Coax Cable

[skws]

Hello to all how to connect the cable rg 58 to the board , can i use the inner end the external jacket of one cable ? or i must use two inner of two cable?

[WM6]

Hello to all how to connect the cable rg 58 to the board , can i use the inner end the external jacket of one cable ? or i must use two inner of two cable?

If we discuss PI mono coil, then:

- if you don't tend to shield yor coil, then you can use only one cable (but in this case is not sense to use RG58 - twisted pair of two insulated wire can be enough).

- in case of building shielded coil, you ned two cables and connect shieldings of both cables togheter and to coil shielding and (usually) to board GND, two inner wire of both cables you use for coil connection.

[skws]

Yes a pi mono coil whitout shield, my doubt is the external shield of a coax is only for protection against interference or can be used as a wire?

[Carl-NC]

You can use the cable shield as a wire, whether or not the coil is shielded. Normally, the cable's center conductor is the signal (connected to the FET switch) and the cable shield is the ground/supply connection (depending on the design); the coil shield is then connected to the cable shield.