Data logging

Andre' Kesteloot andre.kesteloot@ieee.org
Mon, 21 May 2001 11:46:32 -0400


Brian Rogerson wrote:

> Dear All,
>
> Following the launch of two very powerful facilities in SpecLab namely:
>
> scheduled waterfall capture and scheduled export of Xcel compatible text files
>
> it is possible to automate a PC data logger to look at the band and to plot
> the peak amplitude of various signals in various bandwidths, the frequency
> of each of those peak amplitudes and the noise floor.  I have implemented
> such a trial scheme to look at DCF39, CFH, 136KHz, the TA slot and SXV.
> The intention is that my web pages should be updated around 0700utc
> each morning.  There is also a bonus, since Laurie G3AQC puts a very good
> signal into this location there is a slot at 135915 to 135927Hz which is
> automatically plotted, so if you want to try out your transmitter feel free,
> the period between points plotted is 90s so any transmission must exceed
> this several times to be useful.
>
> The URL for SpecLab is:http://www.qsl.net/dl4yhf/spectra1.html
>
> My sincere thanks to Wolf DL4YHF for all his help and patience.
>
> 73, Brian
>
>
>
> 73 Brian     CT1DRP     IN51QD     41 09 58N  08 39 11W
> http://homepage.esoterica.pt/~brian