Marine VHF channels are divided into categories that are determined by the type of messages broadcast. The most commonly used channels include:

• Channel 16 - DISTRESS SAFETY AND CALLING - To get the attention of another station (calling) or in emergencies (distress and safety).
• Channel 6 - INTERSHIP SAFETY - For ship-to-ship safety messages and for search and rescue messages and ships and aircraft of the Coast Guard.
• Channels 96, 68, 69, 71, 72, 78, 794, 804, 677 - NONCOMMERCIAL - Messages must be about the needs of the ship. Usually, messages concern fishing reports, rendezvous information, and repair and berthing information. (Use Channels 67 and 72 only for ship-to-ship messages.)
• Channels 13 and 67 - NAVIGATIONAL - (Also known as the bridge-to-bridge channel.) Messages must be about navigation with other ships. Messages must be short. Power output must not be more than 1 watt. This is also the main working channel at most locks and drawbridges.

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VHF Radio Usage Tips

• Be sure the frequency (or "channel") is "clear" before you transmit. Think how you would like it if someone interrupted your conversation.
• Recommendation: when you turn to a repeater or a simplex frequency, listen for a good half-minute before transmitting.
• Using Q-signals too often is bad form. Although Q-signals have a very valuable place in Amateur Radio, they are not universally accepted on F.M. voice channels. Using them during EVERY TRANSMISSION is really annoying. Recommendation: use Q-signals sparingly. Once in a while. Not very often.
• Using "clear and monitoring" is not really necessary. Neither term is required by the FCC or anybody else. If you call another amateur and that person does not answer, it is not necessary to advise "clear." You have already identified your station and any other identification is superfluous.
• Recommendation: use "clear" only to mean that you are shutting down operation and will not be there to answer any subsequent calls. Under normal circumstances, when you are finished with a contact but will continue listening, it is sufficient (and just right!) to merely say your call sign.
• Contrasting Recommendation: If you attempt to contact someone and there is no answer, you can notify others that you are finished by "signing clear." You can do this by saying, "KF6xxx clear," or "no contact, this is KF6xxx clear W6ABC repeater." This allows someone who may have been standing by to go ahead and make his or her call.

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Protocol

Be sure to learn the usage, protocol and/or policies of repeaters you are using. Just because a repeater is "there" does not mean that you are welcome to switch to it and use it for long, extended rag-chews. Some repeaters welcome newcomers, some do not. A sensible person doesn't want to spend time where s/he is not welcome. Even though your license allows you to operate on any frequency within the bounds of your license class, a wise amateur avoids "closed" repeaters and repeaters that are operated by small, unfriendly groups.
Recommendation: listen to a repeater for a while before you make a decision to use it. You might even ask someone on the repeater if you are welcome to use it for occasional conversations.

• Using the term "for ID" is not necessary. The should be no reason to transmit your call sign other than to identify your station. Identification is required every 10 minutes during a conversation and at the end of a conversation or series of communications. Conversations need not come to a halt while you identify. ("Stand by, everyone, while I say my call sign.") Simply say your call sign once within 10 minutes.
• Recommendation: while talking, say your call sign once every ten minutes. Don't say "For ID, This is KF6xxx." Don't say "For license preservation purposes, this is KF6xxx" more than once or twice per year. Do not over-identify.
• Contrasting Recommendation: if you hear someone say "for ID," They may be trying to gently remind you that 10 minutes have passed and you should identify your station. Take the hint and say your call sign the next time it is your turn to talk.

In years past, FCC Rules required mobile hams to not only say their calls sign, but to say where They were operating, giving both the city and the call sign area. You will still hear some hams saying, "...Mobile 6" after their call sign. This means that They are operating "mobile, in call sign area 6." This is no longer required but it sometimes good to know. When leaving California, some hams will keep track of what call sign area They are in, and say, "...mobile 7," or "...mobile 1," or whatever.
Recommendation: none

Certain types of jargon are easily recognizable as being "CB" terms. "What is your personal?" when you mean "what is your name?" "I'm on the side," when you mean you are "listening" or "monitoring." Although there is nothing "wrong" with CB, these terms are neither generally used nor appreciated on Amateur Radio.

• Recommendation: avoid CB-style jargon and terms. Generally speaking, plain English is better: "my name is xxxx, what is yours?"

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Emergencies

Different repeaters handle emergency communications in different ways. A general guideline is this: if you are on an unfamiliar repeater and you have emergency traffic, say so! Example: "Can someone help me contact the Highway Patrol?" or "I need help contacting the Fire Department." Asking if "anybody is monitoring" the repeater may sound like an attempt to start a casual conversation. On many repeaters, you could be ignored. However, if you state that you have emergency traffic, people on most repeaters will drop what They are doing to help you. However, if you are monitoring a repeater and someone asks for emergency assistance and you cannot help, BE SILENT! There are few things stupider than someone breaking in to say that They would help except that They forgot the codes, or that They left their radio with the Touch-tone (TM) pad at home, or that their home phone is busy so They can't make the call for you.
Recommendations:

• If you have emergency traffic, say so immediately.
• If you can help, please do.
• If you cannot help, do not transmit

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Repeat

In this day of scanners, scanning mobile radios, scanning portable radios, dual- & triple-band radios and multiple radios in the car or shack, you could miss making contact with someone because your radio is scanning several channels or bands. If you know that the person you are calling is sitting next to the radio waiting for you, you can make your call very simple: say his/her call, then your own. However, if your friend has a scanning radio or listens to several radios, it is possible that he/she could miss your call. You should call twice: say the other station's call twice, then your own. Pause for a half-minute or so and try again. It might also be a good idea to try again in 4 or 5 minutes, in case the called person's scanner was stopping on a long, drawn-out conversation. And if you know that the called station is listening to more than one frequency, you can call and say "on [such-and-such] repeater" to give them a hint as to which microphone to pick up or which band to select.

• Recommendation: call twice.

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"73"

There is no "s" in the salutation "73." You may hear people using the term "73" to each other, meaning "best wishes." (Other hams may use the term "88," meaning "love and kisses." You will hear others saying "73s" and "88s" (wrong!) You might even hear someone saying [cringe!] "threes and eights and all those good numbers!" Yecch! Negative!

Proper usage would be similar to this:

• Voice: "OK, Dan, seven-three and I will talk to you later, WA7AII."
• Voice: "73 for now, WB6KHP clear."
• CW: "W2EOS de K8JW CUL OM 73 SK."
• CW: "N6QYU de KB6OWT 73 88 SK."

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Logbook

There is no specific requirement for keeping logs of use of your amateur radio station except for International Third-party Traffic. However, a good way to keep track of your communications is to use a Log Book, available at some amateur radio dealers.
One method is this: make an enty in the "date" column for each day your operate your station. Each time you contact a "new" station, make entries for call sign, name, frequency, mode and any other information you think necessary or interesting. You probably have no need to make log entries for people you talk to every day, with the possible exception of logging emergency traffic that you may handle for others.

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Standing By

Sometimes while talking to another station, it is necessary to ask the other person to "stand by." This may be caused by (a) a driving situation needing immediate attention to avert a crash, (b) a spouse or child walking into the "shack" with a message, (c) placing your order at a drive-up window, etc. The proper response, when requested to "stand by," is silence. Generally it will only take a moment and the other station will be back. If you feel it necessary to say something, then say, "[call sign] standing by." If you respond to "stand by" with a long, drawn-out acknowledgment, it serves no purpose and the person asking you to "stand by" isn't listening anyway.

Keep in mind that when you are operating in a noisy environment, you do not have to be able to hear yourself talking. There will be those instances where you are helping with emergency communications for a parade or you are at an airport or other noisy place. If you shout into the microphone loud enough to hear yourself, you are distorting the signal so badly that the person on the other end may not be able to hear or understand you. It can be very difficult to operate under these conditions (loud background noise), but it is a skill that you would do well to learn.

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KHT

One of the most important things for new hams to learn is to "K-H-T." That is "key, hesitate, talk." You must consciously learn to push the mic button, pause slightly, and then begin speaking. If you push the button and speak simultaneously, the first word or the first part of a word may be cut off. This does not facilitate effective communications. Hopefully, if you learn to do it correctly from the first day, it will become subconscious -- you will do it automatically. If this is the case, you will earn the respect and admiration of your peers. If not, you will be forever labeled as a substandard operator.

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Profanity

Try to keep your language polite. Profanity and discussions of bodily functions should be off limits - not because of government rules, but because it's the right thing to do. Generally, other hams and their family members don't want to hear conversations that are not of the "G-rated" variety.

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Note- This article was written by by Dave Schultheis WB6KHP San José, California. for more information please visit http://www.accesscom.com/~dave6592/usertips.html