Time Nuts- I am in the process of purchasing a TSC5120A analyzer. The seller sent me this note. Can anyone shed more light on this topic? Beyond the precaution mentioned (e.g., plug it into a UPS), is there anything else I can/should do to keep the unit working properly? Thanks! Jim =========================== Please note that the Symmetricom 5120As are VERY Sensitive when it comes to powering the unit on and off. It is reccomended that they not be powered off within at least a minute after storing and settings or else the CR Drive and the operating system may be corrupted. It does NOT LIKE being powering off unexpectedly due to power line issues as this may very well also corrupt the CF Drive and the operating system. Symmetricom stopped supporting these Jan 3rd of this year but they were able to send me a replacement CF drive which is the weakest link in this system.

YES, BACK UP THE CF DRIVE SEVERAL TIMES AS A SAFETY PRECAUTION !!!! Bill, WB6BNQ On 3/23/2023 4:25 PM, AC0XU (Jim) via time-nuts wrote: > Time Nuts- > > I am in the process of purchasing a TSC5120A analyzer. The seller sent me this note. Can anyone shed more light on this topic? Beyond the precaution mentioned (e.g., plug it into a UPS), is there anything else I can/should do to keep the unit working properly? > > Thanks! > > Jim > > > =========================== > Please note that the Symmetricom 5120As are VERY Sensitive when it comes to powering the unit on and off. It is reccomended that they not be powered off within at least a minute after storing and settings or else the CR Drive and the operating system may be corrupted. It does NOT LIKE being powering off unexpectedly due to power line issues as this may very well also corrupt the CF Drive and the operating system. Symmetricom stopped supporting these Jan 3rd of this year but they were able to send me a replacement CF drive which is the weakest link in this system. > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com

The note is correct; the box runs a BSD variant without any power-down logic. It's no different from pulling the plug on a Windows machine without shutting it down. 99% of the time nothing bad will happen, 1% of the time you're in for a bad time. Some versions of the OS bring up a warning message during bootup to the effect of, "To avoid file system corruption, please power the system down with the power switch rather than by pulling the plug." It's not clear what's up with this message because the power switch is simply wired in series with the AC line, at least on the units I've seen. It does not initiate any kind of power-down sequence. Maybe it does on some of them. It's safest to power down only after a measurement has been running for a while or stopped for a while, never right after beginning a measurement or changing any settings. I wouldn't bother with a UPS myself. If the seller will hook you up with the CF image, or if you are comfortable opening the box up and making a backup (recommended) , then CF corruption is not that big a deal. TimeLab works very well with these boxes, so I'd recommend taking a few minutes to hook up a network cable and give it a try. -- john > -----Original Message----- > From: AC0XU (Jim) via time-nuts [mailto:time-nuts@lists.febo.com] > Sent: Thursday, March 23, 2023 4:26 PM > To: time-nuts@lists.febo.com > Cc: AC0XU (Jim) > Subject: [time-nuts] Query about TSC5120A usage protocols > > Time Nuts- > > I am in the process of purchasing a TSC5120A analyzer. The seller sent me > this note. Can anyone shed more light on this topic? Beyond the precaution > mentioned (e.g., plug it into a UPS), is there anything else I can/should do to > keep the unit working properly? > > Thanks! > > Jim > > > =========================== > Please note that the Symmetricom 5120As are VERY Sensitive when it comes > to powering the unit on and off. It is reccomended that they not be > powered off within at least a minute after storing and settings or else the > CR Drive and the operating system may be corrupted. It does NOT LIKE being > powering off unexpectedly due to power line issues as this may very well > also corrupt the CF Drive and the operating system. Symmetricom stopped > supporting these Jan 3rd of this year but they were able to send me a > replacement CF drive which is the weakest link in this system. > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com

Hi Bill, Can you share what software you use to back up the CF card? I unsuccessfully tried different ones. But after replacing the copy the machine does not boot. Thanks, Jorge. On Thu, Mar 23, 2023 at 9:38 PM WB6BNQ via time-nuts < time-nuts@lists.febo.com> wrote: > YES, > > BACK UP THE CF DRIVE SEVERAL TIMES AS A SAFETY PRECAUTION !!!! > > Bill, WB6BNQ > > > On 3/23/2023 4:25 PM, AC0XU (Jim) via time-nuts wrote: > > Time Nuts- > > > > I am in the process of purchasing a TSC5120A analyzer. The seller sent > me this note. Can anyone shed more light on this topic? Beyond the > precaution mentioned (e.g., plug it into a UPS), is there anything else I > can/should do to keep the unit working properly? > > > > Thanks! > > > > Jim > > > > > > =========================== > > Please note that the Symmetricom 5120As are VERY Sensitive when it comes > to powering the unit on and off. It is reccomended that they not be powered > off within at least a minute after storing and settings or else the CR > Drive and the operating system may be corrupted. It does NOT LIKE being > powering off unexpectedly due to power line issues as this may very well > also corrupt the CF Drive and the operating system. Symmetricom stopped > supporting these Jan 3rd of this year but they were able to send me a > replacement CF drive which is the weakest link in this system. > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com >

Hi All; I have owned a number of 5120A and 5125A analyzers and always backed up the CF. The route I chose was to purchase a U-Reach CF-121 duplicator for around $200. One of the best investments I have made. Cheers; Tom Knox SR Test and Measurement Engineer Phoenix Research 4870 Meredith Way Apt 102 Boulder, Co 80303 Formerly of: 357 Fox Lane Superior Co 80027 303-554-0307 actast@hotmail.com https://www.thedenverchannel.com/news/marshall-fire/superior-man-moving-forward-after-losing-dream-research-lab-during-marshall-fire "Peace is not the absence of violence, but the presence of Justice" Both MLK and Albert Einstein ________________________________ From: Jorge Gomez via time-nuts <time-nuts@lists.febo.com> Sent: Friday, August 4, 2023 7:55 AM To: Discussion of precise time and frequency measurement <time-nuts@lists.febo.com> Cc: Jorge Gomez <yoyigomez@gmail.com> Subject: [time-nuts] Re: Query about TSC5120A usage protocols Hi Bill, Can you share what software you use to back up the CF card? I unsuccessfully tried different ones. But after replacing the copy the machine does not boot. Thanks, Jorge. On Thu, Mar 23, 2023 at 9:38 PM WB6BNQ via time-nuts < time-nuts@lists.febo.com> wrote: > YES, > > BACK UP THE CF DRIVE SEVERAL TIMES AS A SAFETY PRECAUTION !!!! > > Bill, WB6BNQ > > > On 3/23/2023 4:25 PM, AC0XU (Jim) via time-nuts wrote: > > Time Nuts- > > > > I am in the process of purchasing a TSC5120A analyzer. The seller sent > me this note. Can anyone shed more light on this topic? Beyond the > precaution mentioned (e.g., plug it into a UPS), is there anything else I > can/should do to keep the unit working properly? > > > > Thanks! > > > > Jim > > > > > > =========================== > > Please note that the Symmetricom 5120As are VERY Sensitive when it comes > to powering the unit on and off. It is reccomended that they not be powered > off within at least a minute after storing and settings or else the CR > Drive and the operating system may be corrupted. It does NOT LIKE being > powering off unexpectedly due to power line issues as this may very well > also corrupt the CF Drive and the operating system. Symmetricom stopped > supporting these Jan 3rd of this year but they were able to send me a > replacement CF drive which is the weakest link in this system. > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com > _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com

Thanks Tom, That's exactly what I thought. And I bought one CF-121 duplicator as well. I tried yesterday but It does not seem to be able to read and copy the CF from the 5120. Any special settings you remember? I already set it up to copy the whole media (bit to bit regardless the format). Thanks Again, Jorge. On Fri, Aug 4, 2023 at 4:14 PM Tom Knox via time-nuts < time-nuts@lists.febo.com> wrote: > Hi All; > I have owned a number of 5120A and 5125A analyzers and always backed up > the CF. The route I chose was to purchase a U-Reach CF-121 duplicator for > around $200. One of the best investments I have made. > Cheers; > Tom Knox > SR Test and Measurement Engineer > Phoenix Research > 4870 Meredith Way Apt 102 > Boulder, Co 80303 > Formerly of: > 357 Fox Lane > Superior Co 80027 > 303-554-0307 > actast@hotmail.com > > > https://www.thedenverchannel.com/news/marshall-fire/superior-man-moving-forward-after-losing-dream-research-lab-during-marshall-fire > > "Peace is not the absence of violence, but the presence of Justice" Both > MLK and Albert Einstein > ________________________________ > From: Jorge Gomez via time-nuts <time-nuts@lists.febo.com> > Sent: Friday, August 4, 2023 7:55 AM > To: Discussion of precise time and frequency measurement < > time-nuts@lists.febo.com> > Cc: Jorge Gomez <yoyigomez@gmail.com> > Subject: [time-nuts] Re: Query about TSC5120A usage protocols > > Hi Bill, > Can you share what software you use to back up the CF card? > I unsuccessfully tried different ones. > But after replacing the copy the machine does not boot. > Thanks, > Jorge. > > > On Thu, Mar 23, 2023 at 9:38 PM WB6BNQ via time-nuts < > time-nuts@lists.febo.com> wrote: > > > YES, > > > > BACK UP THE CF DRIVE SEVERAL TIMES AS A SAFETY PRECAUTION !!!! > > > > Bill, WB6BNQ > > > > > > On 3/23/2023 4:25 PM, AC0XU (Jim) via time-nuts wrote: > > > Time Nuts- > > > > > > I am in the process of purchasing a TSC5120A analyzer. The seller sent > > me this note. Can anyone shed more light on this topic? Beyond the > > precaution mentioned (e.g., plug it into a UPS), is there anything else I > > can/should do to keep the unit working properly? > > > > > > Thanks! > > > > > > Jim > > > > > > > > > =========================== > > > Please note that the Symmetricom 5120As are VERY Sensitive when it > comes > > to powering the unit on and off. It is reccomended that they not be > powered > > off within at least a minute after storing and settings or else the CR > > Drive and the operating system may be corrupted. It does NOT LIKE being > > powering off unexpectedly due to power line issues as this may very well > > also corrupt the CF Drive and the operating system. Symmetricom stopped > > supporting these Jan 3rd of this year but they were able to send me a > > replacement CF drive which is the weakest link in this system. > > > _______________________________________________ > > > time-nuts mailing list -- time-nuts@lists.febo.com > > > To unsubscribe send an email to time-nuts-leave@lists.febo.com > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe send an email to time-nuts-leave@lists.febo.com > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com

The processor in the TSC-5120A is an embedded PC running a *nix OS -- IIRC, one of the BSD variants. I've used the standard "dd" tool on a Linux machine to image the TSC-5120A CF to a file, and then dd that back to another CF. It seemed to work fine. John ---- On 8/4/23 17:58, Jorge Gomez via time-nuts wrote: > Thanks Tom, > That's exactly what I thought. And I bought one CF-121 duplicator as well. > I tried yesterday but It does not seem to be able to read and copy the CF > from the 5120. > Any special settings you remember? > I already set it up to copy the whole media (bit to bit regardless the > format). > Thanks Again, > Jorge. > > On Fri, Aug 4, 2023 at 4:14 PM Tom Knox via time-nuts < > time-nuts@lists.febo.com> wrote: > >> Hi All; >> I have owned a number of 5120A and 5125A analyzers and always backed up >> the CF. The route I chose was to purchase a U-Reach CF-121 duplicator for >> around $200. One of the best investments I have made. >> Cheers; >> Tom Knox >> SR Test and Measurement Engineer >> Phoenix Research >> 4870 Meredith Way Apt 102 >> Boulder, Co 80303 >> Formerly of: >> 357 Fox Lane >> Superior Co 80027 >> 303-554-0307 >> actast@hotmail.com >> >> >> https://www.thedenverchannel.com/news/marshall-fire/superior-man-moving-forward-after-losing-dream-research-lab-during-marshall-fire >> >> "Peace is not the absence of violence, but the presence of Justice" Both >> MLK and Albert Einstein >> ________________________________ >> From: Jorge Gomez via time-nuts <time-nuts@lists.febo.com> >> Sent: Friday, August 4, 2023 7:55 AM >> To: Discussion of precise time and frequency measurement < >> time-nuts@lists.febo.com> >> Cc: Jorge Gomez <yoyigomez@gmail.com> >> Subject: [time-nuts] Re: Query about TSC5120A usage protocols >> >> Hi Bill, >> Can you share what software you use to back up the CF card? >> I unsuccessfully tried different ones. >> But after replacing the copy the machine does not boot. >> Thanks, >> Jorge. >> >> >> On Thu, Mar 23, 2023 at 9:38 PM WB6BNQ via time-nuts < >> time-nuts@lists.febo.com> wrote: >> >>> YES, >>> >>> BACK UP THE CF DRIVE SEVERAL TIMES AS A SAFETY PRECAUTION !!!! >>> >>> Bill, WB6BNQ >>> >>> >>> On 3/23/2023 4:25 PM, AC0XU (Jim) via time-nuts wrote: >>>> Time Nuts- >>>> >>>> I am in the process of purchasing a TSC5120A analyzer. The seller sent >>> me this note. Can anyone shed more light on this topic? Beyond the >>> precaution mentioned (e.g., plug it into a UPS), is there anything else I >>> can/should do to keep the unit working properly? >>>> >>>> Thanks! >>>> >>>> Jim >>>> >>>> >>>> =========================== >>>> Please note that the Symmetricom 5120As are VERY Sensitive when it >> comes >>> to powering the unit on and off. It is reccomended that they not be >> powered >>> off within at least a minute after storing and settings or else the CR >>> Drive and the operating system may be corrupted. It does NOT LIKE being >>> powering off unexpectedly due to power line issues as this may very well >>> also corrupt the CF Drive and the operating system. Symmetricom stopped >>> supporting these Jan 3rd of this year but they were able to send me a >>> replacement CF drive which is the weakest link in this system. >>>> _______________________________________________ >>>> time-nuts mailing list -- time-nuts@lists.febo.com >>>> To unsubscribe send an email to time-nuts-leave@lists.febo.com >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@lists.febo.com >>> To unsubscribe send an email to time-nuts-leave@lists.febo.com >>> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com >> To unsubscribe send an email to time-nuts-leave@lists.febo.com >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com >> To unsubscribe send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com

Hi Jorge; I did not have any problems - The U-Reach does a bit for bit copy. There are a number of settings, I wiped and formatted the new CF first, then used the copy and compare. I would go with a SLIGHTLY larger CF for the copy, I used Transcend CF300, I think the size was 4GB. Hope something here helps. Cheers; Tom Knox SR Test and Measurement Engineer Phoenix Research 4870 Meredith Way Apt 102 Boulder, Co 80303 Formerly of: 357 Fox Lane Superior Co 80027 303-554-0307 actast@hotmail.com https://www.thedenverchannel.com/news/marshall-fire/superior-man-moving-forward-after-losing-dream-research-lab-during-marshall-fire "Peace is not the absence of violence, but the presence of Justice" Both MLK and Albert Einstein ________________________________ From: Jorge Gomez via time-nuts <time-nuts@lists.febo.com> Sent: Friday, August 4, 2023 3:58 PM To: Discussion of precise time and frequency measurement <time-nuts@lists.febo.com> Cc: Jorge Gomez <yoyigomez@gmail.com> Subject: [time-nuts] Re: Query about TSC5120A usage protocols Thanks Tom, That's exactly what I thought. And I bought one CF-121 duplicator as well. I tried yesterday but It does not seem to be able to read and copy the CF from the 5120. Any special settings you remember? I already set it up to copy the whole media (bit to bit regardless the format). Thanks Again, Jorge. On Fri, Aug 4, 2023 at 4:14 PM Tom Knox via time-nuts < time-nuts@lists.febo.com> wrote: > Hi All; > I have owned a number of 5120A and 5125A analyzers and always backed up > the CF. The route I chose was to purchase a U-Reach CF-121 duplicator for > around $200. One of the best investments I have made. > Cheers; > Tom Knox > SR Test and Measurement Engineer > Phoenix Research > 4870 Meredith Way Apt 102 > Boulder, Co 80303 > Formerly of: > 357 Fox Lane > Superior Co 80027 > 303-554-0307 > actast@hotmail.com > > > https://www.thedenverchannel.com/news/marshall-fire/superior-man-moving-forward-after-losing-dream-research-lab-during-marshall-fire > > "Peace is not the absence of violence, but the presence of Justice" Both > MLK and Albert Einstein > ________________________________ > From: Jorge Gomez via time-nuts <time-nuts@lists.febo.com> > Sent: Friday, August 4, 2023 7:55 AM > To: Discussion of precise time and frequency measurement < > time-nuts@lists.febo.com> > Cc: Jorge Gomez <yoyigomez@gmail.com> > Subject: [time-nuts] Re: Query about TSC5120A usage protocols > > Hi Bill, > Can you share what software you use to back up the CF card? > I unsuccessfully tried different ones. > But after replacing the copy the machine does not boot. > Thanks, > Jorge. > > > On Thu, Mar 23, 2023 at 9:38 PM WB6BNQ via time-nuts < > time-nuts@lists.febo.com> wrote: > > > YES, > > > > BACK UP THE CF DRIVE SEVERAL TIMES AS A SAFETY PRECAUTION !!!! > > > > Bill, WB6BNQ > > > > > > On 3/23/2023 4:25 PM, AC0XU (Jim) via time-nuts wrote: > > > Time Nuts- > > > > > > I am in the process of purchasing a TSC5120A analyzer. The seller sent > > me this note. Can anyone shed more light on this topic? Beyond the > > precaution mentioned (e.g., plug it into a UPS), is there anything else I > > can/should do to keep the unit working properly? > > > > > > Thanks! > > > > > > Jim > > > > > > > > > =========================== > > > Please note that the Symmetricom 5120As are VERY Sensitive when it > comes > > to powering the unit on and off. It is reccomended that they not be > powered > > off within at least a minute after storing and settings or else the CR > > Drive and the operating system may be corrupted. It does NOT LIKE being > > powering off unexpectedly due to power line issues as this may very well > > also corrupt the CF Drive and the operating system. Symmetricom stopped > > supporting these Jan 3rd of this year but they were able to send me a > > replacement CF drive which is the weakest link in this system. > > > _______________________________________________ > > > time-nuts mailing list -- time-nuts@lists.febo.com > > > To unsubscribe send an email to time-nuts-leave@lists.febo.com > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe send an email to time-nuts-leave@lists.febo.com > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-leave@lists.febo.com

Hi Not based on the TCS5120, but on other devices from the same era … You can buy a pile of CF cards all of which are *supposed* to be identical in size (they all say 4GB …). First thing is, they have slightly different sizes. If the target is smaller (even by a few KB) that’s not a good thing. You can indeed find these details for most cards. Since outfits *do* change these specs from time to time, be sure to match up the numbers on the exact part you are buying. Next up, the structure / internals of the cards may not be the same. Good luck finding this documented anywhere. Indeed, ones you buy this week may be different than ones you buy a few weeks from now. I have empirical data on that …… same outfit, same labeling, same size, very subtle package difference. The first batch works, the second batch, not at all. Net result: “this card works” isn’t an “always” sort of thing. When you do the copy (depending on the copy technique), all the cards in the pile may copy fine. The copy process may not care that the target is to small, it just does what it can. It’s smart enough to deal with the various internal details on the cards. Go and plug the card into the device and … pow. Some of them work. Others don’t. Back to the giant pile to try another card. What’s going on? I can only guess that the early card interface hardware had some limitations. The newer generations are more flexible. It could also be the card drivers buried in the OS image on the cards that are being duplicated. I’ve never dug into that part of it. Bob > On Aug 5, 2023, at 12:51 AM, Tom Knox via time-nuts <time-nuts@lists.febo.com> wrote: > > Hi Jorge; > I did not have any problems - The U-Reach does a bit for bit copy. There are a number of settings, I wiped and formatted the new CF first, then used the copy and compare. I would go with a SLIGHTLY larger CF for the copy, I used Transcend CF300, I think the size was 4GB. > Hope something here helps. > Cheers; > Tom Knox > SR Test and Measurement Engineer > Phoenix Research > 4870 Meredith Way Apt 102 > Boulder, Co 80303 > Formerly of: > 357 Fox Lane > Superior Co 80027 > 303-554-0307 > actast@hotmail.com > > https://www.thedenverchannel.com/news/marshall-fire/superior-man-moving-forward-after-losing-dream-research-lab-during-marshall-fire > > "Peace is not the absence of violence, but the presence of Justice" Both MLK and Albert Einstein > ________________________________ > From: Jorge Gomez via time-nuts <time-nuts@lists.febo.com> > Sent: Friday, August 4, 2023 3:58 PM > To: Discussion of precise time and frequency measurement <time-nuts@lists.febo.com> > Cc: Jorge Gomez <yoyigomez@gmail.com> > Subject: [time-nuts] Re: Query about TSC5120A usage protocols > > Thanks Tom, > That's exactly what I thought. And I bought one CF-121 duplicator as well. > I tried yesterday but It does not seem to be able to read and copy the CF > from the 5120. > Any special settings you remember? > I already set it up to copy the whole media (bit to bit regardless the > format). > Thanks Again, > Jorge. > > On Fri, Aug 4, 2023 at 4:14 PM Tom Knox via time-nuts < > time-nuts@lists.febo.com> wrote: > >> Hi All; >> I have owned a number of 5120A and 5125A analyzers and always backed up >> the CF. The route I chose was to purchase a U-Reach CF-121 duplicator for >> around $200. One of the best investments I have made. >> Cheers; >> Tom Knox >> SR Test and Measurement Engineer >> Phoenix Research >> 4870 Meredith Way Apt 102 >> Boulder, Co 80303 >> Formerly of: >> 357 Fox Lane >> Superior Co 80027 >> 303-554-0307 >> actast@hotmail.com >> >> >> https://www.thedenverchannel.com/news/marshall-fire/superior-man-moving-forward-after-losing-dream-research-lab-during-marshall-fire >> >> "Peace is not the absence of violence, but the presence of Justice" Both >> MLK and Albert Einstein >> ________________________________ >> From: Jorge Gomez via time-nuts <time-nuts@lists.febo.com> >> Sent: Friday, August 4, 2023 7:55 AM >> To: Discussion of precise time and frequency measurement < >> time-nuts@lists.febo.com> >> Cc: Jorge Gomez <yoyigomez@gmail.com> >> Subject: [time-nuts] Re: Query about TSC5120A usage protocols >> >> Hi Bill, >> Can you share what software you use to back up the CF card? >> I unsuccessfully tried different ones. >> But after replacing the copy the machine does not boot. >> Thanks, >> Jorge. >> >> >> On Thu, Mar 23, 2023 at 9:38 PM WB6BNQ via time-nuts < >> time-nuts@lists.febo.com> wrote: >> >>> YES, >>> >>> BACK UP THE CF DRIVE SEVERAL TIMES AS A SAFETY PRECAUTION !!!! >>> >>> Bill, WB6BNQ >>> >>> >>> On 3/23/2023 4:25 PM, AC0XU (Jim) via time-nuts wrote: >>>> Time Nuts- >>>> >>>> I am in the process of purchasing a TSC5120A analyzer. The seller sent >>> me this note. Can anyone shed more light on this topic? Beyond the >>> precaution mentioned (e.g., plug it into a UPS), is there anything else I >>> can/should do to keep the unit working properly? >>>> >>>> Thanks! >>>> >>>> Jim >>>> >>>> >>>> =========================== >>>> Please note that the Symmetricom 5120As are VERY Sensitive when it >> comes >>> to powering the unit on and off. It is reccomended that they not be >> powered >>> off within at least a minute after storing and settings or else the CR >>> Drive and the operating system may be corrupted. It does NOT LIKE being >>> powering off unexpectedly due to power line issues as this may very well >>> also corrupt the CF Drive and the operating system. Symmetricom stopped >>> supporting these Jan 3rd of this year but they were able to send me a >>> replacement CF drive which is the weakest link in this system. >>>> _______________________________________________ >>>> time-nuts mailing list -- time-nuts@lists.febo.com >>>> To unsubscribe send an email to time-nuts-leave@lists.febo.com >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@lists.febo.com >>> To unsubscribe send an email to time-nuts-leave@lists.febo.com >>> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com >> To unsubscribe send an email to time-nuts-leave@lists.febo.com >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com >> To unsubscribe send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com