40 to 100 microF electrolytic will work.
On Mon, 30 Sep 2019 12:21:06 +1000, Neville Michie wrote:
>If you have a square wave at .5PPS and you connect a large series capacitor to
>the coil of a quartz clock
>(less battery) you get alternating seconds pulses drive to an analogue dial.
>50 ohms
If you have a square wave at .5PPS and you connect a large series capacitor to
the coil of a quartz clock
(less battery) you get alternating seconds pulses drive to an analogue dial.
50 ohms will easily drive the about 1k coil.
Cheap quartz clocks make good slaves.
cheers,
Neville Michie
> On 29
OPTIONAL 1 PP2S OUTPUT
(EVEN-SECOND OUTPUT)
An even-second (1 PP2S) output is
available as an option to the 58503B.
The even-second output option
provides one pulse every other second,
synchronized to the even seconds in
GPS time. This is the reference time
used in CDMA base stations. GPS
I believe it's a CDMA thing. I have a Nortel GPSTM that came out of CDMA site.
It has the same thing.
---
(Mr.) Taka Kamiya
KB4EMF / ex JF2DKG
On Sunday, September 29, 2019, 9:36:55 AM EDT, Gregory Beat via time-nuts
wrote:
A new resident
To replace one?
On 2019-09-29 10:22, paul swed wrote:
On second thought (Pun intended)
Its a pendulum clock output. Have no idea why some one would use a
GPSDO to
drive a pendulum clock but that could be a reason for such a thing.
Paul
On Sun, Sep 29, 2019 at 12:02 PM Dana Whitlow
wrote:
I seem to recall there was a telecom application for a pulse per even second
output. Maybe for certain CDMA base stations ?
Mark S
m...@alignedsolutions.com
604 762 4099
> On Sep 29, 2019, at 5:56 AM, Gregory Beat via time-nuts
> wrote:
>
> A new resident arrived at the “Time Cave” this
On second thought (Pun intended)
Its a pendulum clock output. Have no idea why some one would use a GPSDO to
drive a pendulum clock but that could be a reason for such a thing.
Paul
On Sun, Sep 29, 2019 at 12:02 PM Dana Whitlow wrote:
> I can't speak for 1/2PPS, but at the Arecibo Observatory
Impulse stepper clocks. Though I will say a bit odd in that normally there
are two outputs.
Essentially even odd seconds across the stepper motor.
Regards
Paul
On Sun, Sep 29, 2019 at 9:36 AM Gregory Beat via time-nuts <
time-nuts@lists.febo.com> wrote:
> A new resident arrived at the “Time
I can't speak for 1/2PPS, but at the Arecibo Observatory we distributed
1PPS with every
10th second's pulse stretched to about twice the duration of the others. I
did find that to
be kind of handy every now and then, when troubleshooting things.
Dana
On Sun, Sep 29, 2019 at 8:36 AM Gregory
A new resident arrived at the “Time Cave” this weekend, the HP/Symmetricom
58503B. Just the plain front panel (4 LEDs) model, without Option 1 (VFD clock
display).
Acquired in USA, cheaper than current Asian exporter.
https://accusrc.com/uploads/datasheets/4975_58503b.pdf
Supposedly stored in
10 matches
Mail list logo
