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Phase Noise Test

EXTERNAL LO MODE

HA7000 Series Phase Noise Analyzers

SuperUser Account 0 2030

Holzworth Phase Noise analyzers offer a valuable External LO Mode feature. The External LO Mode function allows the user to connect two non-coherent frequency sources to the system to generate the test system LO frequencies. This feature is advantageous for testing DUTs that have a considerably better phase noise performance level than the internal, synthesized LO sources of the phase noise analyzer.

ADDITIVE MEASUREMENTS

HA7000B Series Phase Noise Analyzers

SuperUser Account 0 2065

Phase noise measurements fall under two categories: absolute and residual (additive). Where absolute phase noise measurements are typical of oscillators and and other frequency sources, residual phase noise measurements are more specific to measuring the phase noise contribution of an individual component or subsystem.

PHASE COHERENCY

HSM Series & HS9000 Series RF Synthesizers

SuperUser Account 0 3417

Holzworth Phase Noise analyzers offer a valuable External LO Mode feature. The External LO Mode function allows the user to connect two non-coherent frequency sources to the system to generate the test system LO frequencies. This feature is advantageous for testing DUTs that have a considerably better phase noise performance level than the internal, synthesized LO sources of the phase noise analyzer.

REMOVE TRIGGER JITTER

HX2410 CW to CMOS Conversion Amplifier

SuperUser Account 0 1208

The HX2410 was originally a oversized black box on a Holzworth test bench. It was designed and used by Holzworth engineering to observe the true channel-to-channel phase coherency performance (relative ch-ch stability) of the HS9000 Series Multi-Channel Synthesizer products. At one point, a customer phoned into to the Holzworth support line to discuss his observation that although the channel to channel stability was very good, it was not as good as specified. What is often overlooked is that a low frequency sinusoidal trigger signal has a slow slew rate which induces jitter into the measurement.

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Boulder, CO 80301-2400
United States

Phone: +1.303.325.3473
Fax: +1.866.259.1374

Email: sales@holzworth.com​

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