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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Satellite Meters and Installation Equipment
Using the "138MHz-4.4GHz USB SMA Source/Signal Generator/Simple Spectrum Analyzer" for TV/CATV/SAT
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<blockquote data-quote="vma" data-source="post: 995944" data-attributes="member: 256592"><p>The biggest enhancement made to this last version is the fact that not only is it possible to log/record the entire spectrum continuously, it is actually recorded with time stamp and GPS location, too.</p><p>You can then play-back the spectrum and see the relevant time stamps and GPS location. This alone is interesting, but what I consider innovative is that you can, during LIVE mode or PLAY mode capture a frequency log, which will inherit the GPS position. This log can then be displayed on Google Maps, showing measurements as colour codes. No doubt, this is unique.</p><p></p><p>Imagine you want to monitor 2 (3, 4 or whatever amount) transponders on the go, for instance to evaluate the reception of a given transpoder (FM radio, DAB, DVB-T, whatever): just setup your car, drive around capturing the WHOLE spectrum and then produce a report with Google Maps on the desired frequencies!</p><p></p><p>You would have to pay A LOT of cash to get anything vaguely similar to this...</p><p></p><p>Next I plan to implement a TRIGGER functionality, so that an alarm (beep, log entry or e-mail) is issued, when a given transponder is below or over a set treshold. Of course I am not going the easy route of having a treshold set in text boxes for a single frequency.</p><p></p><p>Modern spectrum analysers allow drawing line segments to set the treshold, but I want to do it in a different manner: the user actually provides a bitmap with three colours: one colour for the upper treshold, one colour for the lower threshold and a third colour for acceptable signal power. This bitmap is then imported as a trigger overlay. The bitmap can be edited in any drawing application like Paint, using a template provided by my software.</p><p></p><p>This is all in my head, still, but will be my next development, if all goes well (aka: no claims can be made if I don't do it).</p><p></p><p>Regards,</p><p>vma</p></blockquote><p></p>
[QUOTE="vma, post: 995944, member: 256592"] The biggest enhancement made to this last version is the fact that not only is it possible to log/record the entire spectrum continuously, it is actually recorded with time stamp and GPS location, too. You can then play-back the spectrum and see the relevant time stamps and GPS location. This alone is interesting, but what I consider innovative is that you can, during LIVE mode or PLAY mode capture a frequency log, which will inherit the GPS position. This log can then be displayed on Google Maps, showing measurements as colour codes. No doubt, this is unique. Imagine you want to monitor 2 (3, 4 or whatever amount) transponders on the go, for instance to evaluate the reception of a given transpoder (FM radio, DAB, DVB-T, whatever): just setup your car, drive around capturing the WHOLE spectrum and then produce a report with Google Maps on the desired frequencies! You would have to pay A LOT of cash to get anything vaguely similar to this... Next I plan to implement a TRIGGER functionality, so that an alarm (beep, log entry or e-mail) is issued, when a given transponder is below or over a set treshold. Of course I am not going the easy route of having a treshold set in text boxes for a single frequency. Modern spectrum analysers allow drawing line segments to set the treshold, but I want to do it in a different manner: the user actually provides a bitmap with three colours: one colour for the upper treshold, one colour for the lower threshold and a third colour for acceptable signal power. This bitmap is then imported as a trigger overlay. The bitmap can be edited in any drawing application like Paint, using a template provided by my software. This is all in my head, still, but will be my next development, if all goes well (aka: no claims can be made if I don't do it). Regards, vma [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Satellite Meters and Installation Equipment
Using the "138MHz-4.4GHz USB SMA Source/Signal Generator/Simple Spectrum Analyzer" for TV/CATV/SAT
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