Hi mates.
Thank you for helping
I found several suitable RF switches in **broken link removed**
However, the ones I found don't have built-in DC block capacitors in their RF ports, while I cannot guarantee that the cellular mobiles don't output any DC voltage in their transmitter output.
For example:
https://www.electro-tech-online.com/custompdfs/2012/04/ZX80-DR230.pdf
I don't know how to connect these DC block capacitors, and still be able to easily connect the RF cable to the RF switch (this RF cable connects the cellular mobile and the RF switch).
As I wouldn't wanna cut the RF cable and solder it to the DC block capacitor.
You have an idea how to do it?
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I found PIN Diode RF switches, which have built-in DC block capacitors.
You see any reason why not using these?
I found this one, which is a little more expensive (90$ per unit): ZSDR-230+ https://www.electro-tech-online.com/custompdfs/2012/04/ZSDR-230.pdf
@Diver:
As for the purpose of this switching:
I'm testing a cellular chip in front of live network.
So what I do is connecting the cellular chip to an external antenna which is located on the roof of the building.
The cellular chip is also connected to a PC, so I can see how it communicates with live network in different scenarios - Idle, Voice Call, Internet connection, etc.
Sometimes, when I get a weird behavior (for example, the cellular chip doesn’t manage to register on a cell and therefore remains in No Service), I want to see how a Reference cellular mobile behaves, to determine whether the strange behavior is a live network issue, or an issue of the cellular chip that I test.
Thank you.