Sinadder - SINAD meter - inspection, test, calibrate

Typical eBay purchase, who knows what you've bought until it shows up at your door.

Document found here;
http://www.repeater-builder.com/test-...

SINAD is a measurement that can be used for any radio communication device to look at the degradation of the signal by unwanted or extraneous signals including noise and distortion. However the SINAD measurement is most widely used for measuring and specifying the sensitivity of a radio receiver.

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