CB Radio accessory unit

A CB radio accessory unit comprising:

• an indicating meter means;
• a first connector means for connecting to a CB radio;
• an SWR monitor circuit connected to said first connector means to provide signals capable of being indicated on said meter means;
• a power detection circuit switchably coupled to said first connector means to provide signals capable of being indicated on said meter means;
• a field strength detection circuit having an RF input to provide signals capable of being indicated on said meter means;
• a first switching means connected to said meter means for selectively connecting said SWR monitor circuit, said power detection circuit and said field strength detection circuit to said meter means to indicate said signals;
• a second connector means for connecting to a vehicle broadcast band receiver and coupled to said RF input;
• a third connector means for connecting to an antenna usable with a CB radio;
• an impedance transformation network connected between said first connector means and said third connector means;
• a second switching means connected to said SWR monitor circuit, said impedance transformation network and said third connector means for selectively connecting said impedance transformation network to said third connector means and said SWR monitor circuit or connecting said SWR monitor circuit to said third connector means;
• and
• a third switching means connected to said third connector means and to said second switching means for connecting said third connector means to said RF input.