Re: [time-nuts] Synergy-GPS SSR-6tru problems
Hi Paul, No, it's the right configuration. The part number is as you say and it says SSR-6tru on a paper label. I'm certain it's something on my end, but I just don't see it. I think I'm going to go the mini-clips route, assuming a USB adapter will power the board. I'll have to look at the specs to see current draw. Bob From: Paul To: Discussion of precise time and frequency measurement Sent: Wednesday, July 16, 2014 2:33 PM Subject: Re: [time-nuts] Synergy-GPS SSR-6tru problems On Wed, Jul 16, 2014 at 2:54 PM, Bob Stewart wrote: > I fooled around with PUBX 41, and can't get the board to respond. I had some problems but that's because they sent the wrong configuration (a 16062133G). What's the part number? Assuming it hasn't changed a TRu is 16062152G. > I don't have the ability to deal with those .05" spaced pins on the GPS > board's connector, or to supply the 3V power. I was able to compress and heat shrink some .1 connectors on a .05 connector although I didn't try it on the SSR-6T. -- Paul ___ 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] Synergy-GPS SSR-6tru problems
On Wed, Jul 16, 2014 at 2:54 PM, Bob Stewart wrote: > I fooled around with PUBX 41, and can't get the board to respond. I had some problems but that's because they sent the wrong configuration (a 16062133G). What's the part number? Assuming it hasn't changed a TRu is 16062152G. > I don't have the ability to deal with those .05" spaced pins on the GPS > board's connector, or to supply the 3V power. I was able to compress and heat shrink some .1 connectors on a .05 connector although I didn't try it on the SSR-6T. -- Paul ___ 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] Synergy-GPS SSR-6tru problems
Dennis, I fooled around with PUBX 41, and can't get the board to respond. I think that with the original board, I *once* got some PUBX messages, but at this point I am only seeing NMEA broadcasts. That once may have been when I was using a serial port instead of the USB I'm using right now. This evening I will get in with the scope and do come comparisons on the 10-pin connector to see if there are differences between then the UT+ is plugged in and the SSR-6tru mounted on the adapter card. I have an ftdi adapter that I may put on as well if nothing else gives any results. I don't have the ability to deal with those .05" spaced pins on the GPS board's connector, or to supply the 3V power. But, if needs be, I can get a connector, put in a 3V regulator, and give that a try. Come to think of it: one of my little USB to TTL adapter boards can supply 3V. Maybe I can use some mini-clips to jumper directly to the .05" pins on the GPS board, let the USB adapter supply the 3V, and give that a try. I'm a bit leery of going that route, though. If I get pins mixed up and blow the board I've wasted all this time for nothing. Bob From: Dennis Ferguson To: Discussion of precise time and frequency measurement Cc: Bob Stewart Sent: Tuesday, July 15, 2014 11:46 PM Subject: Re: [time-nuts] Synergy-GPS SSR-6tru problems On 15 Jul, 2014, at 16:32 , Bob Stewart wrote: > I do not know what the problem is. The UT+ works (with the appropriate > software). The SSR-6tru is deaf using all the software I have available to > me. I am at my wits end, and I have nothing else that I can think of to try. I've got several of these boards and they've worked okay for me without doing anything special. I have not tried the software you are using, however, nor do I use the adapter you mention (does that adapt the connector on the SSR-6tru to a connector that fits your UT+ board?). I made a connector to talk to mine directly from a 3 volt serial port in a BBB SOIC. Since you can see the NMEA sentences the transmit side of the serial port from the LEA-6T is clearly working and you have the baud rate right, but your symptoms suggest the module doesn't hear you. Have you tried looking at the basic connection, i.e. that the serial port receive pin on the module wiggles at the right voltage and polarity when the software tries to send stuff (maybe there are two ways to plug in the adapter, only one of which works)? If that looks okay then the only other guess I can think of is that the software is trying to talk to the board with u-Blox binary messages but that protocol has been turned off for input on the port (the PUBX,41 NMEA sentence can turn it on and off), but that seems unlikely since, no matter how I reconfigure mine, a power-on reset always sees the serial port come up willing to receive either protocol. Dennis Ferguson ___ 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] Synergy-GPS SSR-6tru problems
Hi Rex, Arts reply wasn't relevant because the board talks ublox rather than Motorola binary. The board has the same footprint as the UT+. You just plug it in. They sell 2 versions: one that talks ublox and one that talks Motorola binary. I got the ublox version so that I'd get some experience with that with the new GPSDO that I'm building. However, my GPSDO is not yet hooked up to the comms on the receiver. The comms is going directly to a PC. When the UT+ is in, I have no trouble controlling it with WinOncore12. When the SSR-6tru (which is an LEA-6T on an adapter board) is plugged in, I should be able to control it with ublox's "u-center" program. For whatever reason, I can't. They, Synergy, have tested this board on their test platform, using u-center software. It works. I have absolutely no doubt that it works. I've seen screen shots. I just don't understand why it's not working here. There has to be something, probably something quite trivial, that I'm missing. My comms signal is getting onto the board. I can see it with a scope. But, in spite of that, something is still not right. Bob From: Rex To: Discussion of precise time and frequency measurement Sent: Wednesday, July 16, 2014 3:45 AM Subject: Re: [time-nuts] Synergy-GPS SSR-6tru problems I think your story is rather incomplete. You never (to my deduction) told us what you are plugging this into. You mention a GPSDO so I guess that is where it is plugged while not doing what you want, but you never mention what that GPSDO might be. You blew off Art Sepin's reply as not relevant. Why? What is the communication path to the receiver from whatever you are using to send commands? Is it through the GPSDO? If so, it seems to me the communication may not be direct and may be filtered by the GPSDO so the commands you are sending aren't reaching the new board in the way you would like. I never used one of these new boards you are trying to use, but if you want good answers I think you need to tell us exactly what you are plugging it into and through what signal path you are issuing the commands. On 7/15/2014 2:36 PM, Bob Stewart wrote: > I got one of these recently, along with the adapter board. This is the ublox > only version, and I am using u-center version 8.11 software. I am unable to > make it work properly. The NMEA section happily sends out messages, but I > cannot get anything else to work. e.g. it ignores the commands to turn off > antenna power. It ignores the command to put it in Survey-In mode. Nothing > is displayed when monitoring the SVIN field. I sent the board back and > received one that they have tested there at the site. Same story. When I > plug my UT+ into the same connector in my GSPDO, it works just fine and > responds properly to commands from WinOncore12. I have used both a serial > port adapter and a USB-adapter to drive the TTL lines to the board. > > > So, there is something wrong at my end, and it's probably something so > trivial that no-one would think to mention it. Has anyone tried this board? > Can you think of any setting that's "inherently obvious to the most casual > observer" that a newbie could repeatedly overlook? For example, is there > some first setting that you always do in u-center to shut down the NMEA and > turn on the UBX, but the setting does not save on the board and the u-center > software always overrides it? > > > The configuration is this: The adapter does the 3V to 5V stuff, and plugs > into the same connector as my UT+. The antenna lead is connected to a > non-powered port on my GPS Source splitter. The splitter connects to a puck > in the attic via RG-6. The SNR of the received signals is in the 20-50 range > on the u-center display window. I have tried driving a different puck > directly that is in my lab room. No change except for lower SNR values. > > > Bob - AE6RV > ___ > 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] Synergy-GPS SSR-6tru problems
I think your story is rather incomplete. You never (to my deduction) told us what you are plugging this into. You mention a GPSDO so I guess that is where it is plugged while not doing what you want, but you never mention what that GPSDO might be. You blew off Art Sepin's reply as not relevant. Why? What is the communication path to the receiver from whatever you are using to send commands? Is it through the GPSDO? If so, it seems to me the communication may not be direct and may be filtered by the GPSDO so the commands you are sending aren't reaching the new board in the way you would like. I never used one of these new boards you are trying to use, but if you want good answers I think you need to tell us exactly what you are plugging it into and through what signal path you are issuing the commands. On 7/15/2014 2:36 PM, Bob Stewart wrote: I got one of these recently, along with the adapter board. This is the ublox only version, and I am using u-center version 8.11 software. I am unable to make it work properly. The NMEA section happily sends out messages, but I cannot get anything else to work. e.g. it ignores the commands to turn off antenna power. It ignores the command to put it in Survey-In mode. Nothing is displayed when monitoring the SVIN field. I sent the board back and received one that they have tested there at the site. Same story. When I plug my UT+ into the same connector in my GSPDO, it works just fine and responds properly to commands from WinOncore12. I have used both a serial port adapter and a USB-adapter to drive the TTL lines to the board. So, there is something wrong at my end, and it's probably something so trivial that no-one would think to mention it. Has anyone tried this board? Can you think of any setting that's "inherently obvious to the most casual observer" that a newbie could repeatedly overlook? For example, is there some first setting that you always do in u-center to shut down the NMEA and turn on the UBX, but the setting does not save on the board and the u-center software always overrides it? The configuration is this: The adapter does the 3V to 5V stuff, and plugs into the same connector as my UT+. The antenna lead is connected to a non-powered port on my GPS Source splitter. The splitter connects to a puck in the attic via RG-6. The SNR of the received signals is in the 20-50 range on the u-center display window. I have tried driving a different puck directly that is in my lab room. No change except for lower SNR values. Bob - AE6RV ___ 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.
