Re: [time-nuts] Racal Dana 1992 universal counter

I have used the Prologix USB GPIB device with mine. On 1/22/2015 6:14 AM, christophena...@virgilio.it wrote: Hello everybody, i am looking for an interface pc card for a Racal-Dana Model 1992 Nanosecond Universal Counter Timer 1.3 GHz.Please could someone give me some suggestions about a

Re: [time-nuts] Racal Dana 1992 universal counter

Hi Back a very long time ago HP came up with a “universal” interface standard to talk to instruments. It turned into HPIB. After a bit of time, the standard evolved a little and other manufacturers picked up on it. It then became standardized as GPIB. Since the mid 1980’s, it’s been a pretty

Re: [time-nuts] Ublox 6T receiver, noisy PPS.

Dan, I echo what Azelio is saying. During the time when you are evaluating a GPS receiver it is important to collect as much data as possible, just in case you need to go back and correlate unusual events. I tend to turn on all possible binary messages and collect tens or hundreds of MB. You

[time-nuts] Racal Dana 1992 universal counter

Hello everybody, i am looking for an interface pc card for a Racal-Dana Model 1992 Nanosecond Universal Counter Timer 1.3 GHz.Please could someone give me some suggestions about a card that might suite this counter? I was told that a GIPB-USB interface controller should work (for instance

Re: [time-nuts] Racal Dana 1992 universal counter

I have the following instruments on my GPIB bus: Tektronix 2712 spectrum analyzer HP 3586b selective voltmeter Racal Dana 1992 counter Advantest U3641 specturm analyzer (currently inop/offline) I am using a 64 bit Fedora Linux and a PCI card to run this 50 year old protocol.

Re: [time-nuts] Ublox 6T receiver, noisy PPS.

OK, my opinion is that the GPS was not in position hold mode during the noisy period. Maybe due to an internal error or whatever, the GPS quitted the position hold mode. Try to add to the software the ability to log the GPS actual status so that if this error will return you are able to see what

Re: [time-nuts] Can one update firmware of Stanford Research Systems SR620 time interval counter?

I heard back from SRS and 1.48 is the current f/w rev level for the SR 620. List -- we're still tracking down the root cause of the strange response Dave is seeing from his *IDN? command. There was some questionable usage of ibwrt() and ibrd() and atof() in his test program as well as possible

Re: [time-nuts] Oscilloquartz 2200 Clock / B-5400 Oscillator

Hello, I have just uploaded to Didier Juges website the manual for the Oscilloquartz 2200 with clock option 2205, complete with schematics. Best regards, Jean-Louis On 21/01/2015 13:43, Tom Van Baak wrote: Hi Adrian, I have a working Oscilloquartz B-5400. A copy of the data sheet is at:

Re: [time-nuts] Racal Dana 1992 universal counter

Hello Chris, I have several 1992 instruments. Tried using eBay junk to do GPIB, but never got beyond HyperTerminal messages. It turns out that some of those counter/timers were for military use, and that military GPIB is different. There is a jumper on some instruments that lets you select

[time-nuts] R: Re: Racal Dana 1992 universal counter

I' ve used for a while a National Instruments RS232-GPIB converter with my two 1992s using the military language. I wrote my programs myself in QuickBasic under MS-DOS on a laptop. The whole thing worked quite well. Indeed I had a vague info that the counter could be switched to standard GPIB

Re: [time-nuts] R: Re: Racal Dana 1992 universal counter

Off topic somewhat, but an interesting project . http://www.dalton.ax/hpdisk/ -=Bryan=- Date: Thu, 22 Jan 2015 23:06:53 +0100 From: iov...@inwind.it To: time-nuts@febo.com Subject: [time-nuts] R: Re: Racal Dana 1992 universal counter I' ve used for a while a National Instruments

[time-nuts] GPS leap second pending (TBolt/Heather)

Nope, it's not an error or a problem. That column of data is showing a decode of the 16 status bits that the Tbolt is providing.The Trimble docs say that bit is a Leap Pending bit, so that is what Heather displays. It would be wrong to try and mask/adjust the report of the receiver's

Re: [time-nuts] GPS leap second pending (TBolt/Heather)

Re: Note that this is not a GPS problem, nor a Trimble problem. It's just a problem with user written software. I agree with Mark's comment. His software makes no attempt to interpret or correct the information put out by the Thunderbolt, it simply reports it. My Thunderbolt Monitor does the same

[time-nuts] GPS leap second pending (TBolt/Heather)

I was just sent a nice TBolt / Heather.exe screenshot from alert time-nuts reader Steven Reyer showing LEAP PENDING!. The good news is that, yes, there will be another leap second (in June). The bad news is that, no, there is not a leap second at the end of this month (January) nor at the end

[time-nuts] GPS leap second pending (HP/SmartClock)

And not to be left out of the pre-leap second party, those of you with HP/Symmetricom SmartClock's can also have fun. That would include the 58503-series TF standards as well as most of the Z38-series. Send these commands ASAP and (surprise) see what you get: *cls :ptim:leap:acc?

Re: [time-nuts] Racal Dana 1992 universal counter

I forgot to mention -- the 1992 has a jumper that selects between vanilla GPIB and a special Air Force ATE standard. Mine came with the Air Force setting. -- Chuck Forsberg WA7KGX c...@omen.com www.omen.com Developer of Industrial ZMODEM(Tm) for Embedded Applications Omen Technology

Re: [time-nuts] Racal Dana 1992 universal counter

Did you notice the message in this email list about an Arduino based GPIB interface? The advantage is the cost which could be under $10 and that many of us already have the parts. The disadvantage is you have to assemble it yourself and it works for only one instrument on the bus at a time. If