Product specifications

23
The Agilent U2000 Series USB power sensor works with
the N934xC HSA to provide high accuracy average power
measurement. The frequency range for power measure-
ments is from 9 kHz to 24 GHz and power levels from
-60 dBm to +20 dBm at a measurement speed of up to
1,000 readings per second in buffered mode. The N934xC
HSA provides power to the sensor and retrieves measure-
ment results over USB.
The N934xC HSA displays the measurement results and
provides pass/fail indication with user-settable upper and
lower limits. The results are displayed in dBm and W for
absolute power measurements and in dB and percentage
for relative measurements. Results can be displayed on a
fast updating meter display or on a chart of power versus
time.
In this demonstration, we use the N934xC HSA with
U2000A USB power sensor to measure the output power
of an external signal generator.
Demonstration 14
Power meter
Instructions for the
source
Keystrokes for the
source
Set 2 GHz center frequency,
amplitude -10 dBm, W-CDMA
signal
[Preset], [Freq], [2], {GHz},
[Amplitude], [-10], {dBm},
[Mode], {W-CDMA},
{Arb W-CDMA (3GPP 12-
2004}, {W-CDMA (On)},
[Mod On], [RF On]
Instructions for HSA Keystrokes for HSA
Connect the Agilent U2000A
power sensor to the N934xC
HSA via USB cable
Turn on the power meter
function (N934xC-PWM option
needed) (Figure 26)
Note: Please don’t operate
until the warning message
“Connection initialization”
disappears and model number
“U2000A” appears on the
display
[Mode], {Power Meter}
Zero and the zero type is INT
Note: “Zero calibration,
waiting…” warning message
appears
{Zero}, {Zero Type} to INT
Connect the signal generator’s
RF output to the USB power
sensor’s RF IN connector and
turn on the signal generator’s
output
Turn on the limit function.
Sound warning when power is
beyond limit value
{Return}, {Meas Setup},
{Limits}, {Limits (on)}, {Limit
Beep (On)}, {Return}, {Return}
Change the display mode from
meter to chart (Figure 27)
{Meas Disp}, {Disp Mode
(Chart)}
Figure 26. Power meter mode
Figure 27. Chart mode