Uniden UM380 English Owners Manual - Page 34

Connecting the radio To operate correctly, your radio requires two electrical connections: xx providing it with power from the boat's electrical system xx connecting a VHF-FM marine antenna to the antenna connector Power Supply Requirements VHF Antenna Requirements Nominal 13.8 VDC power supply with a Male PL-259 connector negative ground (9.5 VDC to 15.8 VDC). 50 Ω impedance Power leads should be kept as short as Minimum 4 foot, 3 dB rated antenna for possible. A direct connection to the power sailboats or 8 foot, 6dB rated antenna for supply is ideal. powerboats Minimum of #14 AWG copper wire for Minimum RG-58 lead-in wire for antenna extensions up to 20 feet, 12 AWG wire for leads up to 20 feet, RG-8X for antenna extensions from 20 to 35 feet, or 10 AWG leads from 20 to 35 feet, or RG-8U for wire for extensions from 35 to 60 feet. antenna leads from 35 to 60 feet. 1. Connect the BLACK wire of the power cable to the NEGATIVE (-) side of your power source. 2. Connect the RED wire of the power cable to the POSITIVE (+) side of your power source. 3. NOTE: To extend the life of the radio, Red wire (+) use waterproof tape to seal electrical connections. 4. Install your antenna according to the manufacturer's instructions. 5. If necessary, consult the FCC guidelines for antenna separation. See Antenna Selection and Installation on page 47 for more 13.8V DC Black wire (-) details. (In summary, the FCC recommends that antennas up to 3 dB be installed a minimum of 3 feet from any occupied location; antennas over 3 dB should be installed at least 6 feet away.) 6. Connect the PL-259 connector from the antenna lead-in wires to the SO238 connector labeled ANTENNA on the back of your radio. Radio connector, SO238 (female PL-259) Antenna lead-in connector, male PL-259 30 English UM380_20101221.indd 30 4/13/2011 11:25:17 AM