Re: [time-nuts] GPS receiver testing

2012-11-01 Thread Joseph Gauthier
Hi all, I'm new here (been reading for a while, but this is my first reply) so sorry if I'm not doing this reply thing right. There is a Spirent simulator down the hall from me that I tested the output PPS on a few months ago using an Agilent 53230A (OCXO option). While I don't remember the

Re: [time-nuts] GPS receiver testing

2012-11-01 Thread John Lofgren
Thank you to all of the respondents. There is a lot of great information in the replies. Based on more interaction with our customer it's looking like we may need to send the unit(s) out to a facility that specializes in this area. Best regards, John -Original Message- From:

[time-nuts] New to list

2012-11-01 Thread Mike Harpe
Sorry if this is an FAQ... Has anything else happened with the WWVB BPSK change since the test in March? Also, I would love to correspond with anyone who has worked with the C-MAX CME-8000 boards. Thanks! I'm looking forward to participating. Mike Harpe, N4PLE Sellersburg, IN USA

Re: [time-nuts] New to list

2012-11-01 Thread paul swed
Mike Welcome to the list. There have been numbers of tests since March. Ultimately a more detailed specification was released thats been helpful in understanding the new modulation. In various threads I have mentioned what I have been doing. At the moment modifying a spectracom 8163 seems to be a

Re: [time-nuts] New to list

2012-11-01 Thread Mike Harpe
Hi! At this point I'm mostly just trying to learn about the new signal. I play around with microcontrollers and have always wanted to build a WWVB clock. I spent a good amount of time with the CME-8000 board before getting frustrated with it and putting it aside for awhile. I found out about the

Re: [time-nuts] New to list

2012-11-01 Thread Bob Camp
Hi Based on a quick look - the CME8000 isn't going to be much of a help with the new modulation. It will do ok with the old AM format. Bob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Mike Harpe Sent: Thursday, November 01, 2012

Re: [time-nuts] New to list

2012-11-01 Thread Mike Harpe
Right. I know that. I should have said that I'm going to abandon the CME-8000 solution in favor of BPSK assuming they actually implement it. Mike Harpe On Thu, Nov 1, 2012 at 1:31 PM, Bob Camp li...@rtty.us wrote: Hi Based on a quick look - the CME8000 isn't going to be much of a help with

Re: [time-nuts] New to list

2012-11-01 Thread paul swed
Bob exactly good for the am and sort of a front end but completely stops being useful at that point. But still getting from 10 uv to a 1/2V thats not all bad for a drop of glue. Paul On Thu, Nov 1, 2012 at 1:31 PM, Bob Camp li...@rtty.us wrote: Hi Based on a quick look - the CME8000 isn't

Re: [time-nuts] New to list

2012-11-01 Thread paul swed
Mike I suspect they will so hunt wwvb for the new bpsk doc it will be helpful. This ain't your old AM approach. On Thu, Nov 1, 2012 at 1:35 PM, Mike Harpe m...@mikeharpe.com wrote: Right. I know that. I should have said that I'm going to abandon the CME-8000 solution in favor of BPSK assuming

[time-nuts] More Lightsquared concerns

2012-11-01 Thread tcur...@sbcglobal.net
Check www.interferencetechnology.com, part way down the page. Sent from my HTC Inspireā„¢ 4G on ATT ___ 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

[time-nuts] Sulzer 5A 5P PSU/battery question

2012-11-01 Thread Magnus Danielson
Fellow time-nuts, Yesterday I picked up a Sulzer 5A + 5P without batteries. It is supposed to have 21 D-cell NiCd batteries, but today those are not easy to come by, so I wonder if I can either run the PSU safely without battery or if I can swap in lead-batteries. I know that some of you

Re: [time-nuts] Sulzer 5A 5P PSU/battery question

2012-11-01 Thread Tom Knox
Hi Magnus; I have looked several times for an article that explains charging perimeters for the various types of batteries on the market. So many freq standards have outdated battery technology. It would be nice to find an modern alternative battery that does not require much modification to

Re: [time-nuts] Sulzer 5A 5P PSU/battery question

2012-11-01 Thread paul swed
Magnus A rare occasion that I get to have an answer for you. I have two sulzers also and the batteries 5 years ago were an issue. I believe nimh batteries could be put in if you really need batteries. At $35 I passed that option. Plus batteries are just a pain. I think the issue you have is that

Re: [time-nuts] Sulzer 5A 5P PSU/battery question

2012-11-01 Thread paul swed
Nimh is indeed the answer to replacing nicads but they are not inexpensive. The other thing is that the energy densities have gone up over the years so you can use a smaller footprint. But you have to check the charge rates. Typically .1c for slow. I have old nicads from HP that indeed still work

Re: [time-nuts] Sulzer 5A 5P PSU/battery question

2012-11-01 Thread Attila Kinali
On Thu, 01 Nov 2012 21:51:21 +0100 Magnus Danielson mag...@rubidium.dyndns.org wrote: Yesterday I picked up a Sulzer 5A + 5P without batteries. It is supposed to have 21 D-cell NiCd batteries, but today those are not easy to come by, NiCd Batteries still exist, but have been mostly replaced

Re: [time-nuts] Sulzer 5A 5P PSU/battery question

2012-11-01 Thread Scott McGrath
Batteries Plus in the US builds nicad packs to order they have built packs for my 105 and 5065a and 5061a packs with original specification cells Sent from my iPhone On Nov 1, 2012, at 5:27 PM, Attila Kinali att...@kinali.ch wrote: On Thu, 01 Nov 2012 21:51:21 +0100 Magnus Danielson

Re: [time-nuts] Sulzer 5A 5P PSU/battery question

2012-11-01 Thread David
I have used NiMH D cells as directly replacements for NiCd D cells in devices that have slow, 0.1C rate or 14 hour, chargers without problems. It takes longer to fully charge since the NiMH cells have about twice the capacity but then they last about twice as long. The price for the MiMH cells

Re: [time-nuts] Sulzer 5A 5P PSU/battery question

2012-11-01 Thread Adrian
Hi Magnus, that should be pretty much identical to my recently acquired Racal MA259 that consists of a SA500 5 MHz oscillator and PU525 power supply / battery pack. The batteries have already been replaced by a 'battery simulator'. I haven't looked inside yet, but it consists very likely

Re: [time-nuts] Sulzer 5A 5P PSU/battery question

2012-11-01 Thread John Ackermann N8UR
Hi Magnus -- I was recently (within the last year) able to get the battery pack in my 5P power supply rebuilt by the local Batteries Plus store. It took a few weeks for them to order and obtain the cells, but they do seem to be available. John On Nov 1, 2012, at 4:51 PM, Magnus Danielson

Re: [time-nuts] Sulzer 5A 5P PSU/battery question

2012-11-01 Thread Tom Knox
Hi Magnus; I know I am stating the obvious but the batteries with no external power provides by far the lowest noise. And if that is desired NiMh have a much better discharge characteristic then NiCd. But there is something to be said for maintaining the oscillator in factory original

Re: [time-nuts] Sulzer 5A 5P PSU/battery question

2012-11-01 Thread Magnus Danielson
On 11/01/2012 10:27 PM, Attila Kinali wrote: On Thu, 01 Nov 2012 21:51:21 +0100 Magnus Danielsonmag...@rubidium.dyndns.org wrote: Yesterday I picked up a Sulzer 5A + 5P without batteries. It is supposed to have 21 D-cell NiCd batteries, but today those are not easy to come by, NiCd

Re: [time-nuts] Sulzer 5A 5P PSU/battery question

2012-11-01 Thread J. L. Trantham
I have a local shop that builds battery packs that turn out to be cheaper than Batteries Plus since shipping is not involved. You should check your local yellow pages to see if you have a 'Battery Warehouse' type store. Joe -Original Message- From: time-nuts-boun...@febo.com

Re: [time-nuts] Sulzer 5A 5P PSU/battery question

2012-11-01 Thread paul swed
Thanks for the pointer I have a pretty dirty pdf from some place the links very clean. Paul WB8TSL On Thu, Nov 1, 2012 at 7:24 PM, Magnus Danielson mag...@rubidium.dyndns.org wrote: On 11/01/2012 10:27 PM, Attila Kinali wrote: On Thu, 01 Nov 2012 21:51:21 +0100 Magnus

Re: [time-nuts] Sulzer 5A 5P PSU/battery question

2012-11-01 Thread Adrian
and here is the corresponding Racal manual: http://www.ko4bb.com/Manuals/Racal/Racal_MA2595Mc-s_Precision_Frequency_Standard.pdf Unfortunately, the schematic of the Sulzer manual is incomplete. So, the above manual might be useful. Just the oven control circuits differ a little, but the

[time-nuts] CIC GGER GPSDO

2012-11-01 Thread UTC
Does anybody know what GPS receiver software works with the CIC GGER GPSDO ( see http://www.ebay.com/itm/CIC-GGER-Equivalent-Z3815A-GPS-FREQUENCY-TIME-RECEIVER-10-MHz-/271092242613?pt=US_Ham_Radio_Receivershash=item3f1e5b58b5) ? ___ time-nuts mailing

Re: [time-nuts] CIC GGER GPSDO

2012-11-01 Thread paul swed
No idea. The fact that the gps rcvr is a fumoro most likely makes none of the software we have usable. They typically use motorola rcvrs. Its also $90 shipping. So for $180 I would spend a bit more and get a Tbolt and have some useful control software. Good luck Regards Paul. On Thu, Nov 1, 2012

Re: [time-nuts] CIC GGER GPSDO

2012-11-01 Thread Had
I don't know if this item is worth looking at or not. BUT, if you click the download link you will find a lot of very nice pics. and information which is nice to have. Had K7MLR -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of paul

Re: [time-nuts] CIC GGER GPSDO

2012-11-01 Thread Ed Palmer
Does anyone know what the story is regarding that site? There's a wealth of hard-core Time-Nut information there, but after the first level or two, all the links are dead. The main page (in Japanese) is at http://etoysbox.jp. The English link takes you to