R&S FSH series User Manual

99
E-02
The calibration for the transmission measurement
is not lost if the start, stop frequency, the center
frequency and the span are subsequently changed
within the calibrated frequency domain. In this
case, the R&S FSH interpolates the correction data
between the reference points of the calibration. In
this case, the R&S FSH displays (Approx) at top left
and indicates the possibly increased measurement
error. If the modifi ed frequency domain lies outside
the calibrated frequency range, the calibration
becomes invalid and (UNCAL) is displayed at top
left. To restore the last valid calibration, proceed as
follows:
 Press the CALIBRATE softkey in the main menu
for the network analyzer.
 Select RESTORE CALIBRATION SETTINGS with
the rotary knob or the cursor keys (∧ or ∨).
The R&S FSH restores all instrument settings
which were used at the time of the last calibration.
The calibration is reactivated and (CAL) is
displayed at top left.
When a data record for scalar refl ection
measurement in calibrated state is saved, the R&S
FSH also discards the calibration data with the
remaining settings. This means that it is possible to
measure without fi rst having to recalibrate after the
settings have been restored.
GalaxyE_v1-10_3.indd 99GalaxyE_v1-10_3.indd 99 08.04.2009 15:21:5108.04.2009 15:21:51

R&S FSH series Specifications

General

Input Impedance	50 Ω
Display	640 x 480 pixels
Tracking generator	Optional
Interfaces	USB, LAN
Third Order Intercept (TOI)	+15 dBm typical
Input VSWR	≤1.5:1 (typical)
Input Connector	N (f)
Power Supply	100 V to 240 V
Frequency range	9 kHz to 3.6/8/13.6/20 GHz
Battery life	Approx. 4 hours (standard battery)