Author Topic: Recommendations for 100 MHz low phase noise OCXOs on the secondary market?  (Read 2933 times)

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Offline matthuszaghTopic starter

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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.
 

Offline hpw

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Re: Recommendations for 100 MHz low phase noise OCXOs on the secondary market?
« Reply #1 on: November 22, 2023, 08:51:32 am »

May look at https://kvg-gmbh.de/en/product/o-22-elpn-vhf/ or for any similar...
 

Offline eleguy

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Re: Recommendations for 100 MHz low phase noise OCXOs on the secondary market?
« Reply #2 on: November 22, 2023, 11:24:21 am »
OS400-1006-012 from the RFX claims to have -150 dBc/Hz (100Hz) but maybe that is bit pricey??
 

Offline matthuszaghTopic starter

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Re: Recommendations for 100 MHz low phase noise OCXOs on the secondary market?
« Reply #3 on: November 22, 2023, 06:33:50 pm »

May look at https://kvg-gmbh.de/en/product/o-22-elpn-vhf/ or for any similar...

The performance on that looks great, though I expect it won't be cheap.
 

Offline matthuszaghTopic starter

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Re: Recommendations for 100 MHz low phase noise OCXOs on the secondary market?
« Reply #4 on: November 22, 2023, 06:35:09 pm »
OS400-1006-012 from the RFX claims to have -150 dBc/Hz (100Hz) but maybe that is bit pricey??

The 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.
 

Offline rfclown

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Re: Recommendations for 100 MHz low phase noise OCXOs on the secondary market?
« Reply #5 on: November 22, 2023, 07:49:54 pm »
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
 

Offline jrd

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Re: Recommendations for 100 MHz low phase noise OCXOs on the secondary market?
« Reply #6 on: November 25, 2023, 06:12:15 pm »
Complete solution on a single board.  Can also be GPS Disciplined. Microsemi SSM-2000/2650 https://www.microsemi.com/product-directory/embedded-clocks-frequency-references/4013-ocxo-docxo-source-modules
 

Offline matthuszaghTopic starter

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Re: Recommendations for 100 MHz low phase noise OCXOs on the secondary market?
« Reply #7 on: November 25, 2023, 07:19:00 pm »
Complete solution on a single board.  Can also be GPS Disciplined. Microsemi SSM-2000/2650 https://www.microsemi.com/product-directory/embedded-clocks-frequency-references/4013-ocxo-docxo-source-modules

The 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.
 

Offline Gerhard_dk4xp

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Re: Recommendations for 100 MHz low phase noise OCXOs on the secondary market?
« Reply #8 on: November 26, 2023, 11:13:40 pm »
<       https://www.digikey.de/de/products/filter/oszillatoren/172?s=N4IgjCBcoExgrABiqAxlAZgQwDYGcBTAGhAHsoBtcRRAAgFkAJALxAF0SAHAFyhAFUAdgEtuAeQz0CWPAFcATgRABfZSRiUQBVHlox4MDW2VA          >

Ah, I wanted to write "always available" as I got one on Friday
morning 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 was
given the .pdf without NDA.
Still a better deal than my 5 & 10 MHz recovered Chinese Morion MV89As.

Gerhard    DK4XP
« Last Edit: November 26, 2023, 11:17:39 pm by Gerhard_dk4xp »
 

Offline testpoint1

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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.

« Last Edit: January 23, 2024, 01:26:31 pm by testpoint1 »
 


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