Rohde & Schwarz EMI Test ReceiverESCI - Preamplification and Preselection; Preselection

Configuration/Setup R&S ESCI
1166.6004.12 4.206 E-3
Preamplification and Preselection
In the frequency range up to 3 GHz, R&S ESCI offers a preselection with switchable preamplifier which
can be selected by the user in the analyzer mode. The preselection is always active in the receiver
mode.
The 20 dB preamplifier is available only if the preselection is switched on.
Preselection
The frequency range 9 kHz to 3 GHz is distributed over eleven filter bands.
Two fixed-tuned filters are used up to 2 MHz, eight tracking passband and high-pass filters from 2 MHz
to 2000 MHz and a fixed-tuned high-pass filter above 2 GHz.
The filters are switched by a relay at 150 kHz and by PIN-diode switches above 150 kHz.
LP 150 kHz
BP 150 kHz...2 MHz
BP 2...8 MHz
BP 8...30 MHz
BP 30...70 MHz
BP 70...150 MHz
BP 150...300 MHz
BP 300 ...600 MHz
HP 2000 MHz
Preamplifier
9 kHz...3 GHz
9 kHz...3 GHz
BP 600 ...1000 MHz
BP 1000...2000 MHz
Fig. 4-21 Preselection and preamplifier