DCARA has 3 sites that all share a common control radio frequency. This allows us to link some repeaters in half-duplex, as the control link radios are a single Motorola CDM1550.

All control radios operate on the same frequency, so linking a repeater to a control radio can be thought of as adding it to a group or pool.

To link and unlink certain repeaters, it is important to understand how these sites are internally configured.

• Port 1: 146.92 (TX/RX)
• Port 2: WX-250 (RX)
• Port 3: Control Radio (TX/RX, half-duplex)