Anritsu S412E Maintenance Manual page 48

5-3 GPS Verification, Option 31
16. Press the Esc key to dismiss the GPS INFO dialog box.
17. Touch the GPS On/Off submenu button to turn GPS feature off.
18. Remove the adapter and terminator from the GPS connector of the S412E.
19. Connect the 2000-1528-R GPS Antenna to the GPS connector of the S412E.
20. Touch the GPS On/Off submenu button to turn GPS feature on.
When GPS is first turned on, a red GPS icon will appear at the top of the display. When the GPS
receiver has tracked at least three satellites, the GPS icon will change to green. Latitude and
Note
Longitude information is displayed in the white bar on top of the display. Acquiring satellites may
take as long as three minutes.
21. Verify that GPS icon does turn green, which indicates that the GPS receiver of the S412E can acquire
satellite signals.
Spectrum Analyzer Frequency Accuracy with GPS On
The following test is used to verify the frequency accuracy of the spectrum analyzer with GPS On for the
S412E.
Ensure that the Anritsu GPS Antenna is in a direct line-of-sight relationship to the GPS satellites or
Note
that the Antenna is placed outside without any obstructions.
Equipment Required
• GPS Antenna, Anritsu part number 2000-1528-R
• Vector Signal Generator, Anritsu Model MG3700A
• 10 MHz Reference Standard
• RF Coaxial Cable, Anritsu Model 15NN50-1.5C
• BNC(m) to BNC(m) Coaxial Cable, Anritsu part number 2000-1627-R
Procedure
1. Connect the BNC Coaxial Cable between the 10 MHz Reference Standard output and the 10 MHz Ref In
connector of the Anritsu MG3700A Signal Generator.
Note Do not connect the external 10 MHz Reference to the S412E.
2. Turn on both the 10 MHz Reference Standard and the Signal Generator.
3. Set the MG3700A output to 1.5 GHz CW with an RF output level of –30 dBm.
4. Connect the 15NN50-1.5C RF Coaxial Cable between the MG3700A and the RF In connector of the
S412E.
5. Press the On/Off key to turn on the S412E.
6. Press the Shift key and then the Mode (9) key. Use the rotary knob to highlight Spectrum Analyzer and
then press the Enter key to switch to Spectrum Analyzer mode.
7. Press the Shift key and then the Preset (1) key. Touch the Preset button on the touchscreen submenu to
set the instrument to the factory preset state.
Note Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize
8. Connect the GPS antenna and turn on the GPS. Wait until the Reference Source has changed to
"GPS Hi Accy" at the lower left hand corner of the S412E screen.
5-4 PN: 10580-00324 Rev. N
Chapter 5 — Option Verification
S412E MM