I was just looking at a HP8566, and found that it can reach the right range, right on the hairy edge of its capability. It's specified range is to 22 GHz, but you can tell it to go up to 24 GHz stop frequency - beyond that it will ignore numeric entries, or adjust the other parameters to limit it there. So, you can say, set the center to the 23.870 GHz or so, and span up to 200 MHz (slightly more actually), for wide searching for absorption frequencies. This puts the top frequency at 23.97 GHz, without being rejected or altered. So, it's in uncharted and unspecified territory, but it does cover the desired range, without resorting to external mixers. This gives a fairly wide-band view with noise floor around -60 dBm.
It looks like you can narrow things down enough to reach -70-80 dBm, at reasonable rep rates. Ed _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
