R&S ESR Series User Manual page 114

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R&S ESR
1. Set the signal analyzer to the default state by pressing the [PRESET] key.
The R&S ESR is set to its default state.
2. Select "Spectrum" mode.
3. Set the center frequency to 890 MHz, the span to 0 Hz and the resolution band-
width to 1 MHz.
a) Press the [FREQ] key and enter 890 MHz.
b) Press the [SPAN] key and enter 0 Hz or press the "Zero Span" softkey.
c) Press the [BW] key.
d) Press the "Res BW Manual" softkey and enter 1 MHz.
4. Set the reference level of the R&S ESR to 0 dBm (= level of the signal generator)
by pressing the [AMPT] key and entering 0 dBm.
5. Set the sweep time to 2 ms.
a) Press the [SWEEP] key.
b) Press the "Sweeptime Manual" softkey and enter 2 ms.
6. Use the trigger source "Video" and the trigger polarity "Pos" to trigger on the rising
edge of the burst and shift the start of burst to the center of the screen.
a) Press the [TRIG] key.
b) Press the "Trg/Gate Source" softkey and select "Video" using the arrow keys.
c) Press the "Trg/Gate Level" softkey and enter 70%.
d) Press the "Trigger Offset" softkey and enter -1 ms.
7. Configure the power measurement in zero span.
a) Press the [MEAS] key.
b) Press the "Time Domain Power" softkey to open the submenu.
c) Switch the "Limits" softkey to "On."
d) Press the "Left Limit" softkey.
e) Using the rotary knob, move the vertical line to the start of the burst.
f)
User Manual 1175.7068.02 ─ 12
The R&S ESR shows the GSM burst continuously across the display.
The R&S ESR shows a static image with the GSM burst at the start of the
trace.
The R&S ESR shows the GSM burst in the right half of the measurement dia-
gram.
Press the "Right Limit" softkey.
Quick Start
Basic Measurement Examples
111