crystal selection for si4468 long rang application
08/241/2017 | 11:51 PM
I want to use si4468 for long rang application; for example 1km~2km,20dbm tx power,40kbps rate; What kind of crystal oscillator should i use? high precision crystal oscillator will improve sensitivity? I want to know the relationship.
If use a high precision crystal, the RBW could be small so that the sensitivity will be improved generally, but it also depends on your board's impedance matching. It means you need to tune it on the specific board.
There's no problem about the range of 1km~2km if the module works in a very good environment. However, the the real working environment may be not very good.