Does anyone have a dead 58503 (inop for whatever reason) with working option
001 display/keypad that they would like to sell or trade? I need only the
display board, or snap on display panel. Of so, please contact me off line,
telephone would be best. 73 de Lon, K5JV 281-795-1335
Does anyone have a dead (inop) HP58503
[4f748b4a-71bd-426d-a8f7-713b80407d03]
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Do you mean "even submultiples"? ie. even division ratios.
Andy
www.g4jnt.com
On Sat, 28 May 2022 at 21:11, Matthias Welwarsky via time-nuts <
time-nuts@lists.febo.com> wrote:
> Hi Rich,
>
> Only frequencies that are even multiples of the internal crystal frequency
> (48MHz) are "clean".
Yes, we did,
and learned, that the device -- the ublox6 -- forgets the the program
very fast, thus we added one arduino, which loads the program into the
ublox at every new turn on. By using low output frequency -- 10kHz --
the jitter is low, at higher output frequency the jitter is getting
Hi Rich,
I'm using a LEA-M8T in a GPSDO project. I've gathered a bit of experience with
the M8 timing receivers over the past two or three years.
Both timepulse outputs can be programmed to any frequency and duty cycle you
like, 10kHz is certainly not a problem. However, some things to
These types of devices have been around so long they can
be found in labs wearing the hp badge. Their uselessness
40 years ago compelled me to invent the workarounds in the copper
mountain ap note.
Rick N6RK
Keysight retiree, 2014.
On 5/26/2022 12:51 PM, Brooke Clarke via time-nuts wrote:
Hi
This was already SOP for any knowledgeable RF engineer by the
1940's. Somewhere I have a copy of Dishal's paper. I worked
for Zeta Labs in the 1970's and we sold lots of microwave filters
that were tuned this way. We didn't even have VNA's at Zeta.
We just used a directional detector (diode
On 5/26/2022 10:24 AM, Lux, Jim wrote:
https://www.mwrf.com/technologies/test-measurement/article/21849791/copper-mountain-technologies-make-accurate-impedance-measurements-using-a-vna
describes the various approaches
I don't know how long these methods have been in use, but I
Hi
There are a number of threads on the uBlox receivers.
Quick summary: All of the outputs from the typical examples are run
with a “drop a pulse / add a pulse” approach to steer them to the
correct frequency. If you are after a “clean” output for some sort of
gear (like a synthesizer) … not
Rich, stand by. I've been doing a *lot* of testing with higher-speed
pulserates on the u-blox F9T/M8T/M9N (as high as 20+ MHz) and will be
ready to report some results in a week or two, I hope. There are some
interesting findings.
And that testing underlies a new TAPR project I'm working
Has anyone done anything with the Ublox GPS timing receivers? As it appears the
Navman with the 10khz outputs seem to be drying up, I'm wondering about the
Time Pulse 2 output being set to 10 Khz or 100 Khz. Thoughts anyone?
Rich
W9ENG
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time-nuts
Thanks Bob,
It is indeed planned to give the user the option to have either
frequency stability of phase stability and adapt the PLL parameters
accordingly
I still need to learn a lot before I can write the "couple dozen pages"
Erik.
On 28-5-2022 6:54, Bob kb8tq wrote:
Hi
What is the
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