Re: [time-nuts] Symmetricom 5115A Phase Noise Allen Deviation TestSet on ePay

Ah, to be on topic, the floopy drive would have to be the engine of a time machine that specialized in loops. Perhaps closed, time-like curves. Bill Hawkins -Original Message- From: J. L. Trantham Sent: Tuesday, April 06, 2010 10:17 PM BTW, how 'floopy' does a drive have to be to be

[time-nuts] periodic jitter , frequency offset in phase lock LeCroy SDA 5000 vs Tektronix AFG 3252

Hi all; I did a little experiment. It comprised a Tektronix Arbitrary Function Generator AFG 3253 and a digital oscilloscope LeCroy SDA 5000. The original intent was to see the properties of the phase lock of the oscilloscope's 100 MHz external reference input. I gave a 100 MHz output of

Re: [time-nuts] Symmetricom 5115A Phase Noise Allen Deviation TestSet on ePay

BTW, I have this recently developed for another application http://w3ref.cfn.ist.utl.pt/cupido/dl/050.jpg it has all it takes to make that type of instrument with all that performance or better. (2x100ms/s 16bit ADC, 40k FPGA and USB2 interface). (both clock and triggers can come externally

Re: [time-nuts] Symmetricom 5115A Phase Noise Allen Deviation TestSet on ePay

Ah! but is it cheaper than US $15,865.00? On 8 April 2010 01:05, Luis Cupido cup...@mail.ua.pt wrote: BTW, I have this recently developed for another application http://w3ref.cfn.ist.utl.pt/cupido/dl/050.jpg it has all it takes to make that type of instrument with all that performance or

Re: [time-nuts] Symmetricom 5115A Phase Noise Allen Deviation TestSet on ePay

Luis... My wife is a great bargain hunter, and loves to come home and tell me how much money she has saved on something she just bought. I've been trying to get her to express the savings in dB$, but she just isn't going for it. Any mention of the word logarithm sends her into serious inattention

Re: [time-nuts] Symmetricom 5115A Phase Noise Allen Deviation TestSet on ePay

Tom Holmes, N8ZM wrote: Luis... My wife is a great bargain hunter, and loves to come home and tell me how much money she has saved on something she just bought. I've been trying to get her to express the savings in dB$, but she just isn't going for it. Any mention of the word logarithm sends

Re: [time-nuts] Symmetricom 5115A Phase NoiseAllen Deviation TestSet on ePay

Hi Consider the alternative of being married to a math teacher - you get a (failing) grade every time you try something like that. There's always a rounding error *somewhere* ... Bob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Tom

[time-nuts] Symmetricom 5115A Phase Noise Allen Deviation TestSet on ePay

DARN, posted this originally in the wrong thread. My wife has a very simple rule: she doesn't care what I buy as long as it's smaller than what I sell. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] FS Symmetricom timing system

The definition of diminishing return? Regards, Tom Holmes, N8ZM Tipp City, OH EM79xx -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Arthur Dent Sent: Wednesday, April 07, 2010 1:17 PM To: time-nuts@febo.com Subject: [time-nuts] FS

Re: [time-nuts] Symmetricom 5115A Phase Noise Allen Deviation TestSet on ePay

Hi I have a box. It may be full of bricks. I haven't looked inside. There are no labels or serial numbers on the outside of the box. I don't find this unusual at all. Please pay by Western Union wire transfer. You can trust me for sure Bob -Original Message- From:

[time-nuts] Don't buy that eBay quarsar...

http://arxiv.org/abs/1004.0115 -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.

Re: [time-nuts] Symmetricom 5115

Dear Nicholas, Thank you for getting this discussion back to technical aspects related our real quest for technical information. Please look in your actual documentation for the current model 5125 and confirm its actual specs. I had read some specs on the Symmetricom website but I do not

Re: [time-nuts] Don't buy that eBay quarsar...

Hi What a let down. I just about had that 100 meter dish finished Bob On Apr 7, 2010, at 5:35 PM, Poul-Henning Kamp wrote: http://arxiv.org/abs/1004.0115 -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer

[time-nuts] Paper on comparison of man-made clocks vs. astrophysical clocks...

http://arxiv.org/abs/1004.0115 ___ 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.

Re: [time-nuts] Symmetricom 5115

Thank you for getting this discussion back to technical aspects related our real quest for technical information. Please look in your actual documentation for the current model 5125 and confirm its actual specs. I had read some specs on the Symmetricom website but I do not know for which

Re: [time-nuts] Symmetricom 5115

I just took a look at the datasheets for the 5115, 5120, and 5125. . The 5115 is the base model covering through 30 MHz and without a cross-correlation capability. At 10 MHz input frequency, its spec is -133 dBc/Hz at 1 Hz offset, and -147 dBc/Hz at 100 Hz offset (not spec'd at greater

Re: [time-nuts] Symmetricom 5115

Hi So basically what I get when I buy a 5115 is a limited frequency range box that isn't quite as good as (as in 40 db worse than floor) an HP 3048. Of course I'd need to buy a cheap synthesizer to go with the 3048 if I wanted to do the any frequency stuff at the 5115 level. Bob On Apr 7,

Re: [time-nuts] Symmetricom 5115A Phase Noise Allen Deviation TestSet on ePay

Hi, I forgot to say, pretty obvious for those that know me, that I have no connection with the person selling this item. 73 Steve On 8 April 2010 09:19, Bob Camp li...@rtty.us wrote: Hi I have a box. It may be full of bricks. I haven't looked inside. There are no labels or serial numbers on