2
VNA Master MS202xA MM
4.
Performance Verification
The following tests can be used to verify the performance or operation of the VNA Master.
4.1
Frequency Accuracy
The following test can be used to verify the CW frequency accuracy of the VNA Master. Measurement calibration of the
VNA is not required for this test.
Equipment Required:
•
VNA Master External Power Supply, Anritsu Part Number 40-168
•
Frequency Counter, Anritsu Model MF2412B
•
RF Coaxial Cable, Anritsu Model 15NN50-1.5C
Procedure:
1.
Connect the external power supply (Anritsu part number 40-168) to the VNA Master.
2.
Press the
On/Off
key to turn on the VNA Master.
3.
Press the
Shift
key, the
Preset
key (1), and then the
Preset
soft key to reset the instrument to the default start-
ing conditions.
4.
Press the
Measurement
key, then press the
S21 Transmission
soft key. Verify that the
Log Magnitude
soft
key is selected (there will be a red dot on the key label). If not, select the
Log Magnitude
soft key.
5.
Press the
Shift
key, then press the
Sweep
(3) key.
6.
Verify that the
RF Immunity
is set to
Normal
(the word
Normal
will be underlined on the soft key label). If not,
press the
RF Immunity
soft key to set the instrument to
Normal
.
7.
Press the
Freq/Dist
key, then press the
Start Freq
soft key.
8.
Verify that the Start Frequency is set to 2 GHz. If not, enter
2
then press the
GHz
soft key to set the Start Fre-
quency to 2 GHz.
9.
Press the
Stop Freq
soft key.
10. Using the keypad, enter
2
and press the
GHz
soft key to set the Stop Frequency to 2 GHz.
11. Connect the RF cable from the VNA Master
RF Out
test port to the
RF Input1
connector on the Frequency
Counter.
12. Turn on the Frequency Counter and press the
Preset
key.
13. Verify that Frequency Counter reading is 2 GHz, ±50 KHz.
4.2
Port Isolation
The following test can be used to verify the transmission test port isolation. Measurement calibration of the VNA Master
is required for this test.
Equipment Required:
•
50 Ohm Termination, Anritsu Model 28N50-2
•
50 Ohm Termination, Anritsu Model 28NF50-2
•
Open/Short, Anritsu Part Number 22N50
•
VNA Master External Power Supply, Anritsu Part Number 40-168
•
RF Coaxial Cable, Anritsu Model 15NN50-1.5C
Procedure:
1.
Connect the external power supply (Anritsu part number 40-168) to the VNA Master.
2.
Press the
On/Off
key to turn on the VNA Master.
NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
