7 lines
298 B
Markdown
7 lines
298 B
Markdown
# PNT Carrier Wave
|
|
The UHF frequencies around 1.6 GHz were chosen for GPS and related applications
|
|
because they provide a sensible tradeoff between
|
|
- antenna size (bigger for lower frequencies),
|
|
- ionospheric refraction (higher for lower frequencies),
|
|
- absorption (higher for higher frequencies).
|