7. PRODUCT SUPPORT INQUIRIES
If you have any questions or comments regarding the use of the HX370S, you can visit the STANDARD HORIZON Web site (www.standardhorizon.com), send an
8. CHANNEL ASSIGNMENTS
Tables on the following columns list the VHF Marine Channel assignments for U.S.A. and International use. Below are listed some data about the charts.
1.VTS. Where indicated, these channels are part of the U.S. Coast Guard’s Vessel Traffic System.
2.Alpha channel numbers, that is, channel numbers followed by the letter A (such as Channel 07A) are simplex channels on the U.S.A. or Cana- dian channel assignments whose counterparts in the International as- signments are duplex channels. International channels do not use “Al- pha” numbers. If you call the Coast Guard on Channel 16, they will some- times ask you to “go to channel 22 Alpha.” This is a channel assigned to U.S.A, and Canadian Coast Guards for handling distress and other calls. If your radio is set for International operation you will go to Chan- nel 22 instead of 22A, and will not be able to communicate with the Coast Guard. To use Channel 22A, your radio must be set for USA or Canada operation, usually by a U/I/C (USA/International/Canada) con- trol or combination of controls. Channel 22 (without an “A” is an Interna- tional duplex channel for port operations. Some radios indicate an “A” adjacent to the alpha channels on the display; on others “Alpha” is not indicated but the proper channel is selected based on the U/I/C setting.
3.
4.The S/D column on the chart indicates either S (simplex) or D (duplex). Simplex means transmitting and receiving on the same frequency. Only one party at a time can talk, unlike a telephone. Be sure to say “over” and release your microphone
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