Radio Engineering Services

Consulting Services & Software Applications



Our Tips


View HERALD Videoclip


See Training Course List


Download Free E-Book on “Point-to-Point Radio Link Engineering”






Useful Links


International Telecommunication Union (ITU)


ITU Bookshop




European Radiocommunication Organization (ERO)


Federal Communications Commission



1arcsec   3arcsec


SRTM Maps (ViewFinder)




|    HERALD Sw    |    Training    |    Consulting Services    |    Demo Sw    |    Free E-Book    |    Contact   


This Website is not an e-commerce site; it provides only information on Software and Training material useful to the Radio Engineer, addressing to suitable Websites for commercial purposes




 NEW !


Ground-to-Aircraft Radio Link Analysis


Eagle_528 is a PC program useful to estimate link budget, path loss, and link reliability of a Ground-to-Aircraft radio link in the VHF, UHF, and SHF frequency bands.  Path Loss estimates are based on the model given by ITU-R Rec. P.528-4 (2019).  Several tools are provided to process such estimates and to display results in a practical style.


Main Functions :


*  Definition of Ground Station Data (to be saved in the Ground Station library);


*  Definition of Radio Link parameters (Ground Station and Aircraft);


*  Link analysis (Link budget report and various diagrams);


*  Display of 360 deg Radio Horizon around the Ground Station;


*  Radio Link data stored for further analysis and updates.



Eagle_528 key benefits:


*  Easy and fast check of up- and down-link reliability for any aircraft position (distance from ground station up to 1000km, height up to 10,000m) and for frequency range from 120 to 15,000 MHz


*  Use of NASA/SRTM maps (free download, 1 or 3 arcsec raster resolution) for radio horizon estimate


*  Multiple diagrams for intuitive link performance representation:


*  Link reliability vs. distance (for given aircraft heights);

*  Maximum distance vs. reliability objective;

*  Distance / Height maps giving Link Margin or Link Reliability in a colored scale.



Click Here for further Info





P-P Radio Link Design Software


A PC program for Windows that assists the Radio Engineer in the design of Point-to-Point Microwave Links and Networks, in the frequency range from 450 MHz up to 90 GHz


HERALD (HElp for RAdio Link Design) is an easy-to-use yet powerful tool, covering the gap between simple spreadsheet computations and sophisticated (high cost) design suites.


Main Functions :


*  Site/Hop Configuration;


*  Link Budget; Path Profile Analysis (clearance, reflections);


*  Multipath Outage; Rain Unavailability;


*  Interference analysis;


*  Passive repeaters;


*  One-click access to Background Theory.


Significant Features :


*  Import of SRTM (NASA) terrain maps, and of ASTER (NASA/METI, Japan) maps


*  Interface to Google Earth to import / export network topology


*  Update to the most recent ITU-R Recs (P.530, P.838, P.527 ...)


*  Comparison of predicted performance with ITU-R or North America performance objectives


*  Reading Antenna diagrams from NSMA (ASCII) files


*  Crane rain attenuation model (in addition to ITU-R model)

HERALD también habla Espanol   -   HERALD também fala Português

Choice of output document language (English, Spanish, Portuguese, or Italian)



HERALD key benefits:


*  Easy-to-use approach to the design of p-p (multi-hop) mw links and networks


*  Customized equipment / antenna libraries


*  Google Earth interface to import radio site positions and to export radio network topology to Google maps


*  Reliable design guidelines and propagation models (ITU-R, Bell Labs, Crane, ITM Longley-Rice)


*  Path profiles from NASA/SRTM or ASTER maps (free download, 1 or 3arcsecond raster resolution)


*  ITU-R and North America standards for performance objectives


*  Highly productive, interactive, user-friendly environment


*  Examples and exercises quickly available and fully explained


*  High quality, comprehensive design documentation, printouts and diagrams


*  Extensive context-sensitive Help, one-click access to background theory



Download HERALD Demo       View Herald Sw Videoclip




Copyright © Luigi Moreno, Torino (Italy) 1998-2020, All rights reserved.
 E-mail : info(at)




  Trademark Note :

  All product names contained herein are the trademarks of their respective holders.



Last update :  September 10, 2020