Robustel R5020 User Guide
RT_UG_R5020_v.1.0.2 Mar. 17, 2023 20/167
2.8 Attach External Antenna (SMA Type)
Attach an external SMA antenna to the router’s antenna connector and twist tightly. Make sure the antenna is within
the correct frequency range provided by the ISP and with 50 Ohm impedance.
Note: Recommended torque for tightening is 0.35 N.m.
RP-SMA-J antenna for WLAN
connection
SMA-J antenna for cellular connection
Or
RP-SMA-J GPS & 5G antenna; the one with
LMH tag is connected to ANT0\ANT3; the one
with MH tag is connected to ANT1\ANT2.
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