6 Input/Output
6.1 RF Source
M8920A/20B
RF Output
Port
Frequency
Range
Min Output
Power
Max Output Power
Gen 100 kHz ≤ f ≤ 6
GHz
–150 dBm without option 1EA: 3 dBm
with option 1EA: 15 dBm
T/R 100 kHz ≤ f ≤ 6
GHz
–150 dBm T/R port high power attenuator On: -15
dBm
T/R port high power attenuator Off: 3
dBm
Note: This is the UI power range, which is larger than the actual specification.
6.1.6.2 Set Reference Power
Turns the power reference state to ON, sets the reference power value to the current
RF output power, maintains this power at the RF output, and sets the displayed
power to 0.00 dB. All subsequent RF power values entered under Source,
Amplitude, RF Power are interpreted as being relative to this reference power.
When you use a power reference, the signal generator outputs an RF power that is
set relative to the reference power by the value entered under Source, Amplitude,
RF Power as follows:
Output power = reference power − entered power
Where:
–
reference power equals the original RF Power entered under
Source>Amplitude>RF Power and set as the reference power
–
entered power equals a new value entered under Source>Amplitude>Amptd
Offset
In addition, the displayed power value is the same as a new value entered under
Source, Amplitude, RF Power.
NOTE
If Power Ref is ON with a reference value set, entering a value under Source,
Amplitude, RF Power and pressing Set Reference Power adds that value to the
existing Power Ref value.
If you wish to change the reference power value to a new value entered under
Source, Amplitude, RF Power, first set Power Ref to OFF, then press Set
Reference Power.
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Short Range Comms & IoT Mode User's &Programmer's Reference 1928
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