Hp 53132a long term OCXO stability

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ptronix

ptronix

2 жыл бұрын

Пікірлер: 18
@ruhnet
@ruhnet 2 жыл бұрын
Excellent! Thanks for the update---very interesting. The OCXO is doing very well!
@MichaelBeeny
@MichaelBeeny 2 жыл бұрын
I did watch but my interest tails off above 20Khz at the rate of 24dB per octave!!
@ptronix
@ptronix 2 жыл бұрын
You won't have much interest left at 10 Mhz then!
@MichaelBeeny
@MichaelBeeny 2 жыл бұрын
@@ptronix No, if I can't hear it, does it really exist?
@IZ0MTW
@IZ0MTW 2 жыл бұрын
@@MichaelBeeny you’re lucky if you can still hear at 20khz! By the way if you can’t measure with one of your 5 senses doesn’t necessarily mean that it doesn’t exist if you can still reveal and measure it in another way.
@MichaelBeeny
@MichaelBeeny 2 жыл бұрын
@@IZ0MTW I can't, max at about 14k these days. Meant to be a small joke. My channel is almost 100% audio, hence the 20 khz. Ptronix was talking about RF work!! British humor, I suspect you are NOT British!
@IZ0MTW
@IZ0MTW 2 жыл бұрын
@@MichaelBeeny oh ok! In fact I’m not 😄
@IZ0MTW
@IZ0MTW 2 жыл бұрын
I’m kind of obsessed with calibration and accuracy too. 😄 sometimes too much!
@ptronix
@ptronix 2 жыл бұрын
Yes, I think mine obsession's with precision comes from my father who was a watch repairer, I used to watch him adjust a watch for best accuracy using a special machine which printed a graph of the error. By the the way the Weinshel power attenuator sounds good probably better than mine. Best wishes from Nick
@cthoadmin7458
@cthoadmin7458 2 жыл бұрын
Nice frequency counter, got to have one! Just a question, if you wanted the best accuracy wouldn’t you just have a 10MHz distribution box from the gpsdo, and tie everything in your lab to your external 10MHz ref?
@ptronix
@ptronix 2 жыл бұрын
Yes its a lovely counter and I was lucky to get it fairly cheap especially with the VHF/UHF option installed. You are right I do run everything of a gpsdo 10 MHz reference but Im a perfectionist and I wasn't happy with the OCXO that was in it, so I changed it for a better one which is superb on stability.
@MartenElectric
@MartenElectric 2 жыл бұрын
What's 5mHz between the friends :) That reminds me what said Andreas Spiess: GPSDO good enough for the girls I date :) What OCXO have you used, pretty amazing results!
@ptronix
@ptronix 2 жыл бұрын
Yes it's impressive for a fairly cheap device, it's a Morion mv89a,made in St Petersburg Russia would you believe.did a video on testing & installing it if you're interested, thanks for watching
@MartenElectric
@MartenElectric 2 жыл бұрын
@@ptronix Yes I will have a look, I thought this my be some double oven OCXO or something as it didn't really drifted in those 2 years at all. I will have to hack my Pendulum CNT-90 as it comes with standard XO which is completely unstable in current state and form. Nice to see fellow time nut having fun :)
@ptronix
@ptronix 2 жыл бұрын
@@MartenElectric yes it's probably a double oven, it's fairly big & gets bloody hot!
@MartenElectric
@MartenElectric 2 жыл бұрын
@@ptronix I did have a look at Co you've used and it's more than 120 second hand on fealbay, way too much for me, so I've bought Trimble 34310T fore more affordable £20
@ptronix
@ptronix 2 жыл бұрын
@@MartenElectric £120 that's way more than I paid! I think mine was about £25 but that was 2 & half years ago, trimble are good, they seem to be very well known & good quality, hope you like it
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