High Frequency Propagation Models - ICEPAC, VOACAP, REC533
Disclaimer: The software contained within was
developed by an agency of the U.S. Government. NTIA/ITS has no objection to the
use of this software for any purpose since it is not subject to copyright
protection in the U.S.
No warranty, expressed or implied, is made by
NTIA/ITS or the U.S. Government as to the accuracy, suitability and functioning
of the program and related material, nor shall the fact of distribution
constitute any endorsement by the U.S. Government.
Advertisement: If you require software changes to meet
your needs, you may contact:
- NTIA/ITS - the US government agency that developed the software.
- Greg Hand - I am retired and am willing to make changes. Email: gregory.hand -at- gmail.com
Retired: As of Feb 3, 2005, after 33 years of work, Greg
Hand has retired from federal service. He will still be involved in this HF
software, but just do not expect instantaneous email contact as he might be
having fun somewhere.
that detail the
changes made for each version of the software. (Since Dec 1992)
The following HF propagation models for Windows PCs are available here:
ICEPAC is IONCAP with ICED profile model developed by NTIA/ITS.
- Windows (all operating systems) 32-bit versions of ICEPAC / VOACAP / REC533
- Now (6May15) using InstallMate©.
- Tarma no longer would support new Windows versions.
- These newer installations may not work on Windows systems older than 2000.
- (2Feb04) using Tarma Installer ©.
- Updated with new compiler, much faster than 99.0201 or previous
- HFCC.zip -
Antennas used by the ITU & HFCC *** New 2/13/2003 ***
- These antennas are useful for HF Broadcasters and their coordination
- *** New 2/10/2012 *** hfcc_more.zip - 6 Rhombic antennas added.
VOACAP is IONCAP modified by USIA/VOA for broadcasting.
REC533 is the ITU-R PI.533 model for international HF planning.
readme.txt file describes installation procedures.
- Power Point presentation given at Space
Weather Week 13 April 2004
*** Real New 12/29/2016 ***
Ionospheric indices information.
A joint submission from the US and Australia for the
Revision of Recommendation ITU-R P.372-8
Combination of Radio Noise (previously know as CCIR Report 322-3)
will be presented in Geneva April 2007.
Software detailing the changes may be obtained
Other useful links: