X-Git-Url: https://git.gag.com/?p=debian%2Fsplat;a=blobdiff_plain;f=sample.lrp;fp=sample.lrp;h=0000000000000000000000000000000000000000;hp=094c2114119d25a00f30c5f5ad4e36002948c888;hb=dcc481697c227c3b265d1e68a8a82910c818332c;hpb=3504a1ce545f764f4e96a31fa53dbf498e0bd9f9 diff --git a/sample.lrp b/sample.lrp deleted file mode 100644 index 094c211..0000000 --- a/sample.lrp +++ /dev/null @@ -1,72 +0,0 @@ -15.000 ; Earth Dielectric Constant (Relative permittivity) -0.005 ; Earth Conductivity (Siemens per meter) -301.000 ; Atmospheric Bending Constant (N-units) -300.000 ; Frequency in MHz (20 MHz to 20 GHz) -5 ; Radio Climate (5 = Continental Temperate) -0 ; Polarization (0 = Horizontal, 1 = Vertical) -0.5 ; Fraction of situations (50% of locations) -0.5 ; Fraction of time (50% of the time) - -This file contains Longley-Rice path loss parameters used -by SPLAT! Anything after the 8th line is ignored by the -program. Comments are allowed following each element of -numeric data. No blank lines are allowed at the top. - -Earth dielectric constants and conductivity values are as follows: - - Dielectric Constant Conductivity - Salt water : 80 5.000 - Good ground : 25 0.020 - Fresh water : 80 0.010 - Marshy land : 12 0.007 - Farmland, forest : 15 0.005 - Average ground : 15 0.005 - Mountain, sand : 13 0.002 - City : 5 0.001 - Poor ground : 4 0.001 - -Radio climate codes are defined as follows: - - 1: Equatorial (Congo) - 2: Continental Subtropical (Sudan) - 3: Maritime Subtropical (West coast of Africa) - 4: Desert (Sahara) - 5: Continental Temperate - 6: Maritime Temperate, over land (UK and west coasts of US & EU) - 7: Maritime Temperate, over sea - -The Continental Temperate climate (5) is common to large land masses in -the temperate zone, such as the United States. For paths shorter than -100 km, there is little difference between Continental and Martitime -Temperate climates. - -The final two parameters in the .lrp file correspond to the statistical -analysis provided by the Longley-Rice model. In this example, SPLAT! -will return the maximum path loss occurring 50% of the time (fraction -of time) in 50% of situations (fraction of situations). Use a fraction -of time of 0.97 for digital television, 0.50 for analog. Isotropic -antennas are assumed. A tuned half-wave dipole has a gain of 2.14 dB -above that of an isotropic antenna. - -Edit these parameters as required and save the result ("Save As") -to a filename with an extension of ".lrp" in the directory normally -used for .qth files (current working directory is assumed). The -base of the filename MUST match the base of the corresponding -SPLAT! transmitter site QTH filename for proper correlation -between data sets. In other words: - - wnjt.qth <--- TX site data for WNJT - wnjt.lrp <--- Corresponding Longly-Rice parameters for WNJT - -If an LRP file corresponding to the tx_site QTH file cannot be -found, SPLAT! scans the current working directory for "splat.lrp". -If this file cannot be found, then the default parameters listed -above are assigned by SPLAT!, and a "splat.lrp" file containing -these parameters is written to the current working directory. - -For further information on Longley-Rice model parameters, see: - - http://elbert.its.bldrdoc.gov/itm.html - http://www.softwright.com/faq/engineering/prop_longley_rice.html - -Also consult SPLAT!'s documentation for more information.