5-11 Positive Train Control (PTC) Verification, Option 721 and 722 Chapter 5 — Option Verification
5-26 PN: 10580-00324 Rev. N S412E MM
Procedure for Units with Firmware Version v1.10 and Higher
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 to an AC outlet.
2. Power on the S412E and put the instrument into PTC Analyzer mode with the Menu button.
3. Preset the S412E by pressing the Shift key, then the Preset (1) key, then the Preset button on the
touchscreen.
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 set Tx Pattern to pn9_cont_1_8000.
6. Ensure Symbol Rate is set to Half Rate
7. Press the Amplitude main menu button and set Tx Output Lvl to 0dBm.
8. Press the Frequency main menu button and set Rx/Tx Coupling to On.
9. 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.
10. Press the Frequency main menu button and set Rx Frequency to 5.5 MHz.
11. Record the EVM value in Table A-35, “Units with Firmware Version 1.10 and Higher, Options 721 and
722 PTC Verification” on page A-23, and verify the value is within specification.
12. Repeat Step 10 through Step 11 for the other Frequencies listed in Table A-35.
13. Press the Setup main menu button and set Symbol rate Full Rate.
14. Repeat Step 10 through Step 11 for all Frequencies listed in Table A-35
.
15. When finished press the Turn Sig-Gen OFF button to turn off the signal generator.
Note Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
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