Lmst

Pop Shop Radiogram this week captured with a KiwiSDR at Elizabeth City, NC USA. Morgan City, LA USA WA5107SWL

#PopShopRadio #MFSK #DigitalModes #SWL #Shortwave #Radio #WRMI

https://youtu.be/CdGG_5rKNzw
KBC Digital this week captured with a KiwiSDR at Elizabeth City, NC USA. Morgan City, LA USA WA5107SWL

#KBC #MFSK #DigitalModes #SWL #Shortwave #Radio #WRMI

Shortwave Radiogram, del 1 al 14 de Mayo 2025: programa 400 https://elradioescucha.net/2025/05/02/shortwave-radiogram-del-1-al-14-de-mayo-2025-programa-400/ #DigitalModes, #Frecuencias, #MSFK64, #OndaCorta, #Shortwave, #SW, #SWL

SWRG 400 9265 2330-2400

#SWRG #MFSK #DigitalModes #SWL #Shortwave #Radio #WINB

Amateur Radio Digital Mode Adapter #TindieBlog #AmateurRadio #DigitalModes #JT9 #RTTY #PSK31
https://blog.tindie.com/2025/04/amateur-radio-digital-mode-adapter/

https://youtu.be/Gxq-RfbgpI4

Pop Shop Radiogram via WRMI this week captured with a KiwiSDR in Elizabeth City, NC USA. Morgan City, LA USA WA5107SWL

#PopShopRadio #MFSK #DigitalModes #SWL #Shortwave #Radio #WRMI

https://youtu.be/hSpx5-miPuM

KBC Digital via WRMI this week captured with a KiwiSDR at Maurice, LA USA Morgan City, LA USA WA5107SWL

#KBC #MFSK #DigitalModes #SWL #Shortwave #Radio #WRMI

WSPR Watch for IOS version 4.18 released

WSPR Watch for IOS is a utility for ham radio users of the WSPRnet, PSKReporter or Reverse Beacon network. Quickly shows who can hear you and details of each spot.

Tap a spot in the table to look up the call on QRZ.com.

Export produces a tab delimited CSV file that can be sent to Numbers for sorting, filtering and graphing beyo ...
https://machamradio.com/blog/2025/04/25/wspr-watch-for-ios-version-4-18-released/

#DigitalModes #iOS #WSPR

SmartSDR for MacOS version 2.9.70 Now Available

Marcus, DL8MRE has released the latest version of SmartSDR for MacOS, the Official FlexRadio Systems® Client for your Mac.

SmartSDR is a full featured FlexRadio client that enables your Mac to operate your FlexRadio device. It is fully compatible to SmartSDR v1, v2 (including SmartLink) and v3 ...
https://machamradio.com/blog/2025/04/25/smartsdr-for-macos-version-2-9-70-now-available/

#DigitalModes #FlexRadio #macOS #RigControl #SDR

Shortwave Radiogram, del 24 al 30 de Abril 2025: programa 399 https://elradioescucha.net/2025/04/25/shortwave-radiogram-del-24-al-30-de-abril-2025-programa-399/ #DigitalModes, #Frecuencias, #MSFK64, #OndaCorta, #Shortwave, #SW, #SWL

SWRG 399 9265 2330-2400

#SWRG #MFSK #DigitalModes #SWL #Shortwave #Radio #WINB

Understanding Ham Radio Operating Modes: A Beginner’s Guide to SSB, CW, FM, and More

1,756 words, 9 minutes read time.

As you consider diving into the fascinating world of amateur radio, one of the most important areas to familiarize yourself with is the various operating modes used by ham operators. These modes define how signals are transmitted, which directly impacts the quality, reach, and efficiency of communication. In this guide, we’ll explore the most common ham radio operating modes, including Single Sideband (SSB), Continuous Wave (CW), Frequency Modulation (FM), and more. Understanding these modes will help you not only get a better grasp of how amateur radio works but also make you a more competent operator as you progress toward getting your ham radio license.

What Are Ham Radio Operating Modes?

Ham radio operating modes refer to the different ways a ham radio signal can be transmitted and received. Each mode has its own characteristics, advantages, and limitations, which affect the type of communication it is best suited for. Whether you’re communicating locally or across continents, choosing the right mode can make all the difference in the quality of your transmission. As a newcomer to ham radio, learning about these modes will help you choose the most suitable method for various communication scenarios. It’s a critical aspect of mastering the hobby and ensuring effective communication on the airwaves.

An Overview of the Common Ham Radio Operating Modes

Single Sideband (SSB)

Single Sideband (SSB) is one of the most popular modes used in amateur radio, particularly for long-distance communication. SSB is a type of amplitude modulation (AM) where only one sideband of the signal is transmitted, reducing the bandwidth and power requirements compared to traditional AM transmissions. This makes SSB particularly advantageous for communication over long distances, especially on the HF (High Frequency) bands.

In SSB, the carrier wave is suppressed, and only the upper or lower sideband is transmitted. This results in more efficient use of the frequency spectrum, allowing for clearer signals with less interference. Many ham radio operators prefer SSB for global communication because it’s capable of reaching farther distances with less power, which is important for operators who are working with limited equipment or those trying to make contacts in remote areas.

According to the ARRL (American Radio Relay League), SSB is particularly useful for DX (distance) communications. The frequencies used for SSB typically fall within the HF bands, and operators use SSB to make voice contacts, known as “phone” contacts. The convenience and efficiency of SSB have made it the go-to mode for many long-haul communications on the ham bands (source: ARRL – Ham Radio Modes).

Continuous Wave (CW)

Continuous Wave (CW) mode is a form of Morse code communication. In CW, a signal is transmitted as a series of on-off keying (dots and dashes), which represent letters and numbers in Morse code. While this may seem old-fashioned to some, CW remains one of the most effective modes for weak-signal communication, particularly under challenging conditions where voice transmissions might not be possible.

One of the biggest advantages of CW is its ability to operate effectively in low signal-to-noise conditions. The simple nature of the transmission makes it less susceptible to interference, and even very weak signals can be received and understood using CW. This mode is commonly used by operators seeking to make contacts in very distant locations, especially when there is a lot of atmospheric interference or in regions with poor propagation conditions.

CW is still widely used in ham radio today, especially for operators who are focused on maximizing their reach with minimal equipment and power. The ability to send Morse code manually or via automatic keyers gives CW a distinct appeal to those looking to hone their skills in a very traditional aspect of ham radio. In fact, many experienced ham radio operators swear by CW for its efficiency and ability to make reliable contacts even in adverse conditions (source: K7ON – CW and SSB Basics).

Frequency Modulation (FM)

Frequency Modulation (FM) is another popular mode, particularly on VHF and UHF bands. Unlike AM or SSB, where the amplitude or frequency is varied, FM works by modulating the frequency of the carrier wave. This results in high-quality, noise-resistant signals that are well-suited for local communications. FM is the standard mode used by repeaters, which are devices that extend the reach of ham radio signals by retransmitting signals received from lower-power stations.

FM is especially favored for short-range communication, such as local contacts or communication with repeaters, and it is most commonly used in the 2-meter and 70-centimeter bands. FM’s primary advantage is its resilience to interference, making it perfect for urban areas where noise is more prevalent. The clear, voice-quality signal that FM provides makes it ideal for informal conversations or emergency communication within a local area.

One of the main advantages of FM is the fact that once the signal reaches a certain level, the sound quality doesn’t degrade much, even if the signal strength weakens. However, FM has a limited range compared to SSB or CW and typically isn’t used for long-distance communication. The quality and simplicity of FM make it ideal for casual use and for beginner ham radio operators who are starting to experiment with their radios (source: Ham Universe – Modes of Operation).

Digital Modes

Digital modes have gained significant popularity in recent years due to advancements in technology and the ability to send information more efficiently. Digital modes, such as FT8, PSK31, and RTTY (Radio Teleprinter), use computer-generated signals to send and receive data. These modes can operate at very low power levels, which makes them perfect for weak signal propagation or for operators looking to maximize their battery life.

One of the most popular digital modes is FT8, a mode designed for weak-signal communication that allows operators to make contacts under extremely low signal-to-noise conditions. FT8 operates in narrow bandwidths, allowing multiple contacts to be made on a single frequency, even when propagation is poor. PSK31 is another widely used digital mode, particularly for keyboard-to-keyboard communications. It uses phase shift keying to transmit signals that can easily be decoded by a computer.

Digital modes are a fantastic way for new ham operators to make contacts with minimal power and without needing to master Morse code or voice communication. Digital signals are often more reliable in conditions where noise and interference would otherwise render voice or CW transmissions unusable. Many operators appreciate the challenge of fine-tuning digital signals and enjoy the flexibility that digital modes offer in terms of communication techniques and automation (source: eHam – Understanding SSB (Single Sideband)).

Amplitude Modulation (AM)

Although it is less commonly used today, Amplitude Modulation (AM) still holds a place in ham radio, especially among enthusiasts who enjoy experimenting with vintage equipment. AM is a form of modulation where the amplitude of the carrier wave is varied in accordance with the modulating signal, typically a voice or music signal. AM has a characteristic “wide” signal, which takes up more bandwidth compared to SSB. This can result in interference with other stations operating on the same frequency, which is one of the main reasons AM has fallen out of favor for general communication.

However, AM still has its applications, especially in certain historical contexts or for specialized communication, such as in aircraft communications or vintage radio operations. Some ham radio operators prefer to use AM for nostalgia’s sake, or they might enjoy operating within the AM portions of the bands, which can often be quieter and less crowded compared to the SSB portions. For those who enjoy the history and evolution of radio technology, operating in AM mode can be a fun and rewarding challenge (source: QRZ – Ham Radio Operating Modes).

Why Learning These Modes is Important for New Hams

As a new ham, understanding the various operating modes available will help you communicate more effectively and efficiently. It allows you to select the best mode for each situation, whether you’re trying to make a local contact on FM, reach across the globe using SSB, or send a weak signal over long distances with CW or digital modes. Furthermore, many modes are used during contests, emergency communications, and special events, so becoming proficient in multiple modes will enhance your overall ham radio experience.

In addition to improving your communication skills, learning different modes will also help you gain a deeper understanding of how radio waves propagate and how various factors such as power, frequency, and modulation affect signal transmission. This knowledge will not only make you a better operator but also help you troubleshoot and optimize your station setup for various conditions.

How to Get Started with These Modes

Getting started with different ham radio modes doesn’t require a lot of advanced equipment. Many beginners start with simple radios capable of operating in FM mode and gradually progress to more sophisticated transceivers that support SSB, CW, and digital modes. Local ham clubs are a great place to connect with experienced operators who can help you learn the basics of each mode.

Once you’re familiar with the theoretical aspects of ham radio modes, you can begin experimenting on air. Start by making simple local contacts on FM, and then try making longer-distance contacts using SSB. As you gain experience, you can explore CW or digital modes, which offer unique challenges and rewards.

Conclusion

Understanding the various operating modes of ham radio is essential for any new operator who wants to make the most of their hobby. Whether you’re communicating locally on FM or making global contacts with SSB or CW, each mode has its unique advantages and applications. By exploring these modes, you’ll not only enhance your communication skills but also deepen your appreciation for the technical side of amateur radio. So, dive in, experiment with different modes, and enjoy the world of ham radio communication!

D. Bryan King

Sources

Disclaimer:

The views and opinions expressed in this post are solely those of the author. The information provided is based on personal research, experience, and understanding of the subject matter at the time of writing. Readers should consult relevant experts or authorities for specific guidance related to their unique situations.

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https://youtu.be/KvWAbvu-dMQ

Pop Shop Radiogram this week captured with a KiwiSDR at Elizabeth City, NC USA. Morgan City, LA USA WA5107SWL

#PopShopRadiogram #MFSK #DigitalModes #SWL #Shortwave #Radio #WRMI

https://youtu.be/mQukQgNoXLo

KBC Digital this week captured with a KiwiSDR at Maurice, LA USA. Morgan City, LA USA WA5107SWL

#KBC #MFSK #DigitalModes #SWL #Shortwave #Radio #WRMI

Shortwave Radiogram, del 17 al 23 de Abril 2025: programa 398 https://elradioescucha.net/2025/04/18/shortwave-radiogram-del-17-al-23-de-abril-2025-programa-398/ #DigitalModes, #Frecuencias, #MSFK64, #OndaCorta, #Shortwave, #SW, #SWL

SWRG 398 9265 2330-2400

#SWRG #MFSK #DigitalModes #SWL #Shortwave #Radio #WINB

Mastering FCC Regulations: Essential Rules Every Amateur Radio Technician Must Understand

1,582 words, 8 minutes read time.

In the world of amateur radio, understanding the rules and regulations is not just a matter of compliance—it’s about ensuring a responsible, safe, and enjoyable experience for everyone involved. As an amateur radio technician, navigating the intricacies of the Federal Communications Commission (FCC) regulations is crucial. These rules, primarily governed by Part 97 of the FCC regulations, outline the responsibilities, privileges, and limitations of amateur radio operators.

The purpose of this document is to break down the most critical FCC regulations that every technician should be aware of. Whether you’re a new technician preparing for your exam or an experienced operator seeking to ensure your activities are compliant, this guide will serve as your go-to resource for understanding the regulations that shape amateur radio practice in the U.S.

The Basics of Part 97 – The Core of Amateur Radio Regulations

The core of the FCC’s regulation of amateur radio lies in Part 97 of the FCC rules. Part 97 outlines the technical standards and operational rules that apply to all amateur radio stations in the United States. This part of the regulations defines how amateur radio operators may use the airwaves and the conditions under which they can operate.

Key definitions include:

Station: Any apparatus capable of transmitting or receiving radio signals.
Licensee: The person who holds an FCC-issued amateur radio license.
Frequency Bands: Specific ranges of frequencies allocated for amateur radio use.
Amateur Radio Service: A service that allows licensed individuals to use radio frequencies for non-commercial purposes, including experimentation, public service, and personal communication.

Part 97 is divided into subparts, each addressing specific issues, from licensing procedures to operational restrictions. Technicians must familiarize themselves with these regulations to avoid violations, which could lead to fines or revocation of their licenses.

Key FCC Rules Every Technician Must Know

As a technician, there are several fundamental FCC rules you need to be aware of. These rules cover a range of topics from licensing requirements to operating procedures and restrictions on transmissions.

Licensing Requirements:
To operate an amateur radio station legally, you must obtain a license from the FCC. The Technician license is the entry-level license, which allows you to operate on certain frequencies and bands. To qualify for a Technician license, applicants must pass a written exam that covers basic radio theory, FCC regulations, and operating practices.

Operating Guidelines:
Technicians have the privilege to use specific frequencies, primarily in the VHF and UHF bands, as well as a limited portion of the HF bands. However, the rules governing these frequencies come with specific power output limits. For example, technicians are permitted to use up to 200 watts of power on certain bands, while others may have more restricted power limits.

Restrictions on Transmissions:
Amateur radio operators are prohibited from using their stations for any form of commercial use or to transmit obscene or indecent content. Additionally, the FCC prohibits operators from broadcasting music or using their stations for paid public communications. The key here is that amateur radio is for non-commercial, personal use, as outlined under Part 97.113.

Emergencies and Public Safety:
Part 97 places a strong emphasis on the role of amateur radio in emergency situations. Technicians, like all licensees, must be ready to provide communication services in times of disaster or public safety needs. This could include aiding in local, state, or national emergency situations where conventional communication systems are down. Operators must follow specific procedures, like those in 97.403, to ensure that they act in the best interest of the public during emergencies.

The Technician License: Specific Rules and Privileges

As a Technician license holder, you are granted the opportunity to operate on several important amateur radio bands. These include:

VHF (Very High Frequency): Bands such as the 2-meter and 1.25-meter bands (144-148 MHz and 222-225 MHz).
UHF (Ultra High Frequency): Bands like the 70-centimeter band (420-450 MHz).
Limited HF (High Frequency): While Technician license holders cannot operate on all HF bands, they are allowed access to certain portions, such as the 10-meter band (28.0-29.7 MHz).

Understanding these frequency allocations and the privileges associated with them is crucial. As a Technician, you are not permitted to use the higher-power, longer-range frequencies available to General and Extra licensees, but you still have access to a wide range of local communication capabilities.

Common mistakes that new technicians make include unintentionally operating outside of their allocated frequencies or using excess power output. It’s important to always double-check the frequencies and power levels to avoid any accidental violations. Technicians should familiarize themselves with Part 97.301, which details the frequency allocations for each license class.

Operating Procedures and Etiquette

While technical knowledge is essential, so too is understanding the proper operating procedures and etiquette of amateur radio. In many ways, ham radio is a community, and operators are expected to follow certain social norms and protocols that maintain respect and order on the airwaves.

Correct Operating Procedures:

Always identify your station at the beginning and end of a transmission, and periodically during long transmissions. This is a legal requirement to ensure that the operator can be identified, as specified in 97.119.
Follow the established procedure for starting and ending communications. This includes giving your call sign at appropriate times and listening before transmitting to avoid interfering with other operators.

Etiquette:
The amateur radio community thrives on respect. Operators should avoid monopolizing frequencies, unnecessarily interfering with other communications, and using improper language. Basic etiquette not only keeps communication clear but helps build a sense of community among operators.

Recent Updates to Part 97 Regulations and What They Mean for Technicians

FCC regulations are not static—they evolve with the advancement of technology and changes in communication practices. Technicians must stay informed about updates to Part 97, as these changes can impact your operating privileges and responsibilities.

Some recent updates include modifications to band allocations and the adoption of new digital communication technologies, such as the use of digital modes like FT8 and DMR. Additionally, the FCC has introduced streamlined processes for license renewals and updates to the licensing system. Technicians should stay informed by reviewing changes to Part 97 as they are posted by the FCC and staying active in amateur radio organizations such as the ARRL.

Practical Examples and Case Studies

A few real-world examples can help illuminate the importance of understanding FCC rules:

Case Study 1: A Technician operator accidentally transmitted outside of their designated frequency on the 10-meter band. They received a warning letter from the FCC, reminding them to adhere strictly to their allocated bands as per Part 97.305.

Case Study 2: During a local emergency, a Technician operator was called to assist with communication. They followed the correct procedures and used their radio to provide vital information to emergency responders, exemplifying the critical role of amateur radio in public safety. This aligns with the purpose outlined in 97.401 and 97.403 regarding emergency operations.

These scenarios show the importance of understanding and adhering to the rules. Even small mistakes can lead to warnings or penalties, and proper adherence to procedures can ensure that you’re prepared to assist in emergencies.

Conclusion

In conclusion, mastering the FCC regulations as a Technician is crucial not only for compliance but for responsible, efficient operation on the airwaves. Understanding Part 97 is a key step in ensuring that your use of amateur radio remains within legal limits while helping to foster a community based on respect, communication, and public service.

For continuous learning and updates on amateur radio and FCC regulations, be sure to subscribe to our newsletter. Stay informed and connected with the amateur radio community!

D. Bryan King

Sources