R&S FSH series - CW Signal Measurements

75
E-02
3.2 Using a Preamplifi er
The R&S FSH has an internal preamplifi er
for increasing sensitivity. Depending on the
frequency, this amplifi er has 15 dB to 20 dB gain
and increases sensitivity by 10 to 15 dB. It is fi tted
behind the RF attenuator and in front of the input
mixer.
 Press the AMPT key.
 Press the RF ATT/AMP/IMP softkey.
The R&S FSH changes to the submenu for
confi guring the pre-amplifi er. The green selection
bar displays the current setting.
 Select the desired setting in the RF
PREAMPLIFIER submenu with the rotary
knob or the cursor keys (PREAMP ON or
PREAMP OFF).
 Confi rm with ENTER or the RF ATT/AMP/IMP
softkey.
GalaxyE_v1-10_3.indd 75GalaxyE_v1-10_3.indd 75 08.04.2009 15:21:4808.04.2009 15:21:48