For GA (what I have handy right now): The good old Garmin 400 series: VOR/LOC:-103.5dBm, GS:-87dBm Avidyne (EntegraII): VOR: 5uV, LOC and GS: 10uV
www.repeater-builder.com/measuring-*sensitivity*/*dbm*2uv.pdf /for conversion table!/The Avidyne is TSO minimums if I remember correctly. Their units tend to depend on GPS (and thus do not care much for radio navigation).
Airline stuff goes down to like 0.5uV (so much more sensitive and expensive). They can receive a VOR signal at FL300 at quasi-optical range!
Above values are all 'hard' values (like yours), so measured with a 6dB loss between the test unit and the Nav unit. If you look at specs from a European manufacturer: they usually leave out the 6dB loss!
Antenna cable losses have to be added for in airplane performance (and they are usually significant).
Eric On 11/25/2011 03:49 AM, Adrian Musceac wrote:
Hi there, I'm about to start implementing navradio signal propagation, and I'd like to know from anyone who has experience with this type of radios whether this spec sheet performance is typical for most receivers including airline big iron, so that I should hardcode or not the values. https://www.bendixking.com/wingman/servlet/com.merx.npoint.servlets.DocumentServlet?docid=doc689082ce- f7ddb4bf1a-762df96555eb2dc6f382507bde7144eb The meaningful quoted figures for sensitivity are: VOR/LOC - 2 uV for half flag, 1 uV typical Glideslope - 12 uV typical, 20 uV for half flag Cheers, Adrian ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-novd2d _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-novd2d
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