R&S M3SR 4100 Series, Руководство по эксплуатации, Страница: 168 / 706

M3SR Series 4100 Radio Maintenance
3.52 Operating Manual 6175.4760.02 – 01
(This softkey gets
active only if the
digital selection is
built-in)
Open a listbox and use the
knob to select the attenua-
tion of the digital selection
(option).
Press 'ENT' to confirm.
Default: 0 dB
0 dB:
The attenuator in the digital
selection is bypassed.
20 dB:
Attenuator in digital selection
is switched on. This improves
the large signal behaviour of
the receiver.
If the attenuator in the digital selection is activated, i.e.
the display shows 20 dB, the input signal will be atten-
uated by about 20 dB. This function can be used for
particularly difficult collocation situations to improve
the large-signal behaviour of the receiver.
Navigate to the subdomain Split Site. The first menu is the
Split Site 1/2 menu (see sect. 3.4.3 Menu Split Site 1/2
(3041)).
Start the calibration (see sect. 7.1.1 Synthesizer Calibra-
tion)
Switch the Rx antenna ON
or OFF. Default: OFF ON:
Rx antenna connector is ac-
tive.
OFF:
Rx/Tx antenna connector is
active.
This option is set to ON by default for R&S EK4100
Systems. When set to OFF manually, transmissions
are enabled.
ON:
Transmissions are disabled
for all waveforms.
OFF:
Transmissions enabled for all
waveforms.
Softkey Description Possible Values