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THE RF NOTEBOOK

Technical Guides & Articles

Educational guides, radio theory, antenna modeling, software tools, and operating techniques authored by members of the Bald Rock Amateur Radio Club.

Close-In HF: Understanding NVIS for Regional Communication

Close-In HF: Understanding NVIS for Regional Communication

Introduction: What Is NVIS? Near Vertical Incidence Skywave (NVIS) is a specialized HF propagation method where signals are sent a...

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Embrace the Outdoors: Portable Field Day Operations

Embrace the Outdoors: Portable Field Day Operations

Why Portable Ops? Field Day isn’t just a contest—it’s a hands-on, emergency-communications drill where hams set up stations in par...

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Why Do Radio Waves Get Weaker As They Travel Over Distance?

Why Do Radio Waves Get Weaker As They Travel Over Distance?

Have you ever wondered why radio waves seem to get weaker the further you get from the source of the waves? Well, they don't! They...

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Do I Need A Contact Logging Software?

Do I Need A Contact Logging Software?

Using a contact logging software is important for amateur radio operators as it allows them to keep a record of their contacts wit...

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Ham Radio Hotspots - What Are They?

Ham Radio Hotspots - What Are They?

Ham radio hotspots are becoming increasingly popular among amateur radio operators. These devices allow users to connect to the in...

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Antenna Tuners & Best Practices In Using Them

Antenna Tuners & Best Practices In Using Them

Get maximum power to your antenna by learning how to hook up and use a tuner to properly "trick" your rig! For many ham radio enth...

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Basic Antenna Fundamentals

Basic Antenna Fundamentals

An antenna is an essential component in radio communication systems that facilitates the transfer of information from a transmitte...

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