7.
After the PM5B warms up and the temperature stabilizes, press
zero
on the
front
panel.
8.
Set the Internal Calibration Switch on the rear panel to
1 mW
and read the
meter
at
1.000 ± .050
(allow meter to settle before and after setting switch
. This verifies
the N1913PM5B is functioning correctly
).
9.
Turn off the Internal Calibration Switch (OFF/EXT).
Operation
Check
Example
Remote or 2 mW Range
10
.
Connect the sensor to the DUT, an SGX or VNAX set to 110 GHz frequency, and
power level at 0 dBm (1.00 mW).
11
.
Set
C
alibration Factor Switch (dB) on PM5B front panel to
00.2
for WR10 band.
12.
Ensure DUT power is off and the meter reading is stable. Press the PM5B front
panel "Zero" button
.
13. Turn on RF and measure the power set on the source. Measure 1.000 mW ± your
accuracy in settling the power level, and ± 0.050 mW estimated accuracy.
Measurement
Example
WR10 Sensor with pre-installed WR10 Section, 110 GHz, 1 mW (0 dBm)
1
4
.
Connect
a WR6.5 or WR8.0 taper to the WR10 sensor
.
Do not remove the WR10
section!
Measurement
Example
WR6.5 or WR8.0 Taper, 110
GHz, 1 mW (0 dBm)
Figure
5
Sensor Head, Waveguide, and Taper
Sensor Head
Attached to a
1-inch WR10 straight
waveguide and a
1-inch waveguide
taper.
1-Inch WR10
Straight Waveguide
Waveguide a
ttached
to
protect the flange.
1-Inch Waveguide Taper
Many standard tapers are
available from VDI (not included
with meter; may be purchased
separately) for measurements in
bands above WR10.
Copper Flange
Nickel-plated; tapped holes are easily stripped. Keep waveguide in place
as shown.
Do not over-tighten screws
.
8
Keysight N1913PM5B Product Note
