Do you happen to know what's wrong with the PS? If you can figure this
out, you can probably fix it. AFAIK the DC-DC converters are still
commodity parts, under a number of brands, so the easiest is if one of
those crapped out. If the problem is in the "other" stuff, you'd need
some reverse
Paul, Thanks for the thought. This Z3801A chassis already has an
analog supply built in to drive 50 volt internal supply.
That is why I am looking for the original . Again, thanks for the
thought and 73 de Lon, k5jv.
On Thu, May 5, 2022 at 1:13 PM paul swed wrote:
>
> Lon just in case they
Lon just in case they don't you can map modern switchers into the position.
I used Vicors when mine went. They were laying around.
Paul
WB8TSL
On Thu, May 5, 2022 at 12:15 PM Lon Cottingham
wrote:
> Does anyone happen to have an extra original, internal, 50 volt power,
> supply for a Z3801A?
Hi,
Could not agree more on this point.
It's even to the point we have two standards for it, the IEEE Std 1139
for the basic measures and noises, and then IEEE Std 1193 for the
"environmentals", or rather, the rest.
Both is being revisioned and 1139 just went out for re-balloting process
On Wed, 04 May 2022 17:07:03 -0700
Hal Murray wrote:
> What sort of times and memory are interesting?
A lot of times! :-P
I think last time I generated them I had to run them on a machine with 256GB
RAM.
So... probably 200G of data?
> You can rent a cloud server with a few hundred gigabytes
I am trying return to service a 58503A with option 001 display. The
motherboard is physically damaged beyond repair. I have two identical
motherboards, with id and update info, exactly the same as the original board.
However, neither will support the 001 optional display. Apparently, I need
Does anyone happen to have an extra original, internal, 50 volt power, supply
for a Z3801A? Is so, and you will part with it, please contact me by direct
email or phone.
73 de Lon, K5JV
281-795-1335
[3f873278-e972-41bd-8708-c76706ab202a]
___
Good news a test of eLoran in the US. 10-13. Tuesday mid morning to Friday
mid day. GRI 5990 M Y data 9th bit.
Bad news. Washington state transmitter. East coast will be quite a
challenge if at all. But I will at least see if I can hear anything at
night.
Good luck and at least for the West coast
Dear all who responded – thank you for everything I’m learning from you.
Gerhard, thanks for flagging your alternative implementation, especially the
gateware. I’m not yet acquainted with FPGAs but it is still useful to read and
generous of you to share.
Tom, thanks. I do hope that you are
André
I've completed a comparison between simulation and measurement.
In the simulation [1] you see the GPSDO ADEV pushed below the OCXO and
PPS ADEV around the intersection of the PPS ADEV with the OCXO ADEV.
In an actual measurement [2] with identical controller and controller
parameters I
10 matches
Mail list logo
