At 18:23 09-12-11, Javier wrote:
I think that the low-band preselector (I don't remember the model) was more oriented to increase the dynamic range for EMC testing, rather than due to a crappy harmonic response of the analyzer. It also includes a preamplifier.
Correct. 85685A, a very expensive (then and now) piece. The problem there was to limit the impulse bandwidth of the frontend, harmonic response was not a concern. In general, if you want to reliably measure harmonics with a S/A, you have to cancel the fundamental, either with a notch or low pass filter.
73 - Marco IK1ODO _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
