Le 23 déc. 2014 à 01:41, Ryan Stasel rsta...@uoregon.edu a écrit :
Ed,
Not 100% sure this is the same model, but it would seem to indicate there's a
PPS signal on the DCD pin (from the gpsd-users list circa 2007):
http://marc.info/?l=gpsd-usersm=118340900010559w=2
Have a 'scope to
There is no need for a transformer here. Yes you want isolation but
an optocoupler in a 8-pin DIP package can do that job better.
You can reduce the 120 VAC volts down to anything you like by clipping
it with diodes then send the clipped AC to the coupler and
The usual method if edge dietitian
Hi,
I got a used HP 53131A to which I added a stability option board (ocxo).
In order to calibrate the device, a security code is needed - I don't
know it. The seller doesn't know it. It's not the facorty set code.
Advice on how the reset the non-volatile memory would be much appreciated.
Ulli,
You're right. The actual procedure is not described in the manual(s):
Operating Guide
http://cp.literature.agilent.com/litweb/pdf/53131-90055.pdf
Programming Guide
http://cp.literature.agilent.com/litweb/pdf/53131-90044.pdf
Assembly-Level Service Guide
Hi
I believe you will find that when you do the cal it will ask you:
Security yes/no?
(answer yes)
Enter your key?
(enter a random number)
Enter your key again?
(re-enter random number)
Security enabled.
No, that is not a direct quote of what happens. It’s purely a guess based on
the
Is there some reason you cannot just ask Agilent ??
73 es HH, Dick, W1KSZ
On 12/23/2014 6:34 PM, Tom Van Baak wrote:
Ulli,
You're right. The actual procedure is not described in the manual(s):
Operating Guide
http://cp.literature.agilent.com/litweb/pdf/53131-90055.pdf
Programming Guide
Well, it's Christmas - may be there it will be nobody during the next
couple of days being able to answer the question...
I got a now gizmo which I want you learn asap...
That's why I'm asking here.
Ulli
Am 24.12.2014 um 02:55 schrieb Richard Solomon:
Is there some reason you cannot just ask
Hi Bob,
to enter calibration the bottom Scale Offset is to be pressed during
power on.
In my case, CAL SECURE is displayed and after the next push on Scale
Offset the display reads: CODE:0.
Using left arrow it makes up to 7 zeros to appear... - quite a lot of
options to try it
I'm the seller. The counters, as a matter of interest, came from the
factory that Rakon recently closed in Lincoln. Unfortunately there wasn't
any contact with the actual staff so I have no information about them.
I bought 3, kept one for myself - the only one with the MS option. I
haven't tried
It's Alive!!!
The MGPS module was saying there was an A-to-D fault
and a Feedline fault. Suspicious of the common element,
I traced the signal path from the GPS antenna connector
to the input of the ADC, and it was a straight DC path.
Sure, there were a few chokes, and capacitors to ground
to
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