Computer Engineeringelectronics Engineering Civil Engineering |
|
The beginning of new millenium sees an important milestone in military aviation communication with the introduction of the first Super-High-Frequency (SHF) airborne satellite communication (Satcom) terminals, which are due to enter service on Nimrod maritime reconnaissance aircraft (MRA4). Satcom terminals using the Ultra-High-Frequency (UHF) band have been fitted to larger aircrafts for a number of years. Although relatively simple to install and comparatively inexpensive, UHF satcoms(240-270 & 290-320 MHz bands) suffers from very limited capacity (a few 25 KHz channels per satellite) and are prone to multipath & unintensional interference due to their poor antenna selectivity. SHF satcoms (7.25 |
|
No comments:
Post a Comment