Unitech TB80 Guide De Démarrage Rapide page 83

(7).In open field and waiting for 1min
and check if there is a satellite.
standard:
Enviroment: in open field, no metal in around, no obstacles. Sunny weather, no clouds
covering.
Condition: can see satellites above 12 pieces, effective satellites above 10 pieces. Have2-3
pieces satellites value reach to above 40 dB.
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(8). OK! wait for 3 mins and check
if satellites value, quantity meet
standard.