08 | Keysight | N1918A Power Analysis Manager and U2000 Series USB Power Sensors - Demo Guide
Instructions
On the ESG
1. Set the instrument to default Press [Preset]
2. Set the frequency and amplitude 1. Press [Frequency] 900 > MHz
2. Press [Amplitude] 0 > dBm
3. Set GSM signal 1. Press [Mode], {Real Time TDMA}, {GSM}.
2. Toggle {GSM} to “On”.
3. Press {Data Format Framed}.
4. Turn off the Timeslot #0 1. Press {Congure Timeslot}.
2. Toggle {Timeslot} to “Off”.
5. Turn on the Timeslot #5 1. Press {Timeslot #0}, {5} and {Enter}.
2. Toggle {Timeslot} to “On”.
6. Turn on the RF signal 1. Toggle [RF On/Off] to “On”.
In the Power Panel
1. Set the frequency 1. Click Channel on the Instrument Navigator panel.
2. Set Frequency (Hz) to “900 M” on the Instrument
Properties panel
2. Set the gate 1. Click Gate on the Instrument Navigator panel.
2. Select Enable Gate to enable the gate.
3. Set gate 1 Start (s) to “2.912 m”.
4. Set Length (s) to “520 μ”.
3. Set instrument source to
external trigger
1. Click Trigger on the Instrument Navigator panel.
2. Select Cont Trig on the Instrument Properties panel.
4. Start the measurement (See Figure 8) Click on the Power Panel toolbar.
Time-Gated Average Power Measurement Demonstration
Objective
To demonstrate the capability of time-gated function to carry out average power
measurement of a 900 MHz GSM pulse using the U2000 Series power sensor.
Figure 8. Time-gated average power measurement of a GSM pulse at Timeslot #5.