343
11 GPS Modulation
Option 409 includes real time multiple-satellite and single-satellite global positioning system (GPS) signal
generation capabilities. Press
Mode > More > GPS to access the GPS menus.
• “Real Time MSGPS” on page 344 (multiple satellite GPS)
• “Real Time GPS” on page 351 (single satellite GPS)
This feature is available only in E4438C ESG Vector Signal Generators with Option 001/601 or 002/602.
NOTE A previous version of Option 409 provided only single satellite (Real Time GPS) capability.
You can upgrade to the new version of Option 409 that includes Real Time MSGPS by
downloading firmware revision C.04.97 to your E4438C ESG.
Single satellite (Real Time GPS) capability in firmware revision C.04.97 is compatible with
the single satellite capability in the previous version of Option 409. (You can use SCPI
programming code written for single satellite setups in the previous version for single
satellite setups in the new version.)
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