I don't understand the distinction being made here. I understand that a sensitive preamplifier is more easily saturated than one with lower gain or noise figure, but I don't understand why other things equal a Mini-Circuit preamp would be more prone to saturation than a MITEQ. Please explain.
---------- >From: "Brent DeWitt" <[email protected]> >To: "Robert Macy" <[email protected]>, "Ken Javor" <[email protected]>, <[email protected]>, <[email protected]> >Subject: RE: High Frequency Pre-amp >Date: Fri, Dec 21, 2001, 8:34 PM > > Robert brings up a very good point. It is the main difference between a $4 > ERA monolithic amp from MiniCircuits and a packaged $1200 Miteq amp. While > saying that, I think MiniCircuits is a great company with a range of > products that are well characterized and worth every penny. > > Regards, > > Brent DeWitt > > -----Original Message----- > From: [email protected] > [mailto:[email protected]]On Behalf Of Robert Macy > Sent: Friday, December 21, 2001 1:09 PM > To: Ken Javor; [email protected]; [email protected] > Subject: Re: High Frequency Pre-amp > > > > Just a reminder....always make certain that no signal gets in to "saturate", > or even start to overdrive, your amplifier at frequencies you're not looking > at. > > - Robert - > > Robert A. Macy, PE [email protected] > 408 286 3985 fx 408 297 9121 > AJM International Electronics Consultants > 619 North First St, San Jose, CA 95112 > > > -----Original Message----- > From: Ken Javor <[email protected]> > To: [email protected] <[email protected]>; [email protected] > <[email protected]> > Date: Friday, December 21, 2001 11:42 AM > Subject: Re: High Frequency Pre-amp > > >> >>MITEQ and Mini-Circuits come to mind for octave and multi-octave band > amps. >>HP (Agilent) makes the the 8348A covering 1 - 26.5 GHz around $14 K. The > HP >>model has a 10 dB noise figure and 25 dB gain below 20 GHz. With MITEQ you >>can pick your noise figure and gain from a large variety of models. >>Mini-Circuits is the low price leader, I saw amps up to 8 GHz but you would >>need several models and the price will still likely be less than with the >>others. If you are using an HP8566 or similar model which uses harmonic >>mixing above 2 GHz then you need enough gain to push the signal above the >>degraded noise floor. >> >>---------- >>>From: [email protected] >>>To: [email protected] >>>Subject: High Frequency Pre-amp >>>Date: Fri, Dec 21, 2001, 10:16 AM >>> >> >>> >>> This question may have recently posted but I'm not able to search the >>> archives so I'll >>> ask again. >>> >>> We have an immediate need for a pre-amp above 1000 MHz. Would you be so >>> kind >>> as to let me know what brands/models and frequency range you are using. > Any >>> pro/con >>> insights would be welcome as well. Please contact me on or off-line. >>> >>> Thanks, >>> Bob Heller >>> 3M Product Safety, 76-1-01 >>> St. Paul, MN 55107-1208 >>> Tel: 651- 778-6336 >>> Fax: 651-778-6252 >>> >>> >>> ------------------------------------------- >>> This message is from the IEEE EMC Society Product Safety >>> Technical Committee emc-pstc discussion list. >>> >>> Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ >>> >>> To cancel your subscription, send mail to: >>> [email protected] >>> with the single line: >>> unsubscribe emc-pstc >>> >>> For help, send mail to the list administrators: >>> Michael Garretson: [email protected] >>> Dave Heald [email protected] >>> >>> For policy questions, send mail to: >>> Richard Nute: [email protected] >>> Jim Bacher: [email protected] >>> >>> All emc-pstc postings are archived and searchable on the web at: >>> No longer online until our new server is brought online and the old >>> messages are imported into the new server. >>> >> > > > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Michael Garretson: [email protected] > Dave Heald [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > Jim Bacher: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > No longer online until our new server is brought online and the old > messages are imported into the new server. > ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
