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perro
Frequent Contributor
Username: perro
Post Number: 87
Registered: 10-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, 02 February, 2010 - 01:37 pm: | 
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Hi,
My apologies if this topic has already been "done", but...
Does anyone know the part number(s) for currently available MSF receiver chips (or reasonably priced modules)?
There seem to be a lot of references to datasheets for U4226B, UE6002 & E0C6S37, but I can't find anyone to supply these. They appear to originate from the 1990s, so maybe out of production (?).
I found a supplier of UE6002-based modules, but, unless you're going into mass production, these come to about £45, including an antenna. Way over my budget!
Maybe there's a simpler alternative.....
Regards |
joe
:::: Super User ::::
Username: joe
Post Number: 736
Registered: 05-2005
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, 02 February, 2010 - 05:27 pm: |
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Perro,
If your a student or related to an education department (or perhaps know somebody who is) you may be able to get one from here for free:
http://www.galsys.co.uk/categories/atomic-clocks.htm
Joe
Read my ramblings - www.techbites.com/joe-farr
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canonman
Frequent Contributor
Username: canonman
Post Number: 87
Registered: 02-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, 02 February, 2010 - 06:47 pm: |
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Joe, thanks for the heads-up.
As I'm a lab technician for a well-known university, I'll drop Galleon an email and see what I can blag from them 
Cheers,
Dave |
andrew
Regular Contributor
Username: andrew
Post Number: 43
Registered: 04-2005
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, 02 February, 2010 - 08:59 pm: |
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I'm interested in this too. Decoding the time and date looks to be straightforward enough - has anyone built a receiver?
btw - it's no longer rugby. It's Cumbria :-) |
canonman
Frequent Contributor
Username: canonman
Post Number: 88
Registered: 02-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, 02 February, 2010 - 09:51 pm: |
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I've built one before, using the decoding routines from John Becker's Time Machine, but with improved error checking routines that I cobbled together myself.
It's well worth finding the Time Machine source code on EPE's web site. |
zeitghost
Frequent Contributor
Username: zeitghost
Post Number: 1430
Registered: 01-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, 03 February, 2010 - 08:40 am: |
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I built the receiver portion of the clock from Wireless World in 1976 or so.
It sort of works.
When I had it hooked up to a Tek digiscope with a loooooong timebase setting you could see the propogation characteristics changing during the day.
At least, that's what I think I was seeing.
It wasn't really very good in this steel framed building, though MSF comes storming through on a HP3586 selective level meter. |
ant
Frequent Contributor
Username: ant
Post Number: 571
Registered: 05-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, 03 February, 2010 - 10:15 am: |
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Hello all,
I think there was something in Practical Wireless a year or not many ago. I'll have a look later.
Regards Ant |
perro
Frequent Contributor
Username: perro
Post Number: 88
Registered: 10-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, 03 February, 2010 - 12:33 pm: |
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Interestingly, having looked @ the link from Joe, it appears the free version for sutdents is from the same people who sell the solution for around £45 (ex-vat) for non-students 
The NPL publishes this spec' for MSF's signal: MSF_Time_Date_Code.pdf
As Andrew metnioned, the data format doesn't look too difficult to understand, but I'm not sure about how I'd build a good receiver (plus, I've never tried any kind of signal processing - YET!).
Cheers |
ant
Frequent Contributor
Username: ant
Post Number: 572
Registered: 05-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, 03 February, 2010 - 01:10 pm: |
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Hello all,
"Practical Wireless" July and September 2008. The articles didn't cover any of the decoding part, I don't remember anything subsequently but I could be wrong.
"PW" is
http://www.pwpublishing.ltd.uk/
and the author, Tony Nailer, is on
http://www.spectrumcomms.co.uk/amateur.htm
Regards Ant |
gordon
Frequent Contributor
Username: gordon
Post Number: 560
Registered: 05-2005
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, 05 February, 2010 - 03:44 pm: |
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This supplier has some interesting modules that might be of interest.
http://www.hkw-elektronik.de/shop_en/article/EM2-MSF.php |
perro
Frequent Contributor
Username: perro
Post Number: 89
Registered: 10-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, 05 February, 2010 - 04:57 pm: |
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@ Ant. Thanks for the links
@Gordon. Thanks. That's about a third of the price of the units I saw. I've just emailed them, asking for cost of shipping to the UK...
Regards |
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