Another key tool is the AM notch filter, which is often necessary to eliminate errors when measuring harmonics with a spectrum analyzer. Frequently, internal non-linearities create artificially high harmonic or spurious indications when the fundamental carrier is unsuppressed. By "notching" the primary frequency, reliable accuracy is ensured.
Our low-loss port on the am notch filter allows measurement forays well below -80 dBc at +- 75 kHz, which are required when conducting NRSC tests on stations with power levels of 5 kw and above.See Breaking the 80 dB barrier. For FM harmonic measurements, we offer a 175 MHz hi-pass filter to attenuate the FM band while passing harmonics. The completely shielded designs provide ultimate stop-band attenuation.
Chris Scott & Associates is a small design and consulting firm specializing in radio broadcast. A partial listing of clients and customers is available. Whether your visit to our website is professional, or is simply curious browsing, don't miss the "white" papers presented, covering related topics.
Our low-loss port on the am notch filter allows measurement forays well below -80 dBc at +- 75 kHz, which are required when conducting NRSC tests on stations with power levels of 5 kw and above.See Breaking the 80 dB barrier. For FM harmonic measurements, we offer a 175 MHz hi-pass filter to attenuate the FM band while passing harmonics. The completely shielded designs provide ultimate stop-band attenuation.
Chris Scott & Associates is a small design and consulting firm specializing in radio broadcast. A partial listing of clients and customers is available. Whether your visit to our website is professional, or is simply curious browsing, don't miss the "white" papers presented, covering related topics.
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