Dual-band GNSS receivers can use different signal frequencies to help address sources of positioning error. It is a system-level design choice, not a promise of a fixed accuracy number.
Switch the illustration and move along the route to explore the idea.
FIELD TEST / VISUAL SIMULATIONRIDGELINE 01
46° 51′ N 09° 32′ E ILLUSTRATIVE ROUTE
L1 + L5Two bands. A more considered line.
Simulated line behaviour. Not a real trail map, positioning measurement or navigation aid.
01 / RECEIVE
Listen to the sky.
GNSS receives navigation signals to estimate position. It does not send a message to a satellite or call another person.
02 / RESOLVE
A second perspective.
Multiple frequencies can help a receiver account for some signal errors. Reflections, sky view and antenna design still matter.
03 / UNDERSTAND
Context before confidence.
No centimetre-level, guaranteed or hardware-tested accuracy is claimed for this concept.