Hi There are things like SMA to MCX adapters that mount in a roughly BNC sized hole. They are *not* cheap from the sources I have seen. There might be another source for them though.
Bob On Mar 25, 2010, at 7:00 PM, Samuel DEMEULEMEESTER wrote: > Too expensive. A solution might be to use a TNC adapter with a > TNC(M)-to-SMA(F) adapter (see http://cpc.cx/OF). Cost only a few bucks. > > > -----Message d'origine----- > De : [email protected] [mailto:[email protected]] De la > part de David C. Partridge > Envoyé : jeudi 25 mars 2010 23:45 > À : 'Discussion of precise time and frequency measurement' > Objet : Re: [time-nuts] FW: Re: Low-Cost 6+ GHz Prescaler board for > > 3.5mm > > Dave > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Samuel DEMEULEMEESTER > Sent: 25 March 2010 21:02 > To: 'Discussion of precise time and frequency measurement' > Subject: Re: [time-nuts] FW: Re: Low-Cost 6+ GHz Prescaler board for > > BNC is definitely not an option. My "standard" connector for this project is > a TNC connector. It's rated to 8 GHz and > many adapter are available for cheap. The N connector might be an option (I > can propose the PCB with a > Type-N) but as you said, it will require another front panel. Keep in mind > that Agilent is selling this front panel for > $199 ! I think this doesn't worth that price. > > > -----Message d'origine----- > De : [email protected] [mailto:[email protected]] De la > part de Rich Stolte Envoyé : jeudi 25 mars > 2010 21:12 À : [email protected] Objet : [time-nuts] FW: Re: Low-Cost 6+ > GHz Prescaler board for > > N connector would be preferable if space would accomidate the cutout being > drilled to a larger size. If not, the front > panel from the 5 GHZ /12 GHz counter is available from Agilent. They did > not use a BNC connector past 3 > GHz and I don't think you want to either. As far as the specification > tradeoffs, I think you should try to mirror Agilent's specs as closely as > possible for their 5 GHz opton > <http://www.home.agilent.com/agilent/product.jspx?cc=US&lc=eng&nid=-53690243 > 8.536907575&pageMode=OV> > http://www.home.agilent.com/agilent/product.jspx?cc=US&lc=eng&nid=-536902438 > .536907575&pageMode=OV Anything that does not meet Agilent's spec will > cause calibration problems for anyone who wants > to send it off to a commercial calibration lab unless they are given very > specific instructions which might be hard to > do years in the future when the specs to your board have been forgotten and > mislaid. > > Pricing would depend on a few factors, not the least of which would be your > fixed cost, and how much work / cost are > involved in making the front panel connector work. I would say a range from > $250 each to $1000 each wouldn't be > unreasonable. If you hit the low end of that range, I would be interested > in talking about buying a quantity of them > from you to resell. > At the high end of that range, you can probably find a few buyers if you > work hard at marketing, but definitely count me out. > > Right now, it is also hard to find option 010 oven timebase for these > counters. I wonder if you or someone else on this > list has any insight about the possibility of retrofitting one of the older > ubiquitous oven oscillators, or possibly > even an lpro? > > _______________________________________________ > 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. > > > _______________________________________________ > 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. > > > _______________________________________________ > 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. > > > _______________________________________________ > 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. > _______________________________________________ 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.
