Re: [time-nuts] Symmetricom analog network clocks.

2020-03-26 Thread Esa Heikkinen

djl kirjoitti 25.3.2020 klo 2:46:

turn in both directions(use your thumb.) After all, it was no good as 
is. I guess the grease was redistributed, as both clocks now function 
properly. They do have to be set using the software sort of often, but 
sure look classy :-). No wonder we got them so cheap!


Root cause in my unit was that rotor was hitting stator and caused 
random "jams". The rotor was mounted off-center and got contact with 
stator. I was able to bend the motor frame so that rotor was properly 
centered.


No problems aftert that, now it has been running many years after that 
fix without any issues. At the same opening I also converted it to PoE 
powered, so only one cable now. It's 15V system but runs perfectly with 
12V also.


Very nice wallclock indeed!

--
73s!
Esa
OH4KJU

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Re: [time-nuts] Fake new LPRO 101 Rb's on Ebay?

2020-02-03 Thread Esa Heikkinen

Perry Sandeen via time-nuts kirjoitti 4.2.2020 klo 9:29:


In all
seriousness, can the coronavirus be transmitted in gear we buy from
China or does it require a living host for spreading?


Get an ozone generator and put the contaminated gear to some closed 
comparment with it. Turn on the generator and let it be for 15 minutes. 
No more any viruses, bacteria or mold there... so it's easy!


--
73s!
Esa
OH4KJU

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Re: [time-nuts] Garmin GPS12XL V3.51

2019-04-08 Thread Esa Heikkinen

course, came up with an August 1999 date.  A quick "Google" found that
someone is hosting a zipped Windows executable (apparently originally from
Garmin) that you run when the satnav is connected to your PC via a serial
cable, and it corrects whatever internally so that the date is reported
correctly.  Works like an absolute charm!  The program doesn't say it is


Amazing! Now my GPS12 shows correct date again! Time is still not 
exactly synced, but inside same second. Maybe it's display issue; too 
slow rerfresh rate for accurate seconds.


My GPS12 was unused many years and had lost all settings. Last time I 
used it in geocaching because it seems to perform better than smartphone 
GPS in some difficult places like in forest.


--
73s!
Esa
OH4KJU

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Re: [time-nuts] Symmetricom TS2100 Faults and Forgetfulness

2018-12-06 Thread Esa Heikkinen

Chris Quayle kirjoitti 6.12.2018 klo 2:13:


Eeprom dump included. If another member has one of these, do
these values look sane ?. No idea of function though...


I think IP address or display settings cannot be stored to that EEPROM, 
it contains oscillator steering parameters etc. That is because this 
EEPROM is write protected by jumper JP4, so any user settings cannot be 
there. You only need to edit the EEPROM content if you change to 
different oscillator. To do any changes there JP4 must be shorted to 
enable writing.


From my TS2100 I have stored two EEPROM dumps:

With original TXCO:
0e 5b 45 4b 00 00 00 46
31 30 34 30 38 30 37 39
00 00 00 00 00 00 00 00
00 a0 6e 04 1f d3 56 43
58 4f 00 00 00 00 00 00
00 00 00 00 00 00 ff ff
ff eb 00 00 00 02 3f 73
33 33 00 04 00 00 00 00
00 24 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00

After upgrading MTI OCXO:
a5 73 9b 52 00 00 00 46
31 30 34 30 38 30 37 39
00 00 00 00 00 00 00 00
00 a0 6e 04 1f d3 56 43
58 4f 00 00 00 00 00 00
00 00 00 00 00 00 ff ff
ff eb ff ff ff ec 3f 7f
df 3b 00 04 00 00 00 00
00 24 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00

So there must be some other place to store the user data. I would look 
if there's more EEPROMs on the board and does they have write protect 
jumpers also. Erratic jumper setting there could prevent storing any 
changes. It may also be faulty eeprom.


--
73s!
Esa
OH4KJU

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