2 meter radio transceiver

Types of 2 meter radio transceivers

A 2-meter radio transceiver, also known as a 2-meter ham radio, is a type of two-way radio that amateur radio operators use on the 2-meter band. This band lies between 144 and 148 MHz in the VHF frequency band and derives its name from the wavelength (2 meters) of the radio wave. Several transceiver models are available, each with unique features to meet specific communication needs.

Many radio enthusiasts prefer basic high-power 2-meter transceivers that offer good range and clear audio. Certain models have power amplifiers to increase output power and extend talk range. Analog knobs control frequency and channel selection on vintage units. They may also have power output, squelch, and RF gain potentiometers for a hands-on tuning experience.

If key features are a priority, a handheld radio transceiver offers flexibility by integrating both transmitter and receiver circuits into one compact device. Some may even have built-in GPS, allowing operators to communicate their precise location coordinates over ham radio channels.

High-power options enable increased signal strength, which translates to longer communication ranges. In contrast, low-power handheld models are ideal for portable operations during outdoor free-station setups or emergencies where space is limited. No matter the size, all walkie-talkies use rechargeable battery packs as power sources so they can be quickly recharged and reused multiple times without end.

Dual-band transceivers, which cover both the 2-meter and 70-centimeter bands, provide more communication possibilities, while multiband units give even greater frequency coverage. Advanced features like digital modes, touch-screen controls, built-in GPS, and wide receive range give users additional capabilities for efficient communication. With such a diverse selection of 2-meter transceivers equipped with different functions tailored to various operating preferences, there is sure to be a suitable model that can satisfy specific requirements for ham radio activities.

Features and Functions of 2 Meter Radio Transceivers

2m radios come with various features that enhance their functionality and user experience. Here are the various feature highlights that may be useful for buyers:

• Dual Band/Multiple Bands: While 2-meter radios primarily operate in the 144-148 MHz band, some transceivers cover multiple bands (e.g., VHF and UHF) to explore more frequencies.
• Cross-Band Repeat: Some 2m radios can repeat signals received on one band and retransmit on another, useful for bridging communications gaps between ham bands.
• Multi Mode Operation: In addition to FM, 2m radios may support multiple operating modes, including single sideband (SSB), amplitude modulation (AM), digital modes (e.g., FT8, PSK31), for expanded communication options.
• Wide Receive Range: Some models allow users to listen (but not transmit) on a wide range, such as from the AM broadcast band to shortwave to police/fire/EMS.
• Digital Signal Processing (DSP): Integrated digital signal processing can improve reception with features like noise reduction, filter tuning, and multipath distortion correction.
• NOAA Weather Radio Reception: Many 2m radios include weather band reception to monitor National Oceanic and Atmospheric Administration weather alerts and forecasts.
• Memorized Channels: All 2m radios allow users to store commonly used frequencies as memory channels for quick recall.
• Scan/Squelch Functions: Scan helps find active channels automatically, while squelch mutes the audio until a strong signal is received.
• Power Output Levels: Most units have multiple selectable power levels, such as 1W, 5W, 10W, 25W, and 50W, to save battery or increase range as needed.
• External Microphone/Input Jack: A microphone jack allows users to connect an external mic for hands-free operation or to record messages digitally.
• Emergency/Patrol Bands: Some 2m radios include dedicated patrol and emergency channels for public safety organizations.

Applications of a 2 Meter Radio Transceiver

The following are some uses of a 2 Meter ham radio transceiver:

• Emergency services: In cases of natural disasters like pandemoniums, the 2m radio becomes the go-to means of communication because of its ease of use. Irrespective of the situation at hand, the club or ham radio operators are always ready to help out. People who are in distress or need assistance will dial 911, but if a dispatcher feels the need for further assistance, they will call the ham radio operators, and they will set up a link or channel between the two to help out.
• Emergency communication systems: With the 2m radio, emergency communication systems can be set up where information can be passed in case ham operators are needed. Repeaters can be linked, and information can be passed.
• Emergency coordinators: VE groups with emergency coordinators who have the 2m band can coordinate and help set up temporary ham radio emergency channels.
• Mobile clinics: These are created for people on the go. When these mobile clinics do not have internet access, they can use the 2m radio to connect with others and share information about what they are doing, where they are located, and what assistance people can provide for them to reach out, which can also help air ambulances and others to reach on time to help out.
• Skywatch: A 2 meter band radio communication system can be used to help coordinate and assist in sky watch situations through the monitoring of airways, which can help in situations of distress where someone can reach out through the liaisons of 2m ham radio.
• Advocacy coordination: Advocacy coordination comes in the form of coordinating groups of people who are working toward the same purpose or goal. You don't need the internet for this to occur. It can be done through the connected means of a 2m radio, where people can work toward the same goal and assist those on the front lines through camping groups.
• Search and rescue missions: Land-based missions can involve 2m radios, where search and rescue activities can occur and coordinate efforts of many individuals by being on the 2m band where they can link together and coordinate where they can assist.
• Health communication: In many different communications, health coordination can help with ham radio volunteers who are positioned for emergencies that can help in the situation where the 2m band can assist in time for those who need to be helped in medical situations.
• Disaster relief: The 2m band can assist in organizing disaster relief through many operators who can help coordinate relief efforts by multitudes of ham radio operators who have access to the 2m band to coordinate disaster relief efforts.

How to choose 2 meter radio transceiver

Buying a two-meter ham radio transceiver isn't easy. There are many factors to consider before making a final decision. Below are some important things to consider when buying a new or used 2m transceiver:

• Price and Budget

  Price is often the most important factor people consider when buying radios. Two-meter band radio prices can differ depending on the functions, features, and whether they are new or used. As expected, models with the most advanced technology tend to cost more. Many enthusiasts start with the least expensive option and upgrade to more costly models as they gain more experience. Buying a used 2m radio can be a less expensive way to get more advanced features.

• Power Output

  The power output of the 2m transceiver affects its range. A higher power output means the user can reach farther with the radio. However, higher power output radios also need more battery. Most beginners start with radios that have 5 watts of power. This allows them to communicate within a few miles. A model with 10 to 15 watts is a good middle-ground option. First responders and those needing to go long distances often choose radios with 20 watts or more.

• Frequency Range

  The transceiver frequency range will determine the 2m band channels available to listen to and communicate on. Beginners may find the 144.200 — 144.275 MHz range sufficient. More experienced users often select radios that cover a wider span, like 144.000 – 148.000 MHz. Expanding the frequency range gives access to more channels for learning new skills and increased operating flexibility.

• Size, Weight and Durability

  The size, weight, and durability of the transceiver should be looked at, especially if it is going to be used in outdoor or mobile situations. Small-sized 2m band ham radios are often more convenience because they take up less space in cars and backpacks. Features like waterproofing and rugged construction protect radios from damage.

• Users Needs and Operating Environment

  The user's needs and operating environment should be considered before buying 2m radios. An emergency responder will need different features from a hiker or technician. Think about where the radio will be used most often and what channels and functions are required.

Q & A

Q1: What antenna should be used for a 2-meter radio?

A1: The VHF 2m band has many antenna options, including simple dipoles, Yagi beams for FM satellite and simplex, and verticals for weak signal and mobile operating. Antennas should be resonant on 144-148 MHz with low SWR across that range.

Q2: What channel does the 2-meter radio transceiver use?

A2: The 2-meter band has many channels and amateur radio transceivers that include simplex frequencies for direct radio-to-radio communication. Some popular simplex frequencies are 144.200 MHz for FT8 and 144.246 MHz for CW.

Q3: What are the popular modes for 2-meter band radios?

A3: FM is the most common mode for casual 2-meter band communication, especially for repeaters and simplex nets. SSB and CW are popular for weak signal and long-distance VHF contesting. Digital modes like FT8, APRS, and packet also use 2m frequencies.