akc4:
However, I think this project would be a good project for an expert if it's possible.
But it looks like an 'expert' has already done one, you gave us the link.
Devices such as this need quite a lot of support components for the neccessary RF antenna matching and filtering to reduce spurious emissions. Take a look at the typical components on a simple one band RF module and then multiply that up by the several bands the Yard Stick One supports.
An 'expert' would end up with a device that probably requires a lot of very small surface mount assembly and this implies it needs automated assembly. The device would also need a fair bit of (expensive) compliance testing so that it does not wipe out other vital communications.
So its a project that is quite a long way from a DIY Arduino approach.
akc4:
I honestly have no idea and I am quite new to arduino.
not an expert and I am quite new to arduino.
However, I think this project would be a good project for an expert if it’s possible.
It’s good to see that you accept that it is beyond your current skill level.
I’m not even sure that it would be a good project for an expert - why would he waste his expert time when he can just buy one? Unless he (or she) was planning to create a commercial product in competition with the one in your link.