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<br />Cross-band interconnections can be implemented in several ways: <br /> <br />Simple Cross-band Repeater <br /> <br />This approach interconnects two radios Mback-to-back" such that received signals on either receiver <br />are re-transmitted by the other transmitter. <br /> <br />FIGURE 6 <br /> <br />VHF <br />Antenna <br /> <br />l <br /> <br />AUDIO & PTT <br /> <br /> <br />800 MHz <br />Antenna <br /> <br />Simple Cross-Band Repeater <br /> <br />Operationally, the two channels selected will seem to be one channel, as long as all radio users are <br />within the coverage *footprinr of the cross-band repeater and antennas. Some push-to-talk (PTT) <br />delay should be expected. <br /> <br />In this example, two tactical channels are interconnected to enable tactical communications <br />between resources equipped with differing equipments. <br /> <br />Mobile Tactical Interconnect or Radio Interoperability Gateway <br /> <br />This approach interconnects several radios "back-to-back" such that received signals on any <br />receiver are re-transmitted by all selected transmitters. <br /> <br />Operationally, all channels selected will seem to be one channel, as long as all radio users are <br />within the coverage ~footprint of the antennas being used. Some push-to-talk (PTT) delay should <br />be expected. In this example, several tactical channels are interconnected to enable tactical <br />communications between resources equipped with differing equipment. <br /> <br />16 <br />