Recommendations for 100 MHz low phase noise OCXOs on the secondary market? - Page 1
Forum section: electronics / testgear

author: matthuszagh
author_rank: Frequent Contributor
timestamp: November 21, 2023, 11:50:34 pm
content: Has anyone found any particularly good deals for low phase noise 100 MHz OCXOs that find their way into the secondary market? There seem to be quite a lot of options for 10 MHz OCXOs, but much less for 100 MHz.The Wenzel 500-06769 are commonly found on ebay. The prices are good and the performance is decent (PN measurement here:http://www.ke5fx.com/Wenzel_500_06769_PN.png). I was hoping for something a little better, and would be willing to pay a bit more, but if there's nothing in that category I may pick up a couple of 500-06769.

author: hpw
author_rank: Frequent Contributor
timestamp: November 22, 2023, 08:51:32 am
content: May look athttps://kvg-gmbh.de/en/product/o-22-elpn-vhf/or for any similar...

author: eleguy
author_rank: Regular Contributor
timestamp: November 22, 2023, 11:24:21 am
content: OS400-1006-012 from the RFX claims to have -150 dBc/Hz (100Hz) but maybe that is bit pricey??

author: matthuszagh
author_rank: Frequent Contributor
timestamp: November 22, 2023, 06:33:50 pm
content: Quote from: hpw on November 22, 2023, 08:51:32 amThe performance on that looks great, though I expect it won't be cheap.

author: matthuszagh
author_rank: Frequent Contributor
timestamp: November 22, 2023, 06:35:09 pm
content: Quote from: eleguy on November 22, 2023, 11:24:21 amThe price is ok, but that -150 dBc/Hz @ 100 Hz is for the 10 MHz version. I didn't see any specs for the 100 MHz unit, but I may inquire. I'd have to boost the output level too.

author: rfclown
author_rank: Frequent Contributor
timestamp: November 22, 2023, 07:49:54 pm
content: I recently bought something on eBay, but can't find a datasheet for it. eBay sales description said, "-154dBc/Hz@2KHz", but I haven't measured PN on it yet. I posted something asking if anyone else knew about it, and have had no replies.https://www.eevblog.com/forum/projects/valpey-fisher-vft22h-100-00mhz-ocxo-oscillator-output-waveform/msg5157219/#msg5157219

author: jrd
author_rank: Newbie
timestamp: November 25, 2023, 06:12:15 pm
content: Complete solution on a single board. Can also be GPS Disciplined. Microsemi SSM-2000/2650https://www.microsemi.com/product-directory/embedded-clocks-frequency-references/4013-ocxo-docxo-source-modules

author: matthuszagh
author_rank: Frequent Contributor
timestamp: November 25, 2023, 07:19:00 pm
content: Quote from: jrd on November 25, 2023, 06:12:15 pmThe PPS or 10 MHz disciplining is a nice feature, but the phase noise is actually marginally worse than the Wenzel units posted above, which is mostly what I care about here. I didn’t see a price, but given that it’s a new microsemi product with disciplining capability, I expect it’s quite a bit more expensive than the second hand wenzel units.

author: Gerhard_dk4xp
author_rank: Frequent Contributor
timestamp: November 26, 2023, 11:13:40 pm
content: <https://www.digikey.de/de/products/filter/oszillatoren/172?s=N4IgjCBcoExgrABiqAxlAZgQwDYGcBTAGhAHsoBtcRRAAgFkAJALxAF0SAHAFyhAFUAdgEtuAeQz0CWPAFcATgRABfZSRiUQBVHlox4MDW2VA>Ah, I wanted to write "always available" as I got one on Fridaymorning with 2 days delivery time, but no more now it seems.for abt. €100 new.I asked ECS for the phase noise of the 100 MHz units and I wasgiven the .pdf without NDA.Still a better deal than my 5 & 10 MHz recovered Chinese Morion MV89As.Gerhard DK4XP

author: testpoint1
author_rank: Frequent Contributor
timestamp: January 23, 2024, 01:23:46 pm
content: Hi, I just use the new KVG O.70 design a small OCXO box and PCB, the test result show -109 dB/Hz (10Hz), -132 dB/Hz (100Hz), if more than 100Hz, the noise floor is low than my reference, I can not test/verify it, but I think official chart is correct (please check the attached PDF file).I also have another KVG O-40, if you need the O.70, I can sell to you.