Active RFID System Components 99
construction or repair. The MGate is 12 × 3.4 × 4.1 in. With these dimensions, the MGate is one of
the smallest ETC capable readers. The MGate can operate between −40°C and 70°C. The MGate
is illustrated in Figure 7.15.
7.3.3 mARk Iv AntennAs
Due to the nature of ETC systems, Mark IV offers their antenna separate from their readers. In most
applications, a number of antennas will be attached to a single reader. Each of these antennas will be
mounted either above or alongside the trafc lane. The lane antenna is 37 × 30 × 4 in. Theouter hous-
ing is berglass. It is hermetically sealed to withstand exposure to the elements. The antenna
can operate in temperatures between −40°C and 158°C. Figure 7.16 illustrat ...