Re: [time-nuts] Lucent RFTG-m-XO GPSDO
Peter, My UT+ works ok with common antennas, I tested it with a Trimble 28367-00 and with a INPAQ AAF-03B 5V. Both are quite old garden variety GPS antennas intended for car navigators so your problem can be in the receiver. I bought mine from fluke.l and he still have some available on his other shop: http://www.ebay.com/itm/130303889204?ssPageName=STRK:MEWAX:IT_trksid=p3984.m1438.l2649 http://www.ebay.com/itm/130303889204?ssPageName=STRK:MEWAX:IT_trksid=p3984.m1438.l2649 They are cheap enough to buy one as a spare just in case. Also you can try with another antenna anyway, because the receiver checks only that an antenna is connected (that is, the current range is right) but your antenna could became defective. Regards, Ignacio On 09/10/2011 7:52, Peter Bell wrote: On Sun, Oct 9, 2011 at 3:31 AM, k4...@aol.comk4...@aol.com wrote: Peter, do you have the software for this unit? The GPS antenna is supposed to draw apx. 20 mA at 5 volts in order for the NO GPS LED to turn off. ATT (Lucent) used the MicroPulse timing antenna (later sold and now provided by PCTE). You are correct in that Efratom used the Motorola UT+ 8 channel GPS receiver on these units. The rubidium companion box used the data from the same receiver (via an interconnect cable between the two units). Let me know if you have questions on this unit, Regards, Doug Connected by DROID on Verizon Wireless -Original message- From: Peter Bellbell.pe...@gmail.com To: time-nuts@febo.com Sent: Fri, Oct 7, 2011 14:13:31 GMT+00:00 Subject: [time-nuts] Lucent RFTG-m-XO GPSDO I have been playing with one of these units, and noticed that there has been some discussion on them before on this list, so I wondered if anyone might have any suggestions. Basically, the unit powers up correctly, but the No GPS LED never goes off - this obviously could be because it's broken or doesn't like my antenna, but with some of these telecom GPSDOs you have to manually trigger a site survey if you move them to another location. Does anyone know if this Lucent box is like that? Everything else seems to be working - once the OK light comes on the 15MHz output is enbled, the No GPS LED goes from solid to blinking if you disconnect the antenna - it just doesn't want to get GPS lock. I suppose I could pull the Oncore board (a UT+ according to the label) out of it and test that on it's own - but I thiought I would see if maybe it's a known issue first. Hi, Doug I don't have any documentation at all - just the actual box. The antenna is one that originally came with a Furuno marine GPS, but the spec looks plausible (+5V @ 40mA, Internal L1 preamp with 26dB gain - and it has worked with several other GPS units without problems. I just pulled the oncore out, and connected it up outside the box - and it doesn't work. It passes the self test with a response code of (or 8000 with the antenna disconnected / 4000 with a short on the antenna socket - so it seems the current consumption is OK) - but no matter how long you leave it it still says it's tracking 0 satellites, although it happiy generates status reports. I wonder if this UT+ version is expecially sensitive to the antenna? I remember that the oncore VP would work with pretty much anything you hooked up to it. Of course, it's equally possible that the GPS module is defective. I'm tending towards broken - I also got an RTFG-m-RB with this unit, and that has a faulty LPRO-101 in it (it's probably fixable - it looks like the FET that heats up the Rb cell had gone open circuit) - and the two units together only cost me $40 supplied on a status unkown, but likely defective basis. I should get at least $40 of entertainment out of trying to fix them :) ___ 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. ___ 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.
[time-nuts] HP5065A progress
Fellow time-nuts, I have now diagnosed the unit B A15 PSU board to such a level that I now know that the 9100-2478 transformer in the +20V to -20V switcher. If someone is sitting on a spare transformer or A15 board (with working transformer) that I could buy from you, please let me know. The rest of the unit is in good operational order, so spending time to repair the A15 board gives good bang for the buck. I have just recapped the unit A board and when testing it in unit B (which is the unit on my table right now) unit B locks up. I will go down and repair traces and re-cap unit C A15 board now. If all goes well with that, then I should be able to trim up unit C this evening. One of these days I will have to learn the craft of winding my own transformers, but right now it's not on top of my list of things to learn. Cheers, Magnus ___ 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] Lucent RFTG-m-XO GPSDO
On Sun, Oct 9, 2011 at 6:55 AM, EB4APL eb4...@cembreros.jazztel.es wrote: Peter, My UT+ works ok with common antennas, I tested it with a Trimble 28367-00 and with a INPAQ AAF-03B 5V. Both are quite old garden variety GPS antennas intended for car navigators so your problem can be in the receiver. I bought mine from fluke.l and he still have some available on his other shop: http://www.ebay.com/itm/**130303889204?ssPageName=STRK:** MEWAX:IT_trksid=p3984.m1438.**l2649http://www.ebay.com/itm/130303889204?ssPageName=STRK:MEWAX:IT_trksid=p3984.m1438.l2649 http://www.ebay.com/itm/**130303889204?ssPageName=STRK:** MEWAX:IT_trksid=p3984.m1438.**l2649http://www.ebay.com/itm/130303889204?ssPageName=STRK:MEWAX:IT_trksid=p3984.m1438.l2649 They are cheap enough to buy one as a spare just in case. Also you can try with another antenna anyway, because the receiver checks only that an antenna is connected (that is, the current range is right) but your antenna could became defective. I found one of these: http://www.frys.com/product/5342178 to be more sensitive than the egg shaped antenna from fluke.l (fluke.l is a good seller and I've bought a couple of things from him). Whether the GILSSON draws enough current is another matter - Frys claim 12 +/-1 mA. Orin. ___ 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] Lucent RFTG-m-XO GPSDO
On 10/9/2011 6:55 AM, EB4APL wrote: Peter, My UT+ works ok with common antennas, I tested it with a Trimble 28367-00 and with a INPAQ AAF-03B 5V. Both are quite old garden variety GPS antennas intended for car navigators so your problem can be in the receiver. I bought mine from fluke.l and he still have some available on his other shop: http://www.ebay.com/itm/130303889204?ssPageName=STRK:MEWAX:IT_trksid=p3984.m1438.l2649 http://www.ebay.com/itm/130303889204?ssPageName=STRK:MEWAX:IT_trksid=p3984.m1438.l2649 They are cheap enough to buy one as a spare just in case. Also you can try with another antenna anyway, because the receiver checks only that an antenna is connected (that is, the current range is right) but your antenna could became defective. Regards, Ignacio On 09/10/2011 7:52, Peter Bell wrote: On Sun, Oct 9, 2011 at 3:31 AM, k4...@aol.comk4...@aol.com wrote: Peter, do you have the software for this unit? The GPS antenna is supposed to draw apx. 20 mA at 5 volts in order for the NO GPS LED to turn off. ATT (Lucent) used the MicroPulse timing antenna (later sold and now provided by PCTE). You are correct in that Efratom used the Motorola UT+ 8 channel GPS receiver on these units. The rubidium companion box used the data from the same receiver (via an interconnect cable between the two units). Let me know if you have questions on this unit, Regards, Doug Connected by DROID on Verizon Wireless -Original message- From: Peter Bellbell.pe...@gmail.com To: time-nuts@febo.com Sent: Fri, Oct 7, 2011 14:13:31 GMT+00:00 Subject: [time-nuts] Lucent RFTG-m-XO GPSDO I have been playing with one of these units, and noticed that there has been some discussion on them before on this list, so I wondered if anyone might have any suggestions. Basically, the unit powers up correctly, but the No GPS LED never goes off - this obviously could be because it's broken or doesn't like my antenna, but with some of these telecom GPSDOs you have to manually trigger a site survey if you move them to another location. Does anyone know if this Lucent box is like that? Everything else seems to be working - once the OK light comes on the 15MHz output is enbled, the No GPS LED goes from solid to blinking if you disconnect the antenna - it just doesn't want to get GPS lock. I suppose I could pull the Oncore board (a UT+ according to the label) out of it and test that on it's own - but I thiought I would see if maybe it's a known issue first. Hi, Doug I don't have any documentation at all - just the actual box. The antenna is one that originally came with a Furuno marine GPS, but the spec looks plausible (+5V @ 40mA, Internal L1 preamp with 26dB gain - and it has worked with several other GPS units without problems. I just pulled the oncore out, and connected it up outside the box - and it doesn't work. It passes the self test with a response code of (or 8000 with the antenna disconnected / 4000 with a short on the antenna socket - so it seems the current consumption is OK) - but no matter how long you leave it it still says it's tracking 0 satellites, although it happiy generates status reports. I wonder if this UT+ version is expecially sensitive to the antenna? I remember that the oncore VP would work with pretty much anything you hooked up to it. Of course, it's equally possible that the GPS module is defective. I'm tending towards broken - I also got an RTFG-m-RB with this unit, and that has a faulty LPRO-101 in it (it's probably fixable - it looks like the FET that heats up the Rb cell had gone open circuit) - and the two units together only cost me $40 supplied on a status unkown, but likely defective basis. I should get at least $40 of entertainment out of trying to fix them :) ___ 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. ___ 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. That's the route I had to go to fix my RTFG pair. I replaced the receiver with one of a pair I purchased from *-Bay. They seem to be working. Randy, KI6WAS ___ 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] HP5065A progress
I may have that part in stock somewhere. Years ago I parted out the un-needed guts of the 5065A I'm now using to transplant a Z3801A. I likely would have saved the major parts from the boards, stripped en masse on my solder machine. If you or anyone happens to have a good picture of it, please send it to me, and I will look through my transformer buckets to see if it's still around. If so, you can have it for postage. Ed ___ 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] Lucent RFTG-m-XO GPSDO
Hi Peter, yes it sounds like the UT+ is defective if it never gets any sats. You can probably find one on eBay. Someone probably fired RF into the receiver front-end and zapped it. I think the antenna you are using should be OK. I will look for my drawings on this unit and send copies to you. And I know I have the software too, just need to find it! I have read in some of the notes here on time-nuts that people may be able to use RS232 for communicating with the RFTG units. But it was designed for RS422 and I would suggest you use RS422 for best results. I use a little RS422-4S232 converter which has worked fine for me. The early units had FRS rubidiums in them. The LPRO was used in the newer units. So, you have the more recent design. Connected by DROID on Verizon Wireless -Original message- From: Peter Bell bell.pe...@gmail.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Sun, Oct 9, 2011 05:52:25 GMT+00:00 Subject: Re: [time-nuts] Lucent RFTG-m-XO GPSDO On Sun, Oct 9, 2011 at 3:31 AM, k4...@aol.com k4...@aol.com wrote: Peter, do you have the software for this unit? The GPS antenna is supposed to draw apx. 20 mA at 5 volts in order for the NO GPS LED to turn off. ATT (Lucent) used the MicroPulse timing antenna (later sold and now provided by PCTE). You are correct in that Efratom used the Motorola UT+ 8 channel GPS receiver on these units. The rubidium companion box used the data from the same receiver (via an interconnect cable between the two units). Let me know if you have questions on this unit, Regards, Doug Connected by DROID on Verizon Wireless -Original message- From: Peter Bell bell.pe...@gmail.com To: time-nuts@febo.com Sent: Fri, Oct 7, 2011 14:13:31 GMT+00:00 Subject: [time-nuts] Lucent RFTG-m-XO GPSDO I have been playing with one of these units, and noticed that there has been some discussion on them before on this list, so I wondered if anyone might have any suggestions. Basically, the unit powers up correctly, but the No GPS LED never goes off - this obviously could be because it's broken or doesn't like my antenna, but with some of these telecom GPSDOs you have to manually trigger a site survey if you move them to another location. Does anyone know if this Lucent box is like that? Everything else seems to be working - once the OK light comes on the 15MHz output is enbled, the No GPS LED goes from solid to blinking if you disconnect the antenna - it just doesn't want to get GPS lock. I suppose I could pull the Oncore board (a UT+ according to the label) out of it and test that on it's own - but I thiought I would see if maybe it's a known issue first. Hi, Doug I don't have any documentation at all - just the actual box. The antenna is one that originally came with a Furuno marine GPS, but the spec looks plausible (+5V @ 40mA, Internal L1 preamp with 26dB gain - and it has worked with several other GPS units without problems. I just pulled the oncore out, and connected it up outside the box - and it doesn't work. It passes the self test with a response code of (or 8000 with the antenna disconnected / 4000 with a short on the antenna socket - so it seems the current consumption is OK) - but no matter how long you leave it it still says it's tracking 0 satellites, although it happiy generates status reports. I wonder if this UT+ version is expecially sensitive to the antenna? I remember that the oncore VP would work with pretty much anything you hooked up to it. Of course, it's equally possible that the GPS module is defective. I'm tending towards broken - I also got an RTFG-m-RB with this unit, and that has a faulty LPRO-101 in it (it's probably fixable - it looks like the FET that heats up the Rb cell had gone open circuit) - and the two units together only cost me $40 supplied on a status unkown, but likely defective basis. I should get at least $40 of entertainment out of trying to fix them :) ___ 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. ___ 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] HP5065A progress
On 09/10/11 17:22, Magnus Danielson wrote: Fellow time-nuts, I have now diagnosed the unit B A15 PSU board to such a level that I now know that the 9100-2478 transformer in the +20V to -20V switcher. If someone is sitting on a spare transformer or A15 board (with working transformer) that I could buy from you, please let me know. The rest of the unit is in good operational order, so spending time to repair the A15 board gives good bang for the buck. I have just recapped the unit A board and when testing it in unit B (which is the unit on my table right now) unit B locks up. I will go down and repair traces and re-cap unit C A15 board now. If all goes well with that, then I should be able to trim up unit C this evening. ... and after having done that and just a quick A3 trimming, I can conclude that the C unit is locked and running along nicely. Time to put the lids on and let it run all by itself. Cheers, Magnus ___ 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.
[time-nuts] Could someone please recommend GPIB card
Hello, I am looking for a PCI-GPIB card to use in a machine running windows XP. After looking on Ebay there are many different options at many different prices. I am not sure which would be compatible with my set up. Currently I have a ACER Laptop, with a NI PCMCIA GPIB card and I was able to locate the drivers to make it run with the TimeLab, the HP 5730B, I have a Dell dimension 2400 desktop, which runs other Ham radio software, like weak signal DSP, some Seismograph, Dataq data logging and others. This computer has a spare PCI slot and I would like to move the HPIB capabilities into this machine, so I only need to run 1 computer. Maybe someone is looking for a trade for the PCMCIA GPIB Card and cable? Thank you for the help Paul A. Cianciolo W1VLF http://www.rescueelectronics.com/ Our business computer network is powered exclusively by solar and wind power. Converting Photons to Electrons for over 20 years ___ 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] Could someone please recommend GPIB card
On 10/9/11 3:36 PM, Paul A. Cianciolo wrote: Hello, I am looking for a PCI-GPIB card to use in a machine running windows XP. After looking on Ebay there are many different options at many different prices. I am not sure which would be compatible with my set up. Currently I have a ACER Laptop, with a NI PCMCIA GPIB card and I was able to locate the drivers to make it run with the TimeLab, the HP 5730B, I have a Dell dimension 2400 desktop, which runs other Ham radio software, like weak signal DSP, some Seismograph, Dataq data logging and others. This computer has a spare PCI slot and I would like to move the HPIB capabilities into this machine, so I only need to run 1 computer. I've been moving to USB and Ethernet. That whole ISA/EISA/PCI bus thing is such a pain. Given USB/Ethernet, Prologix has nice GPIB interfaces. NI and Agilent also have them. brand new, the latter cost more, but perhaps they show up used at lower prices. ___ 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] Could someone please recommend GPIB card
There was an PCI-GPIB from NI offered on TestEquipTrader on Yahoo a couple of days ago. -John Hello, I am looking for a PCI-GPIB card to use in a machine running windows XP. After looking on Ebay there are many different options at many different prices. I am not sure which would be compatible with my set up. Currently I have a ACER Laptop, with a NI PCMCIA GPIB card and I was able to locate the drivers to make it run with the TimeLab, the HP 5730B, I have a Dell dimension 2400 desktop, which runs other Ham radio software, like weak signal DSP, some Seismograph, Dataq data logging and others. This computer has a spare PCI slot and I would like to move the HPIB capabilities into this machine, so I only need to run 1 computer. Maybe someone is looking for a trade for the PCMCIA GPIB Card and cable? Thank you for the help Paul A. Cianciolo W1VLF http://www.rescueelectronics.com/ Our business computer network is powered exclusively by solar and wind power. Converting Photons to Electrons for over 20 years ___ 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. ___ 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] Lucent RFTG-m-XO GPSDO
Hi, K4CLE A while ago, I invested $600 in two pairs of the GPSDO and LPRO units. Intended to replace a pair of 48 volt Z3801 receivers with 24 volt units. Put them in the project pile for lack of drawings and software, where they have languished. Their value has dropped, but I'd still like to have 24 volt receivers with software like GPSCon that can do SNTP. RS422 is no problem. Please let me know if you find drawings and software. Copies are worth more than postage to me. Bill Hawkins -Original Message- From: k4...@aol.com Sent: Sunday, October 09, 2011 1:41 PM I will look for my drawings on this unit and send copies to you. And I know I have the software too, just need to find it! I have read in some of the notes here on time-nuts that people may be able to use RS232 for communicating with the RFTG units. But it was designed for RS422 and I would suggest you use RS422 for best results. I use a little RS422-4S232 converter which has worked fine for me. The early units had FRS rubidiums in them. The LPRO was used in the newer units. So, you have the more recent design. ___ 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] Could someone please recommend GPIB card?
Paul The quick and cheap migration to a desktop PC if you have the PCMCIA GPIB card is to get a PCI to PCMCIA adapter. They are cheap and plentiful for as little at $6.50. e.g. http://www.ebay.com/itm/PCI-PCMCIA-CARD-ADAPTER-/130584195663?pt=LH_DefaultD omain_0hash=item1e676cb24f#ht_500wt_1413 They do work well with the NI card, having used the combo with the 5370 successfully. Demian Date: Sun, 9 Oct 2011 18:36:52 -0400 From: Paul A. Cianciolo pa...@snet.net To: 'Discussion of precise time and frequency measurement' time-nuts@febo.com Subject: [time-nuts] Could someone please recommend GPIB card Message-ID: 003501cc86d3$fdd79fd0$f986df70$@snet.net Content-Type: text/plain; charset=us-ascii Hello, I am looking for a PCI-GPIB card to use in a machine running windows XP. After looking on Ebay there are many different options at many different prices. I am not sure which would be compatible with my set up. Currently I have a ACER Laptop, with a NI PCMCIA GPIB card and I was able to locate the drivers to make it run with the TimeLab, the HP 5730B, I have a Dell dimension 2400 desktop, which runs other Ham radio software, like weak signal DSP, some Seismograph, Dataq data logging and others. This computer has a spare PCI slot and I would like to move the HPIB capabilities into this machine, so I only need to run 1 computer. Maybe someone is looking for a trade for the PCMCIA GPIB Card and cable? Thank you for the help Paul A. Cianciolo W1VLF ___ 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] Could someone please recommend GPIB card
USB can be a pain if you have several, how do you ensure they pop up with the same identity? Serial port adapters have that issue. Not aware that there is a general solution to it. For USB at least there is a scan order to assist, and USB doesn't hurt as the ISA did. Cheers, Magnus About Windows - If the USB adapters show as drive letters, Disk Management in Win 2K /XP / Vista (ugh) / Win 7 can assign sticky drive letters to them. (Right click on My Computer, Select Manage, double click on disk management...) But if they are USB HID (Human I/F Devices) There is no drive association. I have no HID expertise. John K1AE ___ 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] Could someone please recommend GPIB card
But if they are USB HID (Human I/F Devices) There is no drive association. I have no HID expertise. On Linux, the udev stuff helps with that. FTDI serial-USB adapters have a serial number. That lets you can associate a name like /dev/gpib with /dev/ttyUSBx where the x is whatever the system assigns when you plug it in. This lets you plug it into any slot. You can also setup the same sort of name when a serial device is plugged into a specific slot. I'll say more if anybody wants. -- These are my opinions, not necessarily my employer's. I hate spam. ___ 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] Could someone please recommend GPIB card
You can troll sci.engineering.design for users of the prologix usb and ethernet interfaces. However I think the best suggestion was to get the pci to pcmcia adadpter. My recollection is cardbus is 32bits and pcmcia is 16bits. My it shouldn't be an issue unless you try to run DOS. The only reason I mention this is I can't run some serial cards via my cardbus slot on my notebook due to the lack of a driver. -Original Message- From: Paul A. Cianciolo pa...@snet.net Sender: time-nuts-boun...@febo.com Date: Sun, 9 Oct 2011 18:59:40 To: 'Discussion of precise time and frequency measurement'time-nuts@febo.com Reply-To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] Could someone please recommend GPIB card Jim, I am open to all the suggestions. Just looked at the Prologix site, The usb interface is interesting, also the Ethernet device looks cool. I have a wireless network here with about 10 devices on it. Would I be able to monitor, say the 5370,b with TL running and maybe my HP3586 Selective level meter from a wireless laptop Using the proper software?This sounds like an interesting way to go. I have to read up on the prologix more. Paul A. Cianciolo W1VLF http://www.rescueelectronics.com/ Our business computer network is powered exclusively by solar and wind power. Converting Photons to Electrons for over 20 years -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Jim Lux Sent: Sunday, October 09, 2011 6:42 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Could someone please recommend GPIB card On 10/9/11 3:36 PM, Paul A. Cianciolo wrote: Hello, I am looking for a PCI-GPIB card to use in a machine running windows XP. After looking on Ebay there are many different options at many different prices. I am not sure which would be compatible with my set up. Currently I have a ACER Laptop, with a NI PCMCIA GPIB card and I was able to locate the drivers to make it run with the TimeLab, the HP 5730B, I have a Dell dimension 2400 desktop, which runs other Ham radio software, like weak signal DSP, some Seismograph, Dataq data logging and others. This computer has a spare PCI slot and I would like to move the HPIB capabilities into this machine, so I only need to run 1 computer. I've been moving to USB and Ethernet. That whole ISA/EISA/PCI bus thing is such a pain. Given USB/Ethernet, Prologix has nice GPIB interfaces. NI and Agilent also have them. brand new, the latter cost more, but perhaps they show up used at lower prices. ___ 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. ___ 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. ___ 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] Could someone please recommend GPIB card
The PCI and USB HPib interfaces I've seen are terribly expensive. Wpuld it be possible to fake an interface with a parallel port and bit banging? Possibly an Arduino? On 10/09/2011 06:54 PM, li...@lazygranch.com wrote: You can troll sci.engineering.design for users of the prologix usb and ethernet interfaces. However I think the best suggestion was to get the pci to pcmcia adadpter. My recollection is cardbus is 32bits and pcmcia is 16bits. My it shouldn't be an issue unless you try to run DOS. The only reason I mention this is I can't run some serial cards via my cardbus slot on my notebook due to the lack of a driver. -Original Message- From: Paul A. Cianciolopa...@snet.net Sender: time-nuts-boun...@febo.com Date: Sun, 9 Oct 2011 18:59:40 To: 'Discussion of precise time and frequency measurement'time-nuts@febo.com Reply-To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] Could someone please recommend GPIB card Jim, I am open to all the suggestions. Just looked at the Prologix site, The usb interface is interesting, also the Ethernet device looks cool. I have a wireless network here with about 10 devices on it. Would I be able to monitor, say the 5370,b with TL running and maybe my HP3586 Selective level meter from a wireless laptop Using the proper software?This sounds like an interesting way to go. I have to read up on the prologix more. Paul A. Cianciolo W1VLF http://www.rescueelectronics.com/ Our business computer network is powered exclusively by solar and wind power. Converting Photons to Electrons for over 20 years -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Jim Lux Sent: Sunday, October 09, 2011 6:42 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Could someone please recommend GPIB card On 10/9/11 3:36 PM, Paul A. Cianciolo wrote: Hello, I am looking for a PCI-GPIB card to use in a machine running windows XP. After looking on Ebay there are many different options at many different prices. I am not sure which would be compatible with my set up. Currently I have a ACER Laptop, with a NI PCMCIA GPIB card and I was able to locate the drivers to make it run with the TimeLab, the HP 5730B, I have a Dell dimension 2400 desktop, which runs other Ham radio software, like weak signal DSP, some Seismograph, Dataq data logging and others. This computer has a spare PCI slot and I would like to move the HPIB capabilities into this machine, so I only need to run 1 computer. I've been moving to USB and Ethernet. That whole ISA/EISA/PCI bus thing is such a pain. Given USB/Ethernet, Prologix has nice GPIB interfaces. NI and Agilent also have them. brand new, the latter cost more, but perhaps they show up used at lower prices. ___ 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. ___ 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. ___ 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. -- Chuck Forsberg WA7KGX N2469R c...@omen.com www.omen.com Developer of Industrial ZMODEM(Tm) for Embedded Applications Omen Technology Inc The High Reliability Software 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430 ___ 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] Could someone please recommend GPIB card
On 10/9/11 7:11 PM, Chuck Forsberg WA7KGX N2469R wrote: The PCI and USB HPib interfaces I've seen are terribly expensive. Wpuld it be possible to fake an interface with a parallel port and bit banging? Possibly an Arduino? Sure... but surplus NI cards turn up pretty cheap, and the Prologix and equivalent widgets aren't all that expensive. By the time you take an Arduino and put it in a box with a power supply, etc (And buy that darned connector), I'll bet you're pretty close to the $150 cost of a Prologix USB box. And, then you still have to do the programming, which is non-trivial if you want to support the entire protocol (I did part of a IEEE-488 interface with a Z80 some decades ago.. It's 1 Mbyte/sec and you really do need to support all the handshaking properly.) I imagine you could probably do a fairly decent job with a FPGA that has a USB interface. But then, you're still in the $50-100 board range and still needing the connector, power supply, and box. There are, of course, ISA cards around for $20-30, but finding drivers, etc is going to be a chore (of course, that DOS machine with ISA bus you're running it in probably does have the needed 5.25 disk drive for the driver) I guess it depends on whether you want so spend your time building GPIB interfaces or doing whatever you need the GPIB interface for. ___ 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] Lucent RFTG-m-XO GPSDO
On Mon, Oct 10, 2011 at 2:41 AM, k4...@aol.com k4...@aol.com wrote: Hi Peter, yes it sounds like the UT+ is defective if it never gets any sats. You can probably find one on eBay. Someone probably fired RF into the receiver front-end and zapped it. I think the antenna you are using should be OK. I will look for my drawings on this unit and send copies to you. And I know I have the software too, just need to find it! I have read in some of the notes here on time-nuts that people may be able to use RS232 for communicating with the RFTG units. But it was designed for RS422 and I would suggest you use RS422 for best results. I use a little RS422-4S232 converter which has worked fine for me. The early units had FRS rubidiums in them. The LPRO was used in the newer units. So, you have the more recent design. Any documentation you can provide would be very helpful - I'm pretty much sure, based on the comments made by yourself and the other people on the list, that my GPS Rx is broken - I just found my other oncore (a VP) and that works correctly in the same test setup that the UT+ out of the RFTG failed to track in. I also tried the little Motorola antenna on both boards, with the same results. I tried plugging the VP into the Lucent box, but it doesn't seem to like it (the fault light just stays on), so I have ordered a replacment UT+ board. I assume the units that had a FRS in them had different PCBs? The LPRO is plugged directly into the baseboard on my RB unit (KS-24019 L105B, if that means anything) and it seems to be pretty clearly designed around it. The XO (KS-24019 L106C) has the same PCB in it, except that there is an extra section of PCB with an Efratom OCXO mounted on it where the LPRO is in the RB unit. It's sort of a pity it's not an FRS - I've fixed some of those in the past, and they were pretty straightforward things to work on - all standard parts and it had the schematic in the manual - all the LPRO manual says is not user-servicable; send it back to us - but that lamp heater circuit looks fairly simple anyway, so I guess I can have a go at that while I'm waiting for the GPS board to arrive. And thank you to everyone that offered suggestions. Regards, Pete ___ 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] Could someone please recommend GPIB card
NI used to have a trade-in policy. You would get half off the new price. The trade-in page was always kind of hidden. I took a quick look, but don't see it on the website. It wouldn't hurt to ask NI, since they know Prologix sells for half their cost. ___ 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] Lucent RFTG-m-XO GPSDO
There are scans of the L-Pro service manual out there. Google should help here. Randy From: Peter Bell bell.pe...@gmail.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Sun, October 9, 2011 9:13:14 PM Subject: Re: [time-nuts] Lucent RFTG-m-XO GPSDO On Mon, Oct 10, 2011 at 2:41 AM, k4...@aol.com k4...@aol.com wrote: Hi Peter, yes it sounds like the UT+ is defective if it never gets any sats. You can probably find one on eBay. Someone probably fired RF into the receiver front-end and zapped it. I think the antenna you are using should be OK. I will look for my drawings on this unit and send copies to you. And I know I have the software too, just need to find it! I have read in some of the notes here on time-nuts that people may be able to use RS232 for communicating with the RFTG units. But it was designed for RS422 and I would suggest you use RS422 for best results. I use a little RS422-4S232 converter which has worked fine for me. The early units had FRS rubidiums in them. The LPRO was used in the newer units. So, you have the more recent design. Any documentation you can provide would be very helpful - I'm pretty much sure, based on the comments made by yourself and the other people on the list, that my GPS Rx is broken - I just found my other oncore (a VP) and that works correctly in the same test setup that the UT+ out of the RFTG failed to track in. I also tried the little Motorola antenna on both boards, with the same results. I tried plugging the VP into the Lucent box, but it doesn't seem to like it (the fault light just stays on), so I have ordered a replacment UT+ board. I assume the units that had a FRS in them had different PCBs? The LPRO is plugged directly into the baseboard on my RB unit (KS-24019 L105B, if that means anything) and it seems to be pretty clearly designed around it. The XO (KS-24019 L106C) has the same PCB in it, except that there is an extra section of PCB with an Efratom OCXO mounted on it where the LPRO is in the RB unit. It's sort of a pity it's not an FRS - I've fixed some of those in the past, and they were pretty straightforward things to work on - all standard parts and it had the schematic in the manual - all the LPRO manual says is not user-servicable; send it back to us - but that lamp heater circuit looks fairly simple anyway, so I guess I can have a go at that while I'm waiting for the GPS board to arrive. And thank you to everyone that offered suggestions. Regards, Pete ___ 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. ___ 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.
