Police Scanner Antenna Ultimate Guide

You can also read our full antenna guide here.

Before buying an antenna you will want to make sure you are not getting too strong of a signal causing ‘signal overload’ or ‘attenuation’. This happens sometimes in metro areas if you’re too close to a tower. You can simply change the settings on your scanner to fix this.   Most police scanners have either a SMA female or BNC female connector type. You’ll want to make sure your antenna has the correct connector type or buy an adapter.  

• We offer a wide range of scanner antenna manufacturers, all of which come with warranties of one year to a lifetime.
• Typically, the bigger the antenna, the better the reception.
• The higher you put your antenna (pitch of roof or top of vehicle) the better the reception.
• Scanner signals work on line-of-sight, not satellites, so anything from a tree to a hill can inhibit signal.

Like all things police scanner related, you need to determine what you want to listen to and what bands those frequencies broadcast on. If you want to monitor everything (police, fire, EMS, local businesses, etc.) then you should choose ‘wide band’ antenna.

If you only want to monitor something specific such as trunked frequencies, then you should buy an antenna that is optimized for 800 MHz, or whatever specific bands you want to monitor. This is by far the most important consideration when buying an antenna for your police scanner.  

Pro tip: Wide band antennas account for 90% of all police scanner antenna sales.

• Wide Band
• 25-50 MHz - Low Band
• 137-144 MHz - US Military
• 148-174 MHz - VHF
• 156-158 MHz - Marine
• 160-161 MHz - Marine
• 450-470 MHz - UHF Business
• 800 MHz - Trunked

Police Scanner Antennas by Use

Now that you know what band(s) you need your antenna to monitor, we’ll show you how to purchase each of the three 'type' of scanner antenna.

Step 1 - Choose Home Scanner Antenna Bands

• Discone antennas are best for wideband monitoring 30-1300MHz and are the most common antenna type.
• Dipole antennas are for single or narrow band use. Yagi antennas are for single or narrow band use.

Learn more about scanner antenna types here.

Step 4 - Home Scanner Antenna Installation

Before installing your antenna you’ll want to connect it to your scanner to check reception. This will also help you choose an antenna location and make sure it works the way you want it to. Depending on your home, we suggest testing this in at least 3 areas:

• Inside (where you will actually listen from) - You may not need to put your antenna on the roof at all.
• Attic - May work well enough to avoid installing on roof.
• Roof - Bring scanner and antenna on roof and test a few areas (side of home, pitch of roof, etc.) to determine best location.

Read more about how to install an antenna here. There are three things required for every home scanner antenna to work:

• Connector
• Coax
• Mount

Some antennas include everything needed and others include none, so you’ll need to check the product page of the antenna.

Connector

Make sure the connector type of the antenna matches the connector on the police scanner (all scanners have either an SMA female or BNC female connector) or buy an adapter.

Coax

RG58 coax will work on any mobile installation with the option of 50' or 100'

Coax Length

• Mounting on trunk = 12 feet
• Mounting on roof = 6 feet

Mount

• Window Clings - mount included
• Magnet Mounts
• Mirror Mount
• Permanent Hole
• Trunk Lid

Vehicle Scanner Antenna Good to Knows

Wide band, magnet mount antennas are by far the most popular vehicle antenna type and account for 90% of all sales.

The metal on your vehicle blocks reception when your scanner is inside your vehicle so outside antennas works best.

Some States have restrictions about using a police scanner in a vehicle.

Step 1 - Choose Handheld Scanner Antenna Bands

What bands do you want to monitor on your police scanner?

• Wide Band
• 25-50 MHz - Low Band
• 137-144 MHz - US Military
• 148-174 MHz - VHF
• 156-158 MHz - Marine
• 160-161 MHz - Marine
• 450-470 MHz - UHF Business
• 800 MHz - Trunked

Step 2 - Handheld Scanner Antenna Type

There are 2 types of antennas you can choose from: 

• Rubber Duck - This is what comes with your scanner and are very durable.
• Telescoping - Telescoping antennas are made of a series of short metal tubes that can expand. While telescoping antennas usually get better reception than rubber duck antennas, they are not as durable as they can bend and break easily when extended.  

Handheld Police Scanner Antenna Good to Knows Some handheld antennas have an adjustable ‘elbow’ that allows the antenna to be vertical or horizontal. Make sure the connector type of the antenna matches the connector on the police scanner (all scanners have either an SMA female or BNC female connector) or buy an adapter.   Helpful Police Scanner Antenna Resources

• Fordyce- Learn more about home antennas and the differences between the different types.
• Radio Reference  - Talk to other scanner antenna users.
• Wikipedia - Great resource for general antenna theory and knowledge.
• ARRL - Several articles about how antennas work.
• Antenna Theory - A site dedicated to explaining antenna theory.
• Solid Signal - PDF of how to install an antenna on your roof.

Buy police scanner antennas here.