Fiber Optic Products
Typical specifications for frequency discriminators include frequency accuracy within the linear bandwidth (expressed as a percent of deviation from a best-fit straight line), crossover accuracy and demodulated video bandwidth.
Frequency accuracy (commonly known as linearity) measurement is achieved using a computer-controlled RF generator, which is step incremented through the specified linear frequency range, and a digital multimeter to record the video output voltage. The result is a plot of measured output voltage, corresponding to input frequency and its deviation from a best-fit straight line using a linear regression formula.
In many instances, the demodulated video bandwidth can be approximated. This is achieved by dividing 0.35 by the measured video rise time. Alternatively, a more appropriate form of measurement is to modulate the carrier with a suitably wide baseband signal and use a spectrum analyzer to display the modulated video output. The -3 dB point of baseband signal can then be measured directly.
Since 1969, MITEQ has been customizing to our customers specific requirements. This can include new design efforts, modifications to existing designs for performance and mechanical needs, as well as additional testing and environmental screening.
Please contact Component Sales with any special requirements you may have:Tel: 631-436-7400Fax: 631-436-7430
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