On Saturday, March 26, 2016 09:30:30 PM Rob Sherwood. wrote: > You cannot add the directivity and gain. Doesn't work that way. Rob, NC0B. > > Sent from my iPad Minicircuits would disagree with that and its their amplifier.
Bruce > > > On Mar 26, 2016, at 2:00 PM, "jimlux" <jim...@earthlink.net> 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 -- time-nuts@febo.com > > 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/ODExMjI6MTg2NjQ0MTI4Mjpyb > > 2JAbmMwYi5jb206ZGVsaXZlcmVk > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the > instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.