[time-nuts] Re: Eloran long test from now to August or September.

[Bob Camp]

Hi

My point isn’t so much that it can’t be done. The point is that you are unlikely to find
a “stock” setup that does what you are after. You probably can’t just download this 
project from that GitHub and you have it all going. 

As mentioned in other posts, PHK did this all with a home brew SDR setup “way 
back when”. It certainly can be done with enough effort put into the project.

What would you likely want to do? That’s obviously going to have a number of
answers depending on this or that.  

Bob

> On Sep 25, 2023, at 5:30 AM, Jürgen Appel via time-nuts <time-nuts at lists.febo.com> wrote:
> 
> Hej Bob,
> 
> On Sunday, 24 September 2023 18:38:34 CEST Bob Camp via time-nuts wrote:
> 
>> Hi
>> 
>> The issue with doing this with a low cost SDR board is not so much receiving
>> / demodulating the signal. It’s a pretty good bet somebody out there has
>> been there / done that. The issue is pulling an accurate “time pulse” out
>> of your typical SDR setup.  This is a  somewhat unusual thing to want to
>> do. Finding a “stock” setup on a low cost board that does this will be a
>> bit of a challenge. 
>> Bob
> 
> Not that I have any experience in (E)Loran, but what about generating a time 
> signal yourself and adding it to the RF input (in the most basic realization 
> by simply pulsing off or AM modulating the RF input with an RF-switch, or 
> slightly more sophisticated by adding a micro-controller generated PRN-time-
> code)? Then you you could recover the time-stamp from your recorded, de-
> modulated data.
> 
> Cheers, 
> 	Jürgen
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