# How long is a 80 meter wire antenna?

Table of Contents

## How long is a 80 meter wire antenna?

Read more about . . . . Dipole Length Calculations.

Approximate Lengths for HF Ham Band Dipole Antennas
Band (MHz) Length (Feet) Length (metres)
3.5 (80 metres) 137 42.2
7.0 MHz (40 metres) 68.5 21.1
10.1 (30 metres) 47.5 14.7

### What is the gain of a 1/4 wave vertical antenna?

With a normal sloped roof shape and mid-car size ground, the 1/4 wave has -6.59dBi at 2 degrees TO. Maximum gain is 3.05dBi.

#### How long do radials need to be for a vertical antenna?

Butternut recommends a minimum of 30-60 radials at 65 feet each. Hy-Gain suggests numbers based on a chart similar to Table 1 below. It’s obvious there isn’t a consensus among vertical antenna makers. If you need a number to start, twenty 32-foot radials will give you a workable system with most vertical antennas.

Is a half-wave antenna better than a quarter wave?

A half-wave antenna is a good choice when your entire device is much smaller than a quarter-wavelength, or when you are building an antenna that is physically separated from the transmitter.

What is the best antenna length?

The most effective antenna has the same length as the length of the wave it is used for. For practical purposes, half or a quarter of that length will suffice. Most LoRa antennas are a 1/4 wavelength.

## What is the size of the 80 meter band antenna?

The large diameter yields broadbanded coverage of the 80 Meter Band. It’s an 1/8 wave vertical on 160 meters also. This antenna is 58 ft tall and is mounted on a hinged base.

### How tall is a 1/4 wave antenna?

In the summer of 2010, I decided to construct a 1/4 wave 80 meter vertical using 3″ OD Aluminum Tubing. The large diameter yields broadbanded coverage of the 80 Meter Band. It’s an 1/8 wave vertical on 160 meters also. This antenna is 58 ft tall and is mounted on a hinged base.

#### What is the best HF vertical antenna for business?

Try Business Prime free. Hy-Gain AV-18VS – 10/12/15/17/20/30/40/80 Meters HF Vertical Antenna. The Hy-Gain Model 18V-S is a trapless, vertical antenna which is manually tuned to any band, 10 thru 80 meters, by a simple adjustment of the feed point on the base inductor.

What is a short vertical antenna for 80 MTR?

This page is a collection of short vertical antennas that I built over the years, for the 80 mtr band. With “short” I mean between 3 and 10% of λ. That is a lot shorter than a standard 1/4 λ vertical. Anything less than 75% of full-size is actually a real compromise.