DESCRIPTION
The 11715A AM/FM Test Source provides very flat, wide-bandwidth, and low-distortion amplitude or frequency modulated RF signals. Designed primarily for performance tests and adjustments of the 8901A/B Modulation Analyzer and 8902A Measuring Receiver, it will also serve as a high-quality modulated test oscillator where its frequency ranges apply. The major components of the unit are a low-noise voltage-controlled oscillator (VCO), 2 digital dividers, and a double-balanced mixer. The VCO is the primary signal source, with a typical frequency range of 330 to 470MHz at the FM output. FM is produced by directly coupling the external modulation source to the VCO's tune input, providing very wide bandwidth modulation with low phase shift. This design also ensures very little incidental AM.

Refurbished

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  Signal Analyzers

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