Pathloss 4.0 revision history - Revision history

Chrisg at 17:21, 7 December 2016

2016-12-07T17:21:42Z

2016-12-07T17:19:46Z

2014-03-04T19:41:56Z

2012-02-07T22:31:15Z

2011-06-27T19:15:37Z

2011-02-21T18:39:30Z

2011-01-04T22:42:03Z

2010-12-10T19:15:09Z

2010-12-09T17:38:32Z

2010-11-20T00:05:55Z

‎Pathloss 4.0 - Build date September 20, 2010

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 == Pathloss 4XS - Build date August 4, 2015 ==
 == Pathloss 4XS - Build date January 1, 2015 ==
 == Pathloss 4.0 - Build date March 4, 2014 ==

← Older revision		Revision as of 17:19, 7 December 2016
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		+	== Pathloss 4XS - Build date August 4, 2015 ==
		+
		+	== Pathloss 4XS - Build date January 1, 2015 ==
		+
	== Pathloss 4.0 - Build date March 4, 2014 ==		== Pathloss 4.0 - Build date March 4, 2014 ==

← Older revision		Revision as of 19:41, 4 March 2014
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		+	== Pathloss 4.0 - Build date March 4, 2014 ==
		+
		+	Space diversity using the IF combining configuration using the total time below level calculation method.
		+
		+	The effective space diversity improvement factor is calculated from the unprotected availability and the protected availability.
		+
		+	The protected availability numbers are correct; however, the effective space diversity improvement was incorrect.
		+
		+
	== Pathloss 4.0 - Build date February 7, 2012 ==		== Pathloss 4.0 - Build date February 7, 2012 ==

← Older revision		Revision as of 22:31, 7 February 2012
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		+	== Pathloss 4.0 - Build date February 7, 2012 ==
		+
		+	Filter improvement calculations in an interference analysis. Modifications made to accommodate very narrow band (.1 MHz) interfering transmitters into a wide band receiver

	== Pathloss 4.0 - Build date June 27, 2011 ==		== Pathloss 4.0 - Build date June 27, 2011 ==

← Older revision		Revision as of 19:15, 27 June 2011
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		+
		+	== Pathloss 4.0 - Build date June 27, 2011 ==
		+
		+	Terrain database configuration South Africa The Cape datum is used for NES data sources and WGS84 is used for ORT data sources.
		+
	== Pathloss 4.0 - Build date February 20, 2011 ==		== Pathloss 4.0 - Build date February 20, 2011 ==

← Older revision		Revision as of 18:39, 21 February 2011
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		+	== Pathloss 4.0 - Build date February 20, 2011 ==
		+
		+	Interference calculations - certain combinations of receiver selectivity and tx emission bandwidths could cause a program crash.
		+
	== Pathloss 4.0 - Build date January 4, 2011 ==		== Pathloss 4.0 - Build date January 4, 2011 ==

← Older revision		Revision as of 22:42, 4 January 2011
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		+	== Pathloss 4.0 - Build date January 4, 2011 ==
		+
		+	Summary of changes made in the interference calculations using TX emission (measured or masks) and RX selectivity curves (measured or masks)
		+
		+	The first change came in the August 26, 2010 build to handle a very narrow band interfering signals into a very wide band receiver. The numerical integration did not adequately detect the interference in the receive passband.
		+
		+	The second change occurred in the November 19, 2010 build to deal with RX selectivity data which covered a frequency range of +- 2000 MHz with 10 data points. In this case, an interpolation algorithm failed. A side effect of the changes in this build was a failure to correctly read ToI
		+	or IRF curves. This was corrected in the December 10, 2010 build.
		+
		+	As a result of these changes, special software was developed to test different radio data files against each other. The tests shown a discrepancy between the results using TX emission masks and measured data. This has been corrected in the present build.

	== Pathloss 4.0 - Build date December 10, 2010 ==		== Pathloss 4.0 - Build date December 10, 2010 ==

← Older revision		Revision as of 19:15, 10 December 2010
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		+
		+	== Pathloss 4.0 - Build date December 10, 2010 ==
		+
		+	Interference calculations using non symetrical TX emission or RX selectivity curves caused a program crash.
		+
	== Pathloss 4.0 - Build date December 09, 2010 ==		== Pathloss 4.0 - Build date December 09, 2010 ==

← Older revision		Revision as of 17:38, 9 December 2010
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		+	== Pathloss 4.0 - Build date December 09, 2010 ==
		+
		+	Interference calculations using non symmetrical TX emission or RX selectivity curves caused a program crash.
		+
	== Pathloss 4.0 - Build date November 19, 2010 ==		== Pathloss 4.0 - Build date November 19, 2010 ==

← Older revision		Revision as of 00:05, 20 November 2010
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−	== Pathloss 4.0 - Build date ~~September 20~~, 2010 ==	+	== Pathloss 4.0 - Build date November 19, 2010 ==

	Interference calculations using user defined RX selectivity curves with wide bandwidths (~4000 MHz) and a small number of data points (~10) failed.		Interference calculations using user defined RX selectivity curves with wide bandwidths (~4000 MHz) and a small number of data points (~10) failed.