A feed network arrangement for generating a multi-antennae signal includes a plurality of coupler devices coupled to one another in waveguide technique, and a plurality of adjustable length of line devices. The liquid crystal composition contains a compound represented by formula, and a liquid crystal display device uses the composition:in which, in formula, R1 to R8 are hydrogen or alkyl having 1 to 4 carbons; ring A1 and ring A2 are cyclohexylene, phenylene, naphthalenediyl or the like; Z1, Z2 and Z3 are a single bond or the like; and a and b are independently 1 or 2, and c is 0, 1 or 2. The same submold can be changed for a different use. The transceiver may also include a memory for storing packet details regarding a status of other packets being sent over the transmission channel,. The ink container is provided below the multi-nozzle inkjet recording heads and the electrical system unit.