End-fed or a vertical?

Posted on 3rd Apr 2023

When it comes to Parks on the Air activations, choosing the right antenna can significantly impact your operating experience. Two popular choices for portable operations are end-fed antennas and vertical antennas. Each type has its own set of pros and cons, so let's delve into the details:

End-Fed Antenna:

Pros:

Portability: End-fed antennas are often lightweight and easy to set up, making them an ideal option for portable operations in some parks and forests.

Multiband Capability: Many end-fed antennas are designed to cover multiple bands with the help of a tuner, providing versatility in varied operating conditions.

Simple Setup: End-fed antennas typically require minimal installation, with one end elevated and the other connected to your radio.

Cons:

Grounding Issues: End-fed antennas can be prone to RF grounding issues, especially when operating in less-than-ideal ground conditions.

Tuner Dependency: Achieving a low SWR across multiple bands with an end-fed antenna usually requires the use of an antenna tuner, potentially adding complexity to your setup.

Radiation Pattern: The radiation pattern of end-fed antennas may not be as optimal as that of some other antenna types, potentially affecting signal propagation.

Vertical Antenna:

Pros:

Efficient Radiation Pattern: Vertical antennas are known for their efficient radiation patterns, providing good omnidirectional coverage which can be ideal for park activations.

Ground Independence: Vertical antennas are less reliant on having a perfect ground plane, making them easier to set up in various locations.

Low Angles of Radiation: Vertical antennas can often offer lower take-off angles, which can be beneficial for long-distance communication.

Cons:

Size and Setup: Vertical antennas can be easily setup from a hitch mount, strapped to your vehicle, or lashed to some other stationary object. Verticals can be rigid tubing or even telescoping poles with wire inside or spiraled around the outside which can be convenient for some park environments.

Bandwidth Limitations: Some vertical antennas have narrower bandwidths, requiring adjustment when switching frequencies or bands.

Susceptibility to Noise: Vertical antennas can be more susceptible to local noise sources, which might affect overall signal quality.

In conclusion, both end-fed and vertical antennas have their own strengths and weaknesses when it comes to POTA activations. Choosing the right antenna for your needs will depend on factors such as portability, operating conditions, and desired performance characteristics. Experimenting with both antenna types in different park settings can help you determine which option works best for your specific operating style and preferences.