+Release 1.3.0:
+By John A. Magliacane <kd2bd@amsat.org> (11-Apr-09):
+
+* Introduced one arc-second high-resolution versions of SPLAT!
+ (splat-hd) and the srtm2sdf utility (srtm2sdf-hd) to permit
+ detailed topographic and RF signal analyzes based on SRTM-1
+ digital elevation models.
+
+* Introduced a new configure script that generates the appropriate
+ MAXPAGES parameter prior to compiling SPLAT! based on user
+ interaction at configuration time.
+
+* Added transmitter EIRP, estimated received signal power level
+ (in dBm), estimated received signal power density (in dBW/m^2),
+ and received signal power density to Path Analysis Reports.
+ EIRP can also now be expressed as dBm in place of ERP in
+ Watts in .lrp files.
+
+* Added a new mapping mode that plots contours of received signal
+ power levels in dBm using the new -dbm option. New .dcf files
+ control the color scheme of the plotted contours.
+
+* The function of the -db option has been expanded to serve as a
+ contour threshold limit for all three mapping modes (path loss,
+ signal strength, and signal power level).
+
+* New -ano and -ani (alphanumeric output and input) options have
+ replaced the -plo and -pli (path loss output and input) options,
+ and can contain either path loss data (as before), field strength
+ data (new), or received signal power level data (new). Path loss
+ figures in .ano files ignore the effects of transmit antenna
+ pattern, while field strength and received signal power levels
+ take antenna pattern into account.
+
+* Uniform ground clutter height can now be specified using the new
+ -gc switch.
+
+* Several bugs in SPLAT!'s UDT file handling were fixed.
+
+* Bugs affecting the operation of the -f switch were identified
+ and fixed.
+
+* The reported field strength and the corresponding voltage induced
+ across the receive antenna in Path Analysis Reports were found to
+ be 2.14 dB too low. The cause was identified and fixed.
+
+* Some modifications were made in coding and scripting in response to
+ changes that have occured in the latest versions of gcc and bash.
+
+* The documentation was updated to reflect all the improvements.
+
+
+----------------------------------------------------------------------------
+
+Release 1.2.3:
+By John A. Magliacane <kd2bd@amsat.org> (30-Jul-08):
+
+* Fixed a problem that sometimes caused SPLAT! to hang indefinitely
+ when reading some cartographic boundary files on some platforms.
+
+* Fixed a problem introduced in v1.2.2 that sometimes caused black
+ horizontal and/or vertical dotted lines to appear in path-loss
+ and signal strength contour plots.
+
+* The UDT file switch was described as -udt in the documentation,
+ but recognized as -u in SPLAT!. SPLAT! was modified to reflect
+ the documentation.
+
+* The -R option can now increase (as well as limit) the .ppm image
+ size when generating topographic maps.
+
+* Dots ('.') are now permitted in the base of filenames passed to SPLAT!
+
+* Further improvements in accuracy were made to both SPLAT! and the
+ srtm2sdf utility. Users are encouraged to re-create their .sdf
+ files using the latest version of srtm2sdf for the best performance.
+
+* The loading and display of cartographic boundary files now works
+ for any region of the planet.
+
+* A -gpsav command-line switch option was added to instruct SPLAT! to
+ preserve the temporary working files it creates when invoking gnuplot.
+ This permits users to view and edit these files, and even re-run
+ gnuplot outside of SPLAT! (Tnx John McMellen)
+
+----------------------------------------------------------------------------
+
+Release 1.2.2:
+By John A. Magliacane <kd2bd@amsat.org> (10-May-08):
+
+* Cleared up some very small inaccuracies (+/- 1 pixel) through better
+ numerical rounding techniques.
+
+* Transmitter site location names now appear in .ppm maps even if no
+ city location files are loaded into SPLAT!
+
+* Fixed a problem that prevented operation over paths that extended
+ across the Prime Meridian.
+
+* Fixed a problem that produced incorrect TX-to-RX distances in the
+ Site Analysis Report when the -metric switch was used. (Tnx Martin, M0ADY)
+
+* When generating .ppm map contours, SPLAT! is now slightly more liberal
+ when loading SDF files to help ensure the contour doesn't get cut off
+ if it should approach the boundary of an SDF file.
+
+* Added a new utility called "bearing" (under utils) that determines
+ distance and azimuth bearings between two site location (.qth) files.
+
+* The man page installation process was improved.
+
+* Some very minor documentation updates were made.
+
+----------------------------------------------------------------------------
+
+Release 1.2.1:
+By John A. Magliacane <kd2bd@amsat.org> (18-Oct-07):
+
+* SPLAT! now imports transmitter effective radiated power information and
+ predicts received field strength signal levels (dBuV/m) and antenna
+ voltage based on the transmitter's antenna pattern, computed path loss,
+ and ERP. ERP information is specified on the ninth line of SPLAT! .lrp
+ files.
+
+* The ability to plot signal strength contour maps has been added. The
+ color schemes for plotting signal strength and path loss contour maps
+ can now be customized by editing the contents of .scf and .lcf files
+ for each transmitter site. In addition, both signal strength and path
+ loss contour maps can now be generated for multiple transmitter sites,
+ with the greatest signal strength (or least path loss) illustrated in
+ overlapping regions between sites.
+
+* A new -ngs switch assigns all topography to the color white in .ppm
+ contour maps. The white background can be made transparent using
+ simple graphics utilities for merging SPLAT! contour maps with other
+ Mercator projection maps and graphics files of equivalent size and
+ resolution.
+
+* Path loss and signal strength contour regions can now be exported to
+ Google Earth as a semi-transparent ground overlay using the -kml switch.
+
+* The default contour map filename now defaults to the basename of the
+ transmitter site .qth file (or first transmitter site within a network)
+ with a .ppm extension (rather than "map.ppm").
+
+* The Fresnel zone clearance percentage, which was fixed at 60% in the
+ past, is now user-definable using the new -fz command-line option.
+
+* Information previously contained in SPLAT! Obstruction Reports has now
+ been merged with Longley-Rice path loss information into a single Path
+ Analysis report (with a .txt extension). (Longley-Rice output (.lro)
+ files are no longer generated.)
+
+* Graph plotting (the -l option) no longer needs to be forced to perform
+ a Longley-Rice path analysis in point-to-point mode. If a .lrp file is
+ available and contains the information needed, Longley-Rice path loss
+ information will be automatically included in SPLAT!'s Path Analysis
+ Report when performing a point-to-point analysis.
+
+* In addition to information previously contained, SPLAT! Path Loss Output
+ (-plo) files now contain additional information including path loss
+ considering the effects of the transmitting antenna's radiation pattern
+ (if pattern data is available), and field strength values (dBuV/m)
+ based on pattern data and ERP data (if available). An asterisk at
+ the end of each line indicates the path to the point referenced in
+ the file is obstructed by terrain.
+
+* The srtm2sdf utility now handles 3-arc second SRTM in .BIL (Band
+ Interleaved by Line) format, as well as the usual .HGT format.
+
+* SPLAT!'s associated itm.cpp file was updated to include the latest
+ public domain ITM code released on June 26, 2007.
+
+* References in source code and documentation to "slots" and "MAXSLOTS"
+ have been changed to "pages" and "MAXPAGES", respectively.
+
+* Two bugs affecting the plotting of Fresnel zones were identified and fixed.
+
+* A bug that produced some erroneous elevation angles in SPLAT! Path Loss
+ Output (-plo option) files was identified and fixed.
+
+* Text documentation in Spanish was added (thanks to Charles Escobar).
+
+* The build scripts were modified to permit successful compilation with
+ bzip2-1.0.4 libraries. (Thanks to Janek, SQ5MJL)
+
+----------------------------------------------------------------------------
+
+Release 1.2.0:
+By John A. Magliacane, <kd2bd@amsat.org> (22-Dec-2006):
+
+* All graph plotting has been enhanced to include distances, azimuths,
+ and in some cases, elevation angles, in numeric form. Height
+ plots (-h option) now include a contour of the Earth's curvature.
+ A new -H option was added that behaves the same as -h, except its
+ display of heights is normalized to the heights of the endpoints
+ along the plotted path. Graphs now default to PNG rather than GIF
+ format to reflect gnuplot's current trend away from .gif output.
+ (.gif is still available if your version of gnuplot supports it.)
+ Postscript output is now generated in enhanced color.
+
+* SPLAT! can now determine and plot Fresnel Zone clearances. A new
+ -f command-line option permits the Fresnel Zone frequency (in MHz)
+ to be specified, otherwise it can be determined from .lrp files when
+ path-loss calculations are performed. Antenna height requirements
+ for 60% clearance (0.6 F1) and 100% clearance (F1) of the First
+ Fresnel Zone now appear in Obstruction Reports. These zones are
+ also displayed graphically in height plots (-h or -H options).
+
+* Support for antenna radiation patterns has been added. SPLAT! now
+ reads normalized azimuth and elevation antenna field pattern data
+ from separate .az and .el files when Longley-Rice studies are performed.
+ One degree azimuth and one tenth degree elevation pattern resolution
+ is supported along with azimuthal pattern rotation and mechanical
+ vertical beam tilt.
+
+* A bug in the interpretation of the -n and -N command-line options
+ was fixed.
+
+* Negative geographical coordinates in DMS format are now (hopefully)
+ interpreted and displayed better than before.
+
+* SPLAT! data handling can be changed from imperial units (feet/miles)
+ to metric (meters/kilometers) units using the new -metric switch.
+
+* SPLAT! can now generate topographic maps without plotting
+ line-of-sight or path loss coverage. These maps are centered
+ approximately on the given tx_site, extend out to a radius
+ provided by the -R switch, and can be populated with county
+ boundaries and city names, just like SPLAT!'s traditional
+ line-of-sight and path loss maps.
+
+* Support for user-defined terrain files (ground clutter) has been
+ added.
+
+* SPLAT! can now generate .geo Geo-reference Information Files
+ when .ppm topography and coverage maps are created, permitting
+ the integration of SPLAT! generated maps with X Amateur Station
+ Tracking and Information Reporting (www.xastir.org) software.
+
+* SPLAT! can now generate .kml Keyhole Markup Language files that
+ when imported into "Google Map", dramatically illustrate the RF
+ path between transmitter and receiver locations when performing
+ point-to-point analyses.
+
+* Support for exporting Longley-Rice path loss contour studies to
+ external data files has been included. SPLAT! path loss files can
+ be used for performing coverage or interference studies outside of
+ SPLAT!. They can also be modified externally (with antenna pattern
+ data, for example) through scripts or small utilities, and imported
+ back into SPLAT! to generate coverage maps based on the revised
+ data without having to re-run any time intensive Longley-Rice path
+ loss calculations.
+
+* The documentation was updated to reflect the new features and
+ functionality of the software.
+
+----------------------------------------------------------------------------
+
Release 1.1.1:
By John A. Magliacane, <kd2bd@amsat.org> (01-Apr-2006):
projects / debian / splat / blobdiff