Interface:
CPRI Clock Selection Internal/External.
If the unit is set as Master emulation mode, the following options are available:
Internal:
The clock for the transmitter is derived from the internal clock. The internal clock has an accuracy of +/-
3.5ppm conforming to G.812 recommendations.
External Clock Sources: 1.5MHz, 2MHz, 1.5Mbit/s, 2Mbit/s, 10MHz. For External clock connection use the unit's
SMA CLK port.
Offset:
The clock for the transmitter is derived from internal clock generator. It can change the offset while
measurements are running. Use numeric key to increase and decrease the frequency shift, up to 0.01ppm.
Frequency offset: ±50ppm with 1, 0.1, 0.01ppm resolution.
Atomic 10MHz:
The built-in Atomic Clock hardware option can provide highly stable frequency references on its
own.
Clock Source Setup
If the unit is set in slave emulation mode, the clock is recovered from the RX CPRI link.
Payload: #Z.0.1 Byte:
Sync Control Word Z.0.1 set to D16.2 or D5.6.
Pattern Setup
RXT-3900 e-Manual D07-00-111P Rev A00
Summary of Contents for RXT3900
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