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A survey of the third order intermodulation performance of individual crystal units from commercial 10.7 MHz filters is presented. The intermodulation distortion is found to vary significantly with drive levels in the range 0 dBm to −60 dBm.
Horton, W.H., Smythe, R.C.: `Experimental investigation of intermodulation in monolithic crystal filters', Proceedings of 27th annual frequency control symposium, 1973, p. 243.
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Malinowski, S., Smith, C.: `Intermodulation in crystal filters', Proceedings of 26th annual frequency control symposium, 1972, p. 180–186.