A device configured to inject a plurality of signals onto a medium using voltage injection, the medium being made up of (i) N conductors and (ii) a reference plane, the device comprising: E signal inputs, wherein E is between 1 and N, and wherein each of the E signal inputs is configured to respectively receive one of the plurality of signals to be injected onto the N conductors of the medium; E signal transformers configured to receive the plurality of signals from the E signal inputs, wherein the E signal transformers are configured to inject the plurality of signals between different conductors of the N conductors; and C differential mode chokes, wherein C is between 1 and E, wherein, for each differential mode choke of the C differential mode chokes, the differential mode choke includes one input and two outputs, the input is connected to either (i) one end of a secondary winding of one of the E signal transformers, or (ii) one of the outputs of another one of the C differential mode chokes, and the two outputs are connected to either (i) the inputs of two others of the C differential mode chokes, (ii) the input of another one of the C differential mode chokes and a conditioner of one of the conductors, or (iii) signal conditioners of two of the conductors, wherein the injections that use the C differential mode chokes are injections selected from between (i) pseudo-differential injections, (ii) injection in common mode, or (iii) a combination of pseudo-differential injections and injection in common mode. E signal inputs, wherein E is between 1 and N, and wherein each of the E signal inputs is configured to respectively receive one of the plurality of signals to be injected onto the N conductors of the medium; E signal transformers configured to receive the plurality of signals from the E signal inputs, wherein the E signal transformers are configured to inject the plurality of signals between different conductors of the N conductors; and C differential mode chokes, wherein C is between 1 and E, wherein, for each differential mode choke of the C differential mode chokes, the differential mode choke includes one input and two outputs, the input is connected to either (i) one end of a secondary winding of one of the E signal transformers, or (ii) one of the outputs of another one of the C differential mode chokes, and the two outputs are connected to either (i) the inputs of two others of the C differential mode chokes, (ii) the input of another one of the C differential mode chokes and a conditioner of one of the conductors, or (iii) signal conditioners of two of the conductors, the differential mode choke includes one input and two outputs, the input is connected to either (i) one end of a secondary winding of one of the E signal transformers, or (ii) one of the outputs of another one of the C differential mode chokes, and the two outputs are connected to either (i) the inputs of two others of the C differential mode chokes, (ii) the input of another one of the C differential mode chokes and a conditioner of one of the conductors, or (iii) signal conditioners of two of the conductors, wherein the injections that use the C differential mode chokes are injections selected from between (i) pseudo-differential injections, (ii) injection in common mode, or (iii) a combination of pseudo-differential injections and injection in common mode.