You technically can use the CB antenna for your AM/FM radio, because your radio only needs something metallic and outside the vehicle.

Product Description 900 MHz f-pin coaxial splitters are used to split over-the-air broadcast signals like that of VHF and UHF television and FM radio. This particular splitter will allow you to split one source signal into six so you can share an antenna between six TVs or radios without having to switch wires.

An AM antenna is not an FM antenna. Their requirements are very different. Most AM transmissions rely on groundwave signals to maintain coverage. Only a relatively few clear channel stations produce a useful skywave signal that is protected by the FCC’s Rules.

The main reasons to use your car radio antenna for your CB radio that is you have one less hole to drill into your car, you do not need to run two antenna wires and there is one less antenna to attract the attention of vandals.

There is no process connection between the separator and the splitter. Separator provides segregation of two different phases, whereas component splitter segregates each and every component from the feed stream based on the specified component split, and it is not interested in phase separation.

The built-in radio antennas for AM usually do a good job, but if your radio has an external AM antenna connection on the back, a simple wire or loop can be of help. The orientation of the radio with its internal “bar” antenna can be important — always try rotating your AM radio to find the best signal.

They other guys are right, a TV antenna will not work on AM. The loop antenna inside your clock radio will work better on AM than a TV antenna. If you really want to improve AM reception you could get a Select-a-tenna; it’s basically a large AM loop antenna inside a round plastic box.