U.S. Department of Commerce NTIA/ITS
Institute for Telecommunication Sciences
ITS Propagation Data Measurements
FTP
ftp://flattop.its.bldrdoc.gov/propdata/
access raw propagation measurements from FTP directories.
- Phase 2 data - spot measurements for UHF frequencies (300-3000MHz)
- R1 = Colorado Plains
- R2 = Colorado Mountains
- R3 = Simulating Air-to-Ground
- R4 = From within a Woods
- VA = Virginia Piedmont
- Phase 1 data - spot measurements for VHF frequencies (30-300MHz)
- PL = Colorado Plains
- MT = Colorado Mountains
- OH = Ohio Hills
- Low Antenna data - spot measurements for UHF frequencies (300-3000MHz)
with antenna heights that are 3 meters or less
- Data access for Low Antenna data has not yet begun.
- WY = Laramie Mountains
- ID = Snake River Plateau
- WA = Columbia River Plateau
- Long Term data - Long term distributions of tropospheric transmission loss
- Data access for Long Term data has not yet begun.
To install the Profile Plot Program (PFL_PLOT) for Windows-95/98/NT/2000:
Download
PFL_PLOT.exe
and install from your hard drive.
README.txt file describes installation procedures.
If the software does not run because of a missing DLL, get
salflibc.dll
and put it into your C:\WINDOWS\SYSTEM directory.
Send any questions/comments/problems to
TA Services Support .