Rohde & Schwarz NRT 1080.9506.02/.62, Operating Manual

Page: 58 / 194

CONFig Menu NRT
1080.9506.02 2.28 E-8
a) Entry of SWR limit value:
CONFig - SPEC -
SWR.ALARM - MAX SWR:
Unit: none
Preset: 3.0
IEC/IEEE command:
:SENSe<n>:SWR:LIMit 3.0
b) Entry of threshold for forward power:
CONFig - SPEC -
SWR.ALARM - THRESHOLD:
Unit: W
Preset: 100 MW
IEC/IEEE command: :
SENSe<n>:SWR:THReshold 10W
2.3.9
∆∆∆∆
KEY (Configuration of Relative Units)
The key dBm/
∆/
W can be used to select the unit of the power indication: dBm, W and relative indica-
tion. The
∆
KEY menu allows configuration of the relative indication. The relative difference can be indi-
cated in % or dB, relative to the stored reference power.
CONFig -
∆
KEY:
Either the currently measured power value ( [
∆
REF] key in manual mode) or any other value can be en-
tered as reference value (see Section 2.3.8.1).
Selection Description Available
o
/
o
Deviation of measured power from reference power in per-
cent
100
%
⋅
−
≡
ref
ref meas
P
P P
P
Always
dB Difference between measured power and reference power in
dB.
ref
meas
dB
P
P
P log 10
⋅ ≡
Always
Preset: dB
IEC/IEEE command:
:UNIT<n>:POWer:RELative:STATe ON
:UNIT<n>:POWer:RELative DB|PCT
深圳德标仪器
135-1095-0799