The Rohde & Schwarz ESH is a multifunction test receiver engineered for field strength measurement, selective RF analysis, and automated test system integration. It demodulates AM, double sideband, single-sideband, pulse modulated, and FM signals while detecting interference across its operating band. The instrument delivers average, peak, and quasi-peak indications traceable to CISPR16 and VDE0876 standards, with programmable measurement times for time-dependent signal characterization.
Technical Specifications
ESH 3 Test Receiver
• Frequency range: 9 kHz to 30 MHz
• Sensitivity: −30 dBµV to +137 dBµV
• IF bandwidths: 0.2 kHz, 0.5 kHz, 2.4 kHz, 10 kHz (four selectable)
• Attenuator range: 110 dB
• Gain measurement range: 57 dB
• IF output: 75 MHz broadband for panoramic display or spectrum analyzer connection
• Measurement modes: Low-noise or low-distortion operation
• Modulation analysis: Frequency offset, frequency deviation, modulation depth
• Automatic linearity testing distinguishes device nonlinearity from test item nonlinearity
ESH3-Z6 Single-Line V-Network
• Frequency range: 100 kHz to 200 MHz
• Simulated impedance: 5 µH || 50 Ω
• Continuous current: Up to 100 A
• Surge current: Up to 500 A (maximum 30 seconds)
• Standards: CISPR 25/EN 55025, DEF-STAN 59-411, DO-160; alternative for MIL-STD-461 on specified platforms
• Construction: Air-core inductors with screw terminals and protective plastic covers
ESH3-Z5 Two-Line V-Network (LISN)
• Frequency range: 9 kHz to 30 MHz
• Load impedance: 50 µH + 5 Ω shunted by 50 Ω
• Continuous current: 2 × 10 A
• Maximum short-time current: 2 × 16 A (30 minutes)
• Maximum AC supply: 250 V rms at 63 Hz
• Standards: VDE0876, CISPR16-1
• Features artificial hand and PE network simulation
– Key Features
• Excellent receiver selectivity for accurate measurement amid large level differences and multiple simultaneous signals
• Digital level indication with selectable units
• Air-core inductor construction in coupling networks for low-impedance connections
• Broadband IF output for external panoramic display integration
– Typical Applications
• EMC pre-compliance and radiated/conducted emissions testing
• Disturbance voltage measurement in automotive and aerospace power supplies
• AC-powered load interference characterization
• Signal demodulation and modulation parameter extraction
– Compatibility & Integration
The ESH3 integrates with the Spectrum Monitor EZM for panoramic display operation and functions as a system unit within automated measurement environments.
