Pdh Transmit/Receive Jitter Amplitude Accuracy; Specifications; Description; Equipment Required - HP 37718A Installation And Verification Manual

Performance Tests

PDH Transmit/Receive Jitter Amplitude Accuracy

PDH Transmit/Receive Jitter Amplitude Accuracy
Specifications
Please refer to the PDH Tx/Rx Jitter Specifications given in the Specifications
document provided.

Description

The HP 37718A Transmitter Unbalanced PDH Output is looped to the PDH Input
and the signal is also monitored on the Spectrum Analyzer. The HP 37718A Jitter
modulation frequency is set to a Jitter Amplitude/Frequency check point for the
selected Bit Rate and the Spectrum Analyzer set to observe the displayed spectrum
centered at this bit rate. The HP 37718A jitter Modulation amplitude is adjusted to
the level at which a Bessel Null is expected, then fine-tuned to null the carrier. The
jitter Amplitude (UI pk-pk) displayed on the HP 37718A Transmitter and Receiver
are checked to ensure they meet specified limits. The test is repeated for various
Jitter Amplitude/Frequency points for each Bit Rate.

Equipment Required

Spectrum Analyzer
Oscilloscope
Ω Ω
75 /50 Matching Pad
Ω
75 Power Splitter
Synthesizer
Ω
75 Termination
Blocking Capacitor
: HP 8560E
: HP 54520A
: HP 11825B
: SUHNER 4901.02A
: HP 3335B Opt 001
: HP 15522-80010
: HP 10240B
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