Data Sheet

RF Explorer User Manual page 20
by 5dBm each time. This shortcut, together with [Left] and [Right] for moving Center Frequency or Span as
described before, are very convenient to make configuration changes real-time with no need to visit the
Menu.
Included in RF Explorer Plus models is a selectable input stage with three possible signal paths:
50 RF Ω
INPUT
Attenuator
30dB
LNA
pre-amplifier
25dB
To next
RF stage
 Direct: low loss signal path to standard sensitivity, use for linear measurements up to -25dBm
 Attenuator: 30dB nominal wideband attenuator, use for linear measurement up to 0dBm
 LNA: low noise wideband preamplifier, use for linear measurements up to -40dBm. Note this option
requires more battery power than other modes. When using LNA and an antenna, it is recommended
using band pass filters to limit the wideband noise detected, otherwise degraded signal/noise
reception may limit or even cancel the benefit of the amplifier.
The selection is defined by using the Input option in the Attenuator Menu . High performance RF switches
drives signal path into the selected option instantly.