Re: Low RF signal on CRO ?
Input impedance of the oscilloscope and it's sensitivity is not the cause you could't get propper waveform. Check the frequency of the oscillator and compare it with the maximum frequency that oscilloscope can display. Correct waveform is shown if max. frequency of oscilloscope is at least 5-10 times higher than observed frequency. If this ratio is smaller you will see kind of filtered signal, sine signal, sine signal with reduced amplitude or nothing. But firs make shure your oscillator is oscillating.