Have you looked at the blitzortung.org system?
There may be some ideas to glean from that
On July 28, 2016 6:12:54 PM CDT, Jerome Blaha
wrote:
>Hi Guys,
>
>This is a little outside of time-nuts scope, but not by much. I'm
>interested in finding the time between two rising edges above a set
>th
Hi Jerome,
This may or may not be of any help, but have you considered using several
RTL-SDR devices running at the same time? You'd need to use a common clock,
and probably a number of other enhancements. But, if you could pull it off,
you'd have a wideband RDF type of device. You'd probably
On Fri, 29 Jul 2016 09:23:02 -0700
Chris Albertson wrote:
> Sounds like you want to build something rather then use some
> instruments you can buy. I've thought a little about this too as I
> want to make a LIDAR to measure distance using a laser pulse. In my
> case I want both low cost and fo
Hi Jerome:
The Vietnam era Radar Warning Systems used 4 wide band antennas (nose, tail & wing tips) and displayed the bearing,
rough distance & threat type on a CRT.
Near the antenna was a crystal video receiver using a multi channel filter driving Schottky diode detectors. The output
from eac
Sounds like you want to build something rather then use some
instruments you can buy. I've thought a little about this too as I
want to make a LIDAR to measure distance using a laser pulse. In my
case I want both low cost and for the device to be very small and
light and run off a battery
I thi
May be some more accurate alternative to AD8302 could do that. AD8302
could measure Gain/Loss and Phase up to 2.7 GHz. I using one in my
project and its doing its job right (I think).
On 2016-07-28 19:12, Jerome Blaha wrote:
Hi Guys,
This is a little outside of time-nuts scope, but not by
On Thu, 28 Jul 2016 23:12:54 +
Jerome Blaha wrote:
> Hi Guys,
>
> This is a little outside of time-nuts scope, but not by much.
> I'm interested in finding the time between two rising edges above a set
> threshold with preferably nS or high ps timing accuracy. Can this be simply
> done wi
Taking a look for it also turned up a recent time-nuts thread
https://www.febo.com/pipermail/time-nuts/2016-May/097801.html
On Thursday, 28 July 2016, Scott Stobbe wrote:
> There was a pic app note on alternate uses for the cap sense block a while
> back, not sure it that it will push you into
Hi
If you have a need to do < 1 ns with a counter approach, the counter will need
to have a GHz clock in it. If you want to use an MCU counter, it will need to
have a GHz level clock routed to it. You are unlikely to find an MCU that will
do that. An FPGA can get you to 1.25 ns with direct coun
There was a pic app note on alternate uses for the cap sense block a while
back, not sure it that it will push you into the ps.
On Thursday, 28 July 2016, Jerome Blaha wrote:
> Hi Guys,
>
> This is a little outside of time-nuts scope, but not by much. I'm
> interested in finding the time betwee
Hi Guys,
This is a little outside of time-nuts scope, but not by much. I'm interested
in finding the time between two rising edges above a set threshold with
preferably nS or high ps timing accuracy. Can this be simply done with a few
programmed Microchip PICs or with a good short term OCXO c
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