); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] Picosecond Pulse Labs quoted me $1,000 for one of the NLTL comb generators a couple of years ago. They are nice parts, no question about it, and substantially better than SRD multipliers.
In quantity, they would be cheaper, since I was just asking them for a one-off price to some random guy with a credit card. However, the residual noise floor of the 11729x is still lower than its absolute spec when driven by an 8662A's 640 MHz output (see page 42 of 11729B-1). So unless you plan to use a quieter 640-MHz driver than an option-3 8662A, there seems little benefit in improving its comb generator. Likewise, the noise at the 8662A's main output still limits the floor of at least some microwave measurements with the 11729. That said, I am trying to get a price quote out of Wenzel for a 640 MHz ULN OCXO: http://www.wenzel.com/pdffiles1/Oscillators/ULN_130_to_650.pdf This is the only OTS source I can find that's substantially cleaner than the 'typical' figures quoted for the 8662A's 640-MHz output. It would sure be nice to install one of these as an an internal source in the 11729, and drive its electrical tuning line from the quadrature PLL. -- john, KE5FX > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Behalf Of Jeffrey Pawlan > Sent: Tuesday, July 10, 2007 7:11 AM > To: [EMAIL PROTECTED]; Discussion of precise time and frequency > measurement > Subject: Re: [time-nuts] Neat toys on eBay for PN measurement > > > > > On Tue, 10 Jul 2007, Grant Hodgson wrote: > > > I've been wondering if it would be possible or practical to > > replace the internal Step-Recovery Diode comb generator in the 11729B/C > > with one of the Non-Linear Transmission Line comb generators from > > Picosecond Pulse Labs. > > > Yes, it is just a matter of economics. I seem to recall them > telling me that in > small quantities (10pcs) the price was around $8000. That was > last year so maybe > the price has come down somewhat. > > > 73, > > Jeffrey Pawlan WA6KBL > > > > > _______________________________________________ > 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.