[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-11 Thread Jorge Gomez
Hi Norman, Contact sales at nelfc.com Regards, Jorge. On Mon, Jan 10, 2022 at 4:03 AM Norman Reitz via time-nuts < time-nuts@lists.febo.com> wrote: > Hi, everyone, > I am looking for suppliers of high-quality OCXO in 10 Mhz (sine / square) > and 25 Mhz sine wave output. I can only find changes be

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Tim S
I have had some good success working with Connor-Winfield for short run, tighter spec parts as a private individual under the sales column of "samples". Just tell them what you want to do, and be upfront about your actual quantities, and don't be in a rush - it's not good Karma leading a sales per

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Stefan Heinzmann
Am 10.01.2022 um 20:05 schrieb Attila Kinali: On Mon, 10 Jan 2022 19:19:09 +0100 Stefan Heinzmann wrote: Yet you mention phase noise specs very close to the carrier (so close that any artifacts are bound to mix into the subsonic range!), A word of caution here: Human hearing is very very sen

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Andrew Kalman
FYI, I contacted MTI a few years ago for some replacement 10MHz OCXO, and their minimum buy was 5 pcs. --Andrew Andrew E. Kalman, Ph.D. On Mon, Jan 10, 2022 at 12:46 PM Bob kb8tq wrote: > Hi > > Ok, well, the boys at Rakon / CEPE will be happy to sell you a ~

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Bob kb8tq
Hi Ok, well, the boys at Rakon / CEPE will be happy to sell you a ~ $30,000 OCXO with a lead time of about 2 years. I suspect you will have to pay at time of order unless you are a well known business …. Unlike a lot of this and that you see tossed around for specs, I’m quite sure they *do* mee

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Poul-Henning Kamp
Bob kb8tq writes: > My only concern here is that before one goes of and spends 5,10, or > 20 thousand dollars on an OCXO, [...] Bob, you are kind of missing the point here... The entire point of Audio-Homoepathy is to spend excessive amounts of money, so that you can brag about how rich

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Bob kb8tq
Hi As noted in those app notes, there is a lot more to what goes on with an ADC than a single spot noise spec would cover. Those grubby details do indeed impact what sort of signal source makes sense and how it limits system performance. Sine to square conversion is always a bit messy. It is unl

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Attila Kinali
On Mon, 10 Jan 2022 19:19:09 +0100 Stefan Heinzmann wrote: > Yet you mention phase noise specs very close to the carrier (so close > that any artifacts are bound to mix into the subsonic range!), A word of caution here: Human hearing is very very sensitive to some things. One of those is two-ton

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Lux, Jim
On 1/10/22 9:56 AM, Bob kb8tq wrote: Hi An equally important part of this: What are you driving with this OCXO and what is it’s measured noise floor at 1 Hz (or 10 Hz or what ever ….). In some cases a “crazy” OCXO is actually quieter than the device it is driving. That means that the last 5 or

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Stefan Heinzmann
Hi Norman, I was hoping for an answer that was more quantitative. We're engineers, right? For us, the question is not so much "whether?" but "how much?", and particularly "how much do I need for how much of an effect?". I am especially skeptical of your assertions because you don't seem to addre

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Bob kb8tq
Hi An equally important part of this: What are you driving with this OCXO and what is it’s measured noise floor at 1 Hz (or 10 Hz or what ever ….). In some cases a “crazy” OCXO is actually quieter than the device it is driving. That means that the last 5 or 10 db in phase noise improvement reall

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Norman Reitz via time-nuts
Hi Stefan, Bernd said it allready. If you once notice the result of a "better" clock with lower phase noise, you dont want to miss it anymore. Even if there is a lot of vodoo and pseudo-sciences in the audio sector - and audio-nuts can talk  hours about things no scientist ever heard about. But

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Mattia Rizzi
You can have a look at morion.com.ru They sell small quantities, no trade license. I think the only product that can meet the -120 dBc at 1 Hz (10 MHz carrier) is the MV336, which is expensive Il giorno lun 10 gen 2022 alle ore 10:03 Norman Reitz via time-nuts < time-nuts@lists.febo.com> ha scritt

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Lux, Jim
On 1/10/22 12:26 AM, Norman Reitz via time-nuts wrote: Hi, everyone, I am looking for suppliers of high-quality OCXO in 10 Mhz (sine / square) and 25 Mhz sine wave output. I can only find changes below my quality requirements for phase noise at Mouser or Digikey. E.g. a 10Mhz should be better t

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Stefan Heinzmann
I'm curious, too, what kind of audio application requires this level of phase noise performance, and why. Cheers Stefan Am 10.01.2022 um 12:35 schrieb Attila Kinali: On Mon, 10 Jan 2022 08:26:26 + (UTC) Norman Reitz via time-nuts wrote: I am looking for suppliers of high-quality OCXO in

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Bob kb8tq
Hi Do you need both outputs from the same part? If so it likely will cost less to synthesize the 25 MHz off of the 10 MHz on your side of things rather than have it done in the OCXO. Is a price above $5,000 each at 100 pieces reasonable to you? If not, you might need to look at your spec’s a bit

[time-nuts] Re: High precision OCXO supplier for end costomers

2022-01-10 Thread Attila Kinali
On Mon, 10 Jan 2022 08:26:26 + (UTC) Norman Reitz via time-nuts wrote: > I am looking for suppliers of high-quality OCXO in 10 Mhz (sine / square) and > 25 Mhz sine wave output. Try contacting Bernd Neubig at Axtal. He is a fellow time-nut and likely to be open to supply you with what you