Rohde & Schwarz ESVD Test Receiver 20 MHz – 2050 MHz

• Description
• Features
• Specifications

Description

Test Receiver ESVD for digital mobile radio networks is a triple-conversion heterodyne receiver covering the frequency range from 20 to 1000 (2050) MHz

Features

• RF attenuator switchable in 10-dB
• Steps in the range 0 to 120 dB
• One pre-selector with fixed tuning and five tracking pre-selectors, option ESVD-B2 with four additional filters with fixed tuning
• Pre-amplifier with wide dynamic range, can be switched between pre-selector and 1^st mixer
• Crystal-stabilized synthesizer as 1st LO, variable in 100-Hz steps, sweep mode for fast frequency scans; frequency accuracy complying with GSM recommendations
• High-level mixer ensuring high isolation of 1^st LO for converting the input frequency to the first IF (1354.7 MHz or 394.7 MHz)
• High-level mixers for conversion to the second (74.7 MHz) and third (10.7 MHz) IF
• IF filters (10 kHz, 120 kHz, 300 kHz and 1 MHz) in the third IF stage with group-delay optimization
• Precise 1/Q demodulator
• Highly linear envelope detector with more than 70 dB dynamic range
• Peak, overage and quasi-peak detectors operating in parallel, which enables simultaneous measurements in different weighting modes
• Peak indication with IF bandwidth correction factors for measuring broadband interference! PK/ MHz) automatically taken into account
• Measurement monitoring by means of automatic overload detection  in the relevant ESVD stages and by the permanently activated peak detector