+++ /dev/null
-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.
projects / debian / splat / blobdiff