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VHF Radio

VHF Radio. Level Two Class. Communication on a day 20 to 25 Km on a bad day maybe 3 to 10 Km. Licensing. Call Procedure. (Start call on channel 9, 16, or 68) Call- Interlude, this is Overture. Over. (wait 2 minutes for response then repeat)

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VHF Radio

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  1. VHF Radio Level Two Class

  2. Communication on a day 20 to 25 Km on a bad day maybe 3 to 10 Km

  3. Licensing

  4. Call Procedure • (Start call on channel 9, 16, or 68) • Call- Interlude, this is Overture. Over. (wait 2 minutes for response then repeat) • Response- Overture, this is Interlude. Over. • Call- Interlude, this is Overture; meet me on channel 72. Over. • Response- Overture, this is Interlude; we will meet you on 72. Over. • -Change channels—wait briefly- • Call- Interlude, this is Overture. Over. • Response- Overture, this is Interlude. Go ahead, Over. • Call- Interlude, what is your location? Over • Response- Overture, our location is Latitude ……., and our Longitude is …….. Over. • Call- Interlude, we confirm Lat of … and Lon of …. Thank you. This is Overture standing by on 9/16/ 68. Overture out. (Wait, then return to 16) • Response- This is Interlude standing by on 9/16/68. Interlude out. (Return to 16)

  5. DSC-Digital Selective Calling

  6. A Class A VHF/DSC radio makes use of the "Selective" in DSC by calling other DSC radios by their unique MMSI number. These radios usually provide an electronic notepad that stores names and MMSIs for other boats or shore stations. Another station can be called by selecting the name or number from the stored list, choosing the channel number on which you wish to communicate and pressing a button. A digital call containing the MMSI being called, the MMSI of your radio and the channel number on which you wish to communicate is sent on channel 70. The called radio recognizes its MMSI and alerts its operator to the incoming call by emitting a ringing tone. The radio automatically switches to the communication channel chosen by the caller, allowing voice communication to proceed with no further action required of either party. If your MMSI is stored in the called radio's memory the operator will be informed of your identity as in a land-line caller I.D. system. Depending on the particular capability of the radio, it may also provide call waiting alert and log calls received when the radio was unattended. Overall, a Class A DSC radio performs much like a cellular telephone.

  7. Rescue 21 coverage

  8. Call Procedure • (Start call on channel 9, 16, or 68) • Call- Interlude, this is Overture. Over. (wait 2 minutes for response then repeat) • Response- Overture, this is Interlude. Over. • Call- Interlude, this is Overture; meet me on channel 72. Over. • Response- Overture, this is Interlude; we will meet you on 72. Over. • -Change channels—wait briefly- • Call- Interlude, this is Overture. Over. • Response- Overture, this is Interlude. Go ahead, Over. • Call- Interlude, what is your location? Over • Response- Overture, our location is Latitude ……., and our Longitude is …….. Over. • Call- Interlude, we confirm Lat of … and Lon of …. Thank you. This is Overture standing by on 9/16/ 68. Overture out. (Wait, then return to 16) • Response- This is Interlude standing by on 9/16/68. Interlude out. (Return to 16)

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