 dBm

Frequency Resolution: 1 Hz

Frequency Switching Time: Typically 15 ms

Output Level Switching Time: Typically 25 ms

Output Impedance: 50 Ω

Spectral Purity:
• Phase noise: typically –124 dBc at 1 GHz, 20 kHz offset
• Single-sideband noise: –148 dBc/Hz to –124 dBc/Hz
• Harmonics: –30 dBc
• Non-harmonics: –70 dBc

Time Base Stability (with SMG-B1): 0.000002/yr

Output Accuracy: 1.5 dB

– Key Features

• OCXO reference oscillator for enhanced frequency accuracy and stability
• Modulation capabilities: AM, FM, phase, and pulse modulation
• RF sweep with integrated AF sweep, no level transients
• Modulation generator with 8 fixed frequencies
• GPIB interface for remote programming and ATE applications

– Interfaces

• RF output: N socket, 50 Ω
• Reference frequency: 10 MHz BNC socket (input/output)
• External modulation: BNC inputs, 100 kΩ impedance
• Internal AF signal: BNC output, adjustable level

– Compatibility & Integration

The SMG-B1 option is compatible with both SMH and SMG signal generators and is designed for automatic test equipment (ATE) integration.