Initial Commit

utils/antenna/README.md

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+Utility for convertng .ant files to Signal Server Format
+
+ant2azel
+
+-i antfilenam
+-o outputfile
+
+
+-d enable debugging
+-h print help
+
+-a Set the azimuth of the antenna
+-t Set the mechanical tilt of the antenna  positive numbers are downtilt.
+
+orginal version by kd7lxl, adapted to include the azimuth and tilt

utils/antenna/ant2azel.py

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+#!/usr/bin/env python
+import sys 
+import getopt
+import os.path 
+from os.path import splitext
+
+
+def db_to_norm(db):
+    return 10**(db/10.)
+
+
+def main(argv):
+    antfile = ''
+    outfile = ''
+    direction = 0
+    tilt = 0
+    debug = 0
+    program = os.path.basename(__file__)
+
+    try:
+        opts, args = getopt.getopt(argv,"dha:i:o:t:",["debug","help","azimuth=","infile=","outfile=","tilt="])
+    except getopt.GetoptError:
+        print program + '  --debug --help -a <azimuth> -t <mechanicaldowntilt> -i <inputfile> -o <outputfile>'
+        sys.exit(2)
+    for opt, arg in opts:
+        if opt in ("-d", "--debug"):
+            debug = 1
+        elif opt in ("-h", "--help"):
+            print  program + ' --debug --help -a <azimuth> -t <mechanicaldowntilt> -i <inputfile> -o <outputfile>'
+            sys.exit(2)
+        elif opt in ("-i", "--infile"):
+            antfile = arg
+        elif opt in ("-o", "--outfile"):
+            outfile = arg
+        elif opt in ("-a", "--azimuth"):
+            direction = arg
+        elif opt in ("-t", "--tilt"):
+            tilt = arg
+        if antfile == '':
+            print  program + ' --debug --help -a <azimuth> -t <mechanicaldowntilt> -i <inputfile> -o <outputfile>'
+            sys.exit(2)
+    if outfile == '' :
+        outfile = splitext(antfile)[0]
+    if debug :
+        print "outfile " + outfile
+        print "downtilt " + tilt     
+    with open(antfile, 'r') as ant:
+        with open(outfile + '.az', 'w') as az:
+            # azimuth offset as provided by command arg or 0
+            az.write("%d\n" % float(direction))
+            # Read the first 360 lines of the file
+            for i in xrange(360):
+                az.write("%d\t%0.4f\n" % (i, db_to_norm(float(next(ant)))))
+        with open(outfile + '.el', 'w') as el:
+            # mechanical downtilt, azimuth of tilt
+            el.write("%0.1f\t%0.1f\n" % (float(tilt), float(direction)))
+            # Read the lines for elevations +10 through -90).
+            # The rest of the .ant is unused.
+            for i, line in enumerate(list(ant)[80:181], -10):
+                el.write("%d\t%0.4f\n" % (i, db_to_norm(float(line))))
+
+
+if __name__ == "__main__":
+   main(sys.argv[1:])