[time-nuts] Pinouts for a Trimble Resolution T Timing GPS module 12ns 1pps
Does anyone have or know where I can find the pinouts for a Trimble Resolution T Timing GPS module 12ns 1pps? Thankyou Ken Kubick kenkub...@hotmail.com ___ 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] Pinouts for a Trimble Resolution T Timing GPS module 12ns 1pps
ftp://ftp.trimble.com/pub/sct/embedded/bin/Manuals/ResolutionT_072408.pdf - Original Message - From: Ken Kubick [mailto:kenkub...@hotmail.com] To: Time Nuts [mailto:time-nuts@febo.com] Sent: Thu, 17 May 2012 17:24:05 +1000 Subject: [time-nuts] Pinouts for a Trimble Resolution T Timing GPS module12ns 1pps Does anyone have or know where I can find the pinouts for a Trimble Resolution T Timing GPS module 12ns 1pps? Thankyou Ken Kubick kenkub...@hotmail.com ___ 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] Pinouts for a Trimble Resolution T Timing GPS module12ns 1pps
Does anyone have or know where I can find the pinouts for a Trimble Resolution T Timing GPS module 12ns 1pps? Thankyou Ken Kubick The user guide? http://trl.trimble.com/dscgi/ds.py/Get/File-221342/ResolutionT_UG_2B_54655-05-ENG.pdf Page 24 Cheers, David -- SatSignal software - quality software written to your requirements Web: http://www.satsignal.eu Email: david-tay...@blueyonder.co.uk ___ 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] Motorola Emulation ( Was Trimble Resolution SMT -, good/bad/indifferent?)
From: saidj...@aol.com To: time-nuts@febo.com Message-ID: c3e9.212979a6.3cdd7...@aol.com I figured out that the unit fluke.l sells is running firmware to emulate the Motrola M12+ receiver or similar. So WinOncore 12 does work, and I can get the following receiver ID: COPYRIGHT 2008 Trimble Navigation Ltd. SFTW P/N # SOFTWARE VER # 0.03.0 SOFTWARE REV # 00 SOFTWARE DATE 04/27/2009 MODEL #3011 HDWR P/N # SERIAL # 20393136 MANUFACTUR DATE 06/05/2009 OPTIONS LIST I'm very curious. I've now seen 2 postings with 2 different GPS modules (this one, and the Navman) which supposedly emulate Motorola Binary mode. These should (as confirmed above??) allow the use of these with WinOnCore and directly with NTP, assuming that enough of the protocol is emulated to allow drop-in replacement. Has anyone tried this, including setting TRAIM, satellite angle, etc with WinOnCore in MotBin mode, and seeing the performance (especially in comparison to Native TSIP or Jupiter Binary)? I'd consider using these to replace some of my aging UT+ Oncores. ___ 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] Browning RH-10 WWV Receiver
Picked up this unit recently at an auction. It uses those funky vacuum field effect devices with the 8-pin KSC (Keyed Single Circular) pinout. For a 50+ year old instrument, it is in immaculate condition except for the missing bottom plate, but that could be easily remedied. I am reluctant to power it up due to its age and not knowing when it last had voltage on the 'lytics. I haven't tried Google yet, but does anyone have any doc's on this critter or other knowledge? Thanks! This is a great list, and always entertaining and educational, even when things go a little off topic. Tom Holmes, N8ZM Tipp City, OH EM79 ___ 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] Why are 1PPS signals so skinny?
The LED current could also be switched with a very long rise/fall time so that there isn't any transient, in the abrupt sense of the word. Who's gonna see the difference? Tom Holmes, N8ZM Tipp City, OH EM79 -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Magnus Danielson Sent: Wednesday, May 16, 2012 10:57 AM To: time-nuts@febo.com Subject: Re: [time-nuts] Why are 1PPS signals so skinny? On 05/16/2012 02:21 PM, shali...@gmail.com wrote: It would be very easy to use a constant current to drive the LED and simply short it periodically to provide the blinking without supply current variations. You would still have short transients in the drive circuit, but these should be much easier to filter. Agreed. You could also have a pair of LEDs and alternate which of them is lit. Then, to reduce the impact on the PPS signals, the LED on/off could be forced to be phase-shifted to the PPS. 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 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] Why are 1PPS signals so skinny
On 05/17/2012 05:38 AM, Tom Holmes wrote: The LED current could also be switched with a very long rise/fall time so that there isn't any transient, in the abrupt sense of the word. Who's gonna see the difference? In a group that has GPS synchronized clock hands? HERESY! :) Tom Holmes, N8ZM Tipp City, OH EM79 ___ 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] Pinouts for a Trimble Resolution T Timing GPS module 12ns 1pps
On 5/17/2012 2:24 AM, Ken Kubick wrote: Does anyone have or know where I can find the pinouts for a Trimble Resolution T Timing GPS module 12ns 1pps? Thankyou I have a Resolution T User Guide PDF file which has that info. I found it on the Trimble web site. If you cannot find it, I can send it to you. Chris ___ 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] Pinouts for a Trimble Resolution T Timing GPS module 12ns 1pps
On 5/17/2012 2:24 AM, Ken Kubick wrote: Does anyone have or know where I can find the pinouts for a Trimble Resolution T Timing GPS module 12ns 1pps? Thankyou I have a Resolution T User Guide PDF file which has that info. I found it on the Trimble web site. If you cannot find it, I can send it to you. Chris ___ 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] Documentation required
Does someone know whe I could find software and documentation for Trimble 10MHz GPS disciplined oscillator A4 size board? All details will be appreciated. Tom, VK2OE ** This message is intended for the addressee named and may contain privileged information or confidential information or both. If you are not the intended recipient please delete it and notify the sender. ** ___ 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] Oscilloquartz 4532 GPS receiver
Just picked up an interesting piece of hardware on eBay that I hadn't encountered before, an Oscilloquartz 4532 GPS receiver as described here: http://www.oscilloquartz.com/index.php?pageid=37 It was selling for about the same price that Thunderbolts from China have been fetching, but it uses a nice OSA 8663 DOCXO with 1E-10/day holdover specs. I powered it up with a standard Trimble patch antenna and it appears to be serviceable. The all-important 1-pps LED started flashing green after spending about 30 minutes in various red/green states. However, while the 10 MHz output is clean and reasonably stable (ADEV near 4E-12 at t=1s), it's about 5 Hz too low. Possibly it's using a grossly-incorrect stored position. It looks like the so-called GUI-based Configuration and Monitoring software mentioned on the web page will be needed to get the unit to lock properly. Is that available anywhere, freely or otherwise? -- john, KE5FX ___ 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] Oscilloquartz 4532 GPS receiver
I saw that on eBay, it is great to see a fellow Time Nut won it. I would think Phase Noise is excellent with the 8663, although I would prefer a version with discrete SMA's on the outputs. I look forward to your impressions after further evaluation. Thomas Knox From: jmi...@pop.net To: time-nuts@febo.com Date: Thu, 17 May 2012 14:53:00 -0700 Subject: [time-nuts] Oscilloquartz 4532 GPS receiver Just picked up an interesting piece of hardware on eBay that I hadn't encountered before, an Oscilloquartz 4532 GPS receiver as described here: http://www.oscilloquartz.com/index.php?pageid=37 It was selling for about the same price that Thunderbolts from China have been fetching, but it uses a nice OSA 8663 DOCXO with 1E-10/day holdover specs. I powered it up with a standard Trimble patch antenna and it appears to be serviceable. The all-important 1-pps LED started flashing green after spending about 30 minutes in various red/green states. However, while the 10 MHz output is clean and reasonably stable (ADEV near 4E-12 at t=1s), it's about 5 Hz too low. Possibly it's using a grossly-incorrect stored position. It looks like the so-called GUI-based Configuration and Monitoring software mentioned on the web page will be needed to get the unit to lock properly. Is that available anywhere, freely or otherwise? -- john, KE5FX ___ 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] Oscilloquartz 4532 GPS receiver
On 05/17/2012 11:53 PM, John Miles wrote: Just picked up an interesting piece of hardware on eBay that I hadn't encountered before, an Oscilloquartz 4532 GPS receiver as described here: http://www.oscilloquartz.com/index.php?pageid=37 It was selling for about the same price that Thunderbolts from China have been fetching, but it uses a nice OSA 8663 DOCXO with 1E-10/day holdover specs. I powered it up with a standard Trimble patch antenna and it appears to be serviceable. The all-important 1-pps LED started flashing green after spending about 30 minutes in various red/green states. However, while the 10 MHz output is clean and reasonably stable (ADEV near 4E-12 at t=1s), it's about 5 Hz too low. Possibly it's using a grossly-incorrect stored position. It looks like the so-called GUI-based Configuration and Monitoring software mentioned on the web page will be needed to get the unit to lock properly. Is that available anywhere, freely or otherwise? Do ask Oscilloquartz directly. 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] Buffering a PPS signal
Greetings, As I mentioned briefly a few days ago I'm working on an interface board for the Trimble Resolution SMT carrier board to provide a convenient way to get power in and PPS/serial out. The PPS output is a 3.3v, 125 microsecond long pulse and I'd like to buffer it with something that can drive a 50 ohm terminated line. What's the best way to go about doing this? I've looked at using a MOSFET driver like FAN3111ESX but most of these have a moderate (30-50ns) delay with a moderate temperature coefficient, but perhaps I'm expecting too much. For people interested in buying the board, it will have USB and RS-232 (with PPS on the Carrier Detect line) plus the 50 ohm PPS output on BNC. Physically, it's the same size and shape as the RSMT board itself and will fit directly on top. Total cost should be about 20 USD. Current schematic is here, comments welcome: http://partiallystapled.com/~gxti/circuits/2012/05/17-piggyv2.png Cheers, -- m. tharp ___ 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] Oscilloquartz 4532 GPS receiver
I saw that on eBay, it is great to see a fellow Time Nut won it. I would think Phase Noise is excellent with the 8663, although I would prefer a version with discrete SMA's on the outputs. It's not very quiet, unfortunately, but I'll bet this one would look better if I were to remove it from the board. Note the slight elevation in the noise trace that begins around 500 Hz and continues through 10 Hz, obscuring the usual 1/f corner. That suggests that either the close-in noise is artificially high, or the broadband floor is... or perhaps both. OSA's specifications for the 8662/8663 appear to be unusually conservative. The data sheet calls for -80 dBc/Hz at 1 Hz, and it would be surprising if it were really that noisy, or even close. Another artifact you can see is a small spur that can probably be blamed on the flashing LED. The LED and its associated PCB traces is not far from the DB-9 output jack. I actually thought it seemed to be blinking a little bit faster than 1-pps, and sure enough you can see a small bump around 0.9 Hz. Not a smoking gun but it does look suspicious. -- john attachment: osa4532.png___ 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] Oscilloquartz 4532 GPS receiver
Another artifact you can see is a small spur that can probably be blamed on the flashing LED. The LED and its associated PCB traces is not far from the DB-9 output jack. I actually thought it seemed to be blinking a little bit faster than 1-pps, and sure enough you can see a small bump around 0.9 Hz. (/s/faster/slower) -- john ___ 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] Buffering a PPS signal
Hi Parallel up as many inverters (or logic buffers) as you feel you need. Much less delay than the MOSFET drivers. Small packages for easy layout. Run off of 5 volts (or what ever…). Put a resistor in series with the output of each of them and they will equalize very well. Bob On May 17, 2012, at 7:35 PM, Michael Tharp wrote: Greetings, As I mentioned briefly a few days ago I'm working on an interface board for the Trimble Resolution SMT carrier board to provide a convenient way to get power in and PPS/serial out. The PPS output is a 3.3v, 125 microsecond long pulse and I'd like to buffer it with something that can drive a 50 ohm terminated line. What's the best way to go about doing this? I've looked at using a MOSFET driver like FAN3111ESX but most of these have a moderate (30-50ns) delay with a moderate temperature coefficient, but perhaps I'm expecting too much. For people interested in buying the board, it will have USB and RS-232 (with PPS on the Carrier Detect line) plus the 50 ohm PPS output on BNC. Physically, it's the same size and shape as the RSMT board itself and will fit directly on top. Total cost should be about 20 USD. Current schematic is here, comments welcome: http://partiallystapled.com/~gxti/circuits/2012/05/17-piggyv2.png Cheers, -- m. tharp ___ 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] Buffering a PPS signal
In line with what Bob suggests, here is one of the square wave outputs of an HP Z3816A... http://www.xertech.net/Projects/Z3816/Output_circ.gif Or look at the project for context... http://www.xertech.net/Projects/Z3816/3816_mod.html On 5/17/2012 6:17 PM, Bob Camp wrote: Hi Parallel up as many inverters (or logic buffers) as you feel you need. Much less delay than the MOSFET drivers. Small packages for easy layout. Run off of 5 volts (or what ever…). Put a resistor in series with the output of each of them and they will equalize very well. Bob On May 17, 2012, at 7:35 PM, Michael Tharp wrote: ___ 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] HP-3336B Power Supply grief...
A friend of mine, Marv, W6OQI has a HP-3336B with a failed power supply. He and I both have manuals but they show the wrong power supply schematic and parts layout. What he needs is a rev E power supply schematic and parts layout. Can anyone help? Burt, K6OQK Burt I. Weiner Associates Broadcast Technical Services Glendale, California U.S.A. b...@att.net www.biwa.cc K6OQK ___ 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.
