Said,
Your drawing looks better than those by Bob Pease, and he was never
embarrassed by his :)
Thank you for your extensive contributions to time nuts
Didier KO4BB
On Tue, Nov 25, 2014 at 7:28 PM, S. Jackson via time-nuts
time-nuts@febo.com wrote:
Guys,
I never expected such an intense
:)
Sent From iPhone
On Nov 26, 2014, at 9:20, Didier Juges shali...@gmail.com wrote:
Said,
Your drawing looks better than those by Bob Pease, and he was never
embarrassed by his :)
Thank you for your extensive contributions to time nuts
Didier KO4BB
On Tue, Nov 25, 2014 at 7:28
Interesting comment. . . . I'm reading Bob's book now!
Never met him, but felt like I knew him from all of his writings.
His death was very sad
Jim
wb4...@amsat.org
On 11/26/2014 12:20 PM, Didier Juges wrote:
Said,
Your drawing looks better than those byBob Pease, and he was never
Jim,
A double tragedy. I was working with Jim Williams on one of our designs a week
before he passed away. Then Bob crashed his car coming from Jim's funeral
(grief?) and died too.
Two of the greatest analog minds lost within days.
Bye,
Said
Sent From iPhone
On Nov 26, 2014, at 9:34, Jim
Didier:
Please DO share. Thanks!
Jim
On 11/25/2014 7:47 PM, Didier Juges wrote:
Jim,
I have somewhere a piece of VB 6.0 code that decodes NMEA sentences and puts it
pretty on the screen (at least that's how I remember it :). I am not at home at
the moment but I'll be glad to send it to you
On 25 November 2014 at 19:51, S. Jackson via time-nuts
time-nuts@febo.com wrote:
Jim,
please remember you need proper lightning protection if you put the antenna
outside..
bye,
Said
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe,
yes please!
Don
On Nov 26, 2014, at 11:45 AM, Jim Sanford wb4...@wb4gcs.org wrote:
Didier:
Please DO share. Thanks!
Jim
On 11/25/2014 7:47 PM, Didier Juges wrote:
Jim,
I have somewhere a piece of VB 6.0 code that decodes NMEA sentences and puts
it pretty on the screen (at least
I have one of the LTE-Lite 20Mhz units and plan to use it as a frequency
reference for my ham radio gear. My planned setup is as follows:
I'm putting it in the recommended Hammond enclosure powered by a USB cable
from my PC. I had originally planned to use the wall wart provided but I
want to get
Jim,
please remember you need proper lightning protection if you put the antenna
outside..
bye,
Said
In a message dated 11/25/2014 11:43:09 Pacific Standard Time, jim@jtmil
ler.com writes:
I have one of the LTE-Lite 20Mhz units and plan to use it as a frequency
reference for my ham
Jim
Because of the short runs you should be quite fine with your approach. I
used the 74HC version to do my dividing using the second section to get 5
MHz. Lots of gear still uses that.
Frankly ublox and such don't show you much and I am using PUTTY.
There is another pgm from India but shows much
On 25 November 2014 at 19:42, Jim Miller j...@jtmiller.com wrote:
I'm putting it in the recommended Hammond enclosure powered by a USB cable
from my PC. I had originally planned to use the wall wart provided but I
want to get status from the unit without hacking a window in the top to see
the
Jim,
I have somewhere a piece of VB 6.0 code that decodes NMEA sentences and puts it
pretty on the screen (at least that's how I remember it :). I am not at home at
the moment but I'll be glad to send it to you if you are interested. May not do
what you want, but it will get you started.
Guys,
I never expected such an intense discussion about using and buffering the
outputs from the LTE-Lite board since the actual circuit to use can be
quite simple.
To address these questions, I drew up a simple schematic that uses a DIP-14
74AC04 gate, six resistors, and two caps.
Hi
If you decide to run the circuit from +5V, get the 74ACT04 instead of the
74AC04. It will trigger better on the 3.3V output from the LTE.
The 74AC(T)04 will not in any way impact the phase noise or ADEV coming out of
the LTE, if a reasonable supply is used…
With a decent PCB layout and
Hi Mark, Bob,
two comments:
* I forgot to mention that feeding the 1PPS signal through the IC inverts
the signal of course, so the falling edge becomes the active edge. Use the
two inverters in series rather than parallel to avoid that problem, at the
cost of lower drive capability and
Hi
One simple point:
Do you *need* ultra low phase noise on your 1 pps output or is real good ADEV
all you are after?
If you need good phase noise .. exactly what are you doing ???
So… tack a 78L05 onto your bulk power and run the pps output “empire” off of
that supply. Maybe wire the 1 pps
Bob,
Its not the 1PPS that would be suffering, its the 10MHz that will have all the
1Hz and its harmonics making the PN graph look ugly..
Agree with you that the regulators cost zip these days and using individual
buffer ICs and regs is the best way to go.
Bye,
Said
Sent From iPhone
On Nov
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