In addition to nonlinear issues with output amplifiers, filters have
poor performance when improperly terminated. This can lead to harmonic
distortion and that can be a problem. You want the duty cycle to be
exactly 50%. See:https://tf.boulder.nist.gov/general/pdf/1437.pdf
--
Bill Byrom N5BB
David Van Horn,
You're on the right track, but what would you do about those pesky leap
seconds?
Dana
On Fri, Sep 28, 2018 at 2:48 PM Artek Manuals
wrote:
> H Farce-Book hadn't considered that approach .. some sort
> of (ready for this )
>
> "subliminal millennial mind control"
H Farce-Book hadn't considered that approach .. some sort
of (ready for this )
"subliminal millennial mind control" !!
The gnomes and I will go to work on it immediately !
-DC
On 9/28/2018 3:11 PM, David Van Horn wrote:
By expanding facebook significantly, I plan to keep the
By expanding facebook significantly, I plan to keep the millennials occupied in
such a way that they are peaceful, happy, and complacent.
Ad revenues could support the whole program.
Solid state electronics seems to be something we will need to tolerate, but we
can require tubes to be allowed
David
1) Before I make a donation what is your plan to control the millennial's ?
2) Could we outlaw solid state electronics (or at least custom IC's) and
go back to vacuum tubes while we are at
Dave
On 9/28/2018 1:53 PM, Martin VE3OAT wrote:
I love GMT. All of this UTC stuff is ...
I'm trying to interpret the Data output from my recently resurrected
Shera GPSDO. now with the last version of the PIC firmware.
The first block is the Phase difference, and the second the DAC value,
that I understand. The third block has five digits; what I don't get
nor can find anything
This is assuming that your oscilloscope is set at 100 nS/DIV. My Tek 2465A
will sweep at 5 nS/DIV normally, and 500 pS/DIV when the sweep is set to X10.
If I'm figuring correctly, this will allow 1e-12 in 432 seconds. I use a stop
watch to time the zero crossings of the sine wave - something
I love GMT. All of this UTC stuff is ... revisionist!
My cheque is in the mail.
... MartinVE3OAT
David Van Horn wrote :
>
> When I am global dictator, we will all run on GMT and all time
> zones, summer time, DST and similar nonsense will be abolished.
>
> I am accepting campaign donations!
When I am global dictator, we will all run on GMT and all time zones, summer
time, DST and similar nonsense will be abolished.
I am accepting campaign donations!
-Original Message-
From: time-nuts On Behalf Of Hal Murray
Sent: Friday, September 28, 2018 2:59 AM
To:
Hi,
There is one other issue that can bite you if you fail to properly
terminate the output of a source:
Depending on the source's design, an essentially unloaded output
can have a substantially higher voltage swing than expected (by
2X if the source impedance is actually 50 ohms), possibly
On 9/28/18 6:16 AM, Eric Scace wrote:
Which, if I recall correctly, was the system used in Japan immediately before
the adoption of Western time methods. Each day’s interval between
sunrise-sunset was divided into a six units… so, in comparison with an absolute
scale, the absolute duration of
Also the ancient Egyptians through to the Romans; See:
https://en.wikipedia.org/wiki/12-hour_clock#History_and_use
On Fri, 28 Sep 2018 at 14:17, Eric Scace wrote:
>
> Which, if I recall correctly, was the system used in Japan immediately
before the adoption of Western time methods. Each
Which, if I recall correctly, was the system used in Japan immediately before
the adoption of Western time methods. Each day’s interval between
sunrise-sunset was divided into a six units… so, in comparison with an absolute
scale, the absolute duration of each unit of time varied from day to
On Thu, Sep 27, 2018, at 11:55 AM, Dave B via time-nuts wrote:
> Triggering a dual beam 'scope (Tek 465) from the TB on Ch1, and having> the
> output of the OCXO on Ch2, the resulting display on Ch2 of course> drifts in
> relation to the static waveform on Ch1. (Both nice
> sinusoids.)
The Tek
This works for me:
1. 10 Mhz to be measured input to vertical channel
2. Standard input to ext trig.
3. Set scope for 10 ns per div. (1 cycle of 10 Mhz will fill up whole
screen)
4 Time the time it takes for trace to move 1 div. (not the whole cycle -
just one of its sides.)
5. Divide these
https://xkcd.com/2050/
A new meaning for rubber seconds.
--
These are my opinions. I hate spam.
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