3 antennas to four scanners

[Victor1975]

I have three antennas mounted on my truck one for 800mhz, a triband antenna and a chp antenna. Can I run all three to my four scanners?

 

[buddrousa]

To do this correct you need 2 of these 4 Port MCA204M VHF/UHF Receiver Multicoupler - 25 MHz to 1 GHz | Scanner Master

 

[zz0468]

I have three antennas mounted on my truck one for 800mhz, a triband antenna and a chp antenna. Can I run all three to my four scanners?

Your can, but you need to electrically isolate the antennas with some sort of filtering, combine the filter outputs, then split the combined filtered signals to the four receivers.