FAQs from Rohde & Schwarz

SMBV100B - What does center frequency in GNSS mode stand for?

Question

What does center frequency in GNSS mode stand for?

Answer

If GNSS mode is turned on, the center frequency of the signal generator switches to 1.389225 GHz which is simply an oscillator frequency, not the actual signal frequency. Each GNNS implementation has its own offset frequency, consequently GPS L1 with offset 186.195 MHz correctly appears at 1.57542 GHz, but it’s frequency isn’t directly shown on home screen. The same applies to other standards, even if multiple ones are selected.

Center frequency in GNSS mode

Article related to SMBV100B firmware 4.70.006.33SP1 (March 2020)