Tetra Evm Verification, Option 581 And 582 - Anritsu S412E Maintenance Manual

Chapter 5 — Option Verification
5-9

TETRA EVM Verification, Option 581 and 582

The following test is used to verify EVM of the signal generator on the S412E. This test requires the TETRA
options to be installed:
Equipment Required
• RF coaxial cable, Anritsu Model 15NN50-1.5C
• AC Power Adapter, Anritsu part number 40-187-R
Procedure
1. Connect the AC Power Adapter (Anritsu part number 40-187-R) to the S412E and then plug the power
cord of the AC Power Adapter into an AC outlet.
2. Power on the S412E and put the instrument into TETRA Analyzer mode with the Menu button.
3. Preset the S412E by pressing the Shift key, then the Preset (1) key, and then the Preset button on the
touchscreen.
Note Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
4. Connect the RF cable between the Signal Generator Out and RF In connectors of the LMR Master.
5. Press the Setup main menu button and ensure the Tx Pattern is set to tetra_bs_idle_unallocPCH.
6. Press the Amplitude main menu button and set Tx Output Lvl to 0 dBm.
7. Press the Frequency main menu button and set Rx/Tx Coupling to On.
8. In the lower right-hand corner of the touchscreen press the Turn Sig-Gen ON button to turn the signal
generator on. The button will now appear as Turn Sig-Gen OFF to allow the signal generator to be
turned off when the procedure is completed.
9. Press the Frequency main menu button and set Rx Frequency to 5.5 MHz.
10. Record the EVM value in
for TETRA" on page
11. Repeat Step 9 through
12. When finished press the Turn Sig-Gen OFF button to turn off the signal generator.
S412E MM
Table A-32, "Options 581 and 582, Signal Generator EVM Verification
A-22, and verify the value is within specification.
Step 10 for the other Frequencies listed in
PN: 10580-00324 Rev. N
5-9 TETRA EVM Verification, Option 581 and 582
Table A-32.
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