R&S FSH
Two-port measurements with the tracking generator
1145.5973.12 4.83
E-11
Tracking generator
mode
Softkeys for
transmission &
reflection calibration
Softkey for switching
between scalar/vector
meas., opt. R&S FSH-K2
0 dB reference
Softkey labeling for
tracking generator
Only models Ser. No.
100500 or later
When the tracking generator is switched on, the R&S FSH displays Track Gen Uncal. This indicates
that tracking generator measurements are uncalibrated. The level axis is in the relative unit dB. Apart
from the level values, the 0 dB reference is also displayed. This corresponds to a reference level of
-20 dBm in the spectrum analyzer mode (= nominal output level of the tracking generator with model
1145.5850.13). If an output level of 0 dBm is used with model 1145.5850.23, the 0 dB reference
corresponds to a reference level of 0 dBm.
When the tracking generator is on, measurement parameters like bandwidth or the frequency range are
selected with the appropriate keys as in the spectrum analyzer mode. When the MEAS key is pressed,
the softkey menu for the tracking generator is displayed.
Before calibration, the output level of the tracking generator (models 1145.5850.23 and 1145.5850.26
only), the frequency range you want and the appropriate reference level should be set because
calibration is only valid for the calibrated frequency range and reference. Changing these parameters
after calibration invalidates calibration.
When you press the MEAS key twice, the R&S FSH again opens the menu for selecting the various
measurements.
Setting the output level:
(model 1145.5850.23 only)
Press the TG ATT softkey in the TRACKING GEN
menu.
The submenu for selecting the output level will open.
The output level is set by selecting an attenuation
value (0 dB or 20 dB). If you select 0 dB, the output
level will be 0 dBm. If you select 20 dB, the output level
will be –20 dBm.
Using the rotary knob or the cursor keys, place the
red cursor on the attenuation value you want.
Confirm your selection with the ENTER key or the
TG ATT softkey.
