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CC2530: Zigbee Range is so low please look at PCBs and tell me what is wrong

Other Parts Discussed in Thread: CC2530

art Number: CC2530

hi

i use this pcb antenna for coordinator and router

you see that i use  2450BM15A0002 

i use this circuit in both coord and router but range is not good at all

i set tx power to 3db still range in indoor is not more than 3 or 4 meter why?

if i should change this circuit is this good enough?

i need it for smart home application . yes i know i can use mesh network but 3 meter is so low range

in this u see that there is a sma connector that i can connect external antenna that i buy . what do u thnik? i want to use this in just coord and not in router . i dont want change router pcb i just want change coord pcb to have better range