RO 4500 DSC Marine Transceiver

Instruments and connections 
- Sender/Receiver with microphone and built-in loudspeaker 
- connectable external loudspeaker 
- Large display, contrast and loighting adjustable 
- Water protected, suitable for outward mounting 
- All operating elements are on the main unit, additional operating keys at the microphone 
- NMEA 0183 input for GPS (position and time) 
- Rotating button for loudness, squelch and channel selection
- GPS Alarm when the GPS-Signal is interfered
- Key sounds loud/ low 
- 12 V and antenna connection PL

Radio communication 
- Separate band key for access to 55 international channels 
- Separate channel 16 key at main unit and microphone 
- Channel pre-selection at  main unit and microphone 
- Switch over from 25 W to 1 W (Hi/Lo) at main unit and microphone 
- Dual Watch (watching channel 16 and any working channel) 
- Triple Watch (watching channel 16, 9 and any working channel) 
- Memory, stores up to10 channels, separate memory key 
- Priority Scan throughout all channels in 1 - 16 - 2 - 16 - 3 - 16... order 
- Memory Scan throughout all memory channels 

DSC - communication 
- Separate DSC - key for channel 70 
- Sending of distress calls including position and time (GPS connection or manual input necessary) 
- Sending Distress calls either non-specified or specified with international used codes (fire, collision, Man over Board ...) 
- Continous sending of Distress calls in intervals of 4 minutes, until a confirmation is received 
- All Ships-, Group- or individuell DSC calls are possible
- Adress  storage for up to 20 names and MMSI numbers 
- Storage for up to 10 Distress- and 20 individual received calls 

Technical data
Sender frequency 156.050 ~ 157.425 MHz 
Receiver frequency 156.025 ~ 162.025 MHz 
55 international channels  1 - 28, 60 - 74, 77 - 88 
10 memory channels 
Modulation FM 
Antenna impedance 50 Ohm 
Condenser type microphone 
Voltage supply 13,8 V DC 
Sensitivity at 12 dB Sinad 0,5 µV 
Audio output 2 W at 8 Ohm 
Audio disturbance max. 10% 
RF output power  High 25 W max./Low 1 W max. 
Spurious radiation High 80 dB/Low 60 dB 
Dimensions and weight 71 x 161 x 147 mm, 1300 g 

For further information please look into the english manual (576 kB pdf)

No ATIS possible. 
If you are travelling in holland, or german inland waters, you need an ATIS instrument, e.g. Furuno FM 2721 or Simrad RD68

Included in delivery:
RO 4500 instrument with bracket and microphone, power- loudspeaker and  NMEA cable, microphone hanger bracket
 

Radio Ocean 4500 DSC

out of production in 2006

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