10PCS LT10.7A CERAMISCHE FILTER 10.7MHz Drie-pins in-line kristaloscillator

The pictures are the frequency responses of two (the best and the worst) filters out of 10. The frequency span is 10.7Mhz +- 500kHz. None of the frequency responses of all 10 devices I received look right. The best one (the first picture) shows the bandwidth is about 400kHz but the in-band ripple is quite big (at least the center frequency is at 10.7Mhz). The worst one (the 2nd picture) shows that the filter behaves more like a notch filter that rejects 10.7MHz!!! For the selling price, what do you expect?

Für diesen Preis kann man auch keine hochwertigen Keramikfilter erwarten. Im Bastlerbereich einsetzbar.