You cannot add the directivity and gain. Doesn't work that way. Rob, NC0B.
Sent from my iPad > On Mar 26, 2016, at 2:00 PM, "jimlux" <[email protected]> wrote: > > > > Consulting the time-nuts hive mind here.. > > I'm looking for off the shelf connectorized amplifiers with very good reverse > isolation for doing things like intermod measurements (e.g. 2 signal > generators followed by amps/pads into a combiner) and phase noise > measurements for a digital receiver. > > 1-100 MHz kind of frequency range.. > > I've used ZFL-500LN (30dB gain, 27 dB directivity in the data sheet, which I > interpret as 57dB reverse) , ZX60-4016 (really more of a microwave amp, and > not so hot reverse wise.. 25 dB) > > I'm not particularly cost constrained, so a higher power amp (which also > reduces distortion products from the amp) followed by pads is always an > alternative. > _______________________________________________ > 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. > > > > -- > If this email is spam, report it to > https://support.onlymyemail.com/view/report_spam/ODExMjI6MTg2NjQ0MTI4Mjpyb2JAbmMwYi5jb206ZGVsaXZlcmVk > _______________________________________________ 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.
