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Receive clock phase adjustment, Receive data phase adjustment, Receive clock jitter – Comtech EF Data C5 User Manual

Page 74: Receive doppler/plesiochronous buffer, Buffering center

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Specifications

C5/K1/K3 Integrated Satellite Terminal System

2–40

Rev. 0

2.5.1.8

Receive Clock Phase Adjustment

The receive clock phase can be set by the operator to NORMAL or INVERTED.

2.5.1.9

Receive Data Phase Adjustment

The receive data phase can be set by the operator to NORMAL or INVERTED.

2.5.1.10

Receive Clock Jitter

The receiver has a clock jitter gain of < 2.0 dB. The absolute jitter on the output clock is
< 4% RMS of 1/data rate at 7.0 dB

E

b

/N

0

.

2.5.1.11

Receive Doppler/Plesiochronous Buffer

The receive Doppler buffer can be configured by the operator to the following modes:

1. Bypass (Buffer set to minimum depth for emulation of previous products).

2. Selectable: 32 to 262,144 bits, in 16 bit steps.

3. Selectable: 0 to 50 ms, in 1 ms steps.

4. When running framed data, the buffer will slip in configured plesiochronous steps.

2.5.1.12 Buffering

Center

The operator can set the buffer to 50%. The modem will automatically set the buffer to
50% after receive signal acquisition or a buffer overflow/underflow.

This manual is related to the following products: