Ron Jensen wrote: > The file TACAN_freq.dat.gz contains the wrong frequency data for our > use. It contains the ground reply channel frequencies, as we are using > the frequencies to look up TACANs and VORTACs in nav.dat.gz and > nav.dat.gz uses the VOR channel frequencies. > > Attached are modified TACAN_freq.dat and carrier_nav.dat files. I > didn't do diffs because every line in both files changed. > > Note that not all TACAN channels have VOR channels assigned, > specifically channels 001-017 and 060-069 both "X" and "Y". I left > these channels set to the ground reply frequencies, but multiplied them > by 10 to avoid conflicts with the VOR channel frequencies. The ground > reply freqs are in the 900-1200 MHz range, so this is appropriate. > > With these two files installed you can use the TACAN system to fly TACAN > and VORTAC on the correct channels. The carriers will still show up on > 025Y and 029Y, but you won't pick up China Lake if the Nimitz isn't > active as it has moved to its correct channel, 053X > http://www.airnav.com/cgi-bin/navaid-info?NID >
Since the code generates a subset of the nav.dat containing only TACAN/VORTAC entries at runtime, the correct way to do it would be to amend the data in nav.dat.gz by adding the TACAN data as new entries. However, much as I hate to fix one hack with another, this does seem to be a good fix for the problem. Thanks Vivian ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid3432&bid#0486&dat1642 _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
