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Coax cable shielding


 

For those not used to a sensitive device as a spectrum analyzer I added a page to the wiki to illustrate the (im)perfection of coax shielding.

This shielding is particularly important with a close proximity strong transmitter at high frequencies


 

Attenuation of double shielded coax is around 90dB
so that would make that base station signal 0dBm?

On Fri, 31 Jul 2020 at 14:27, Erik Kaashoek <erik@...> wrote:
For those not used to a sensitive device as a spectrum analyzer I added a page to the wiki to illustrate the (im)perfection of coax shielding.

This shielding is particularly important with a close proximity strong transmitter at high frequencies


 

With a short antenna the base station signal is -40dBm.
Guess the shielding is a bit worse when one end of the coax is not connected