Section 8.2: Voice Operating Techniques #

An ordinary HF voice contact begins in one of three ways: you answer a call, invite someone to answer yours, or join a conversation already in progress. Each requires a different opening, but all depend on making yourself understood and leaving time for a reply.

Make Your Voice Ready to Transmit #

Before calling, check the speech settings established in Section 7.3. Speak at a normal level and use the manufacturer’s recommended ALC indication to guide microphone-gain adjustment:

Key Information: Transmit audio or microphone gain is typically adjusted for the proper ALC setting on an SSB transceiver.

Adjust microphone gain while speaking normally, keeping the RF power setting at the level you intend to use. Follow the radio’s voice-mode procedure; its recommended ALC indication may differ from the digital-mode guidance in Section 7.5.

You can switch between transmit and receive with PTT or let your voice operate the switch:

Key Information: Voice Operated Transmission (VOX) allows hands-free operation compared to Push-To-Talk (PTT).

VOX sensitivity determines what audio level starts transmission, and its delay determines how long the radio waits after you stop speaking before returning to receive. Anti-VOX reduces the chance that audio from the radio’s speaker will trigger transmission.

Set VOX so that normal speech starts the transmitter without room noise keeping it active. Check that the beginning of a word is not cut off and that the radio returns to receive between turns. PTT is often the better choice in a noisy room or whenever you prefer direct control.

Check Before Starting a Contact #

An apparently quiet frequency may be in use. You might hear only one side of a contact, or the participants may be between transmissions. Listen before calling, and leave room for nearby signals as well:

Key Information: When selecting an SSB transmitting frequency, a minimum separation of 2 to 3 kHz from stations on adjacent frequencies should be used to minimize interference.

Allow more separation when signals are wider or a strong nearby station still causes interference. Account for the sideband and bandwidth you will transmit, as discussed in Section 7.3.

After listening, check whether another station is using the frequency:

Key Information: Before calling CQ on an apparently clear frequency, send “QRL?” on CW followed by your call sign, or ask if the frequency is in use on phone, followed by your call sign.

For voice, “Is this frequency in use? This is W1ABC” is enough. Pause for an answer, and repeat the check if needed. If someone replies that a contact is underway, choose another frequency. A fixed listening time does not establish that a frequency is clear.

Calling and Answering #

Callsigns contain letters that can sound alike through noise. Standard phonetic words help separate them:

Key Information: Alfa, Bravo, Charlie, and Delta are examples of the NATO Phonetic Alphabet.

The A word is also commonly written Alpha. Using the standard words gives the listener a familiar set of sounds to recognize. W1ABC becomes “Whiskey One Alfa Bravo Charlie.” Speak clearly at a steady pace; repeat the part the other operator missed rather than changing every phonetic word.

To invite a contact with any available station, call CQ:

Key Information: To indicate that you are looking for an HF contact with any station, repeat “CQ” a few times, followed by “this is” and your call sign a few times, then pause to listen. Repeat as necessary.

For example:

“CQ CQ CQ, this is W1ABC, Whiskey One Alfa Bravo Charlie, calling CQ and standing by.”

The listening pause is part of the call. A station cannot answer while you are still transmitting. When answering someone else’s CQ, wait for that pause and give their call followed by yours: “W2XYZ, this is W1ABC, Whiskey One Alfa Bravo Charlie.”

Joining a conversation already in progress is different from starting one:

Key Information: The recommended way to break into a phone contact is to say your call sign once.

Wait for a pause and give your call. Let the participants acknowledge you before adding to the conversation. If they do not answer, they may not have heard you; avoid repeatedly calling over their exchange. CQ invites a new contact, so it is not the right opening here.

Exchange What the Other Operator Needs #

Once the stations have identified each other, a signal report helps establish how much information the path can support:

Key Information: Signal reports are typically exchanged at the beginning of an HF contact to allow each station to operate according to conditions.

Section 7.2 distinguished readability from signal strength. Apply that distinction here: “You’re five and two, fully readable but weak” gives different information from “Your signal is strong, but the audio is distorted.” A description of fading or interference can be more useful than a higher strength number.

In a short first contact, you might say:

“W2XYZ, you’re five and seven. My name is Alex, and I’m in Denver, Colorado. How do you copy? W1ABC.”

The other station can return a report, name, and location. The exchange can end there or continue with equipment and other topics. If you miss something, identify the part you need: “Please repeat your city” tells the other operator exactly what to send again.

When signals fade, shorten your turns and confirm important details before continuing. Leave a pause between transmissions so another participant can speak or a station with urgent traffic can be heard. Identify at least every ten minutes during a communication and at its end. A closing “Thanks for the contact. W1ABC, clear” lets the other operator know you are finished.

With voice, you can ask for a repeat or invite a reply in ordinary words. CW operators need those same options, but use short codes to avoid spelling out each request.