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Dual Band Outdoor Yagi Antenna,2Meter 70CM VHF UHF 9.5/11.5dBi Directional Yagi 8 Elements 3 Sections for Amateur 2 Way Radio,Repeater System,433mhz Device,Police Scanner |
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TWAYRDIO Yagi Antenna UHF 400-470Mhz,High Gain Outdoor GMRS Vertical Base Antenna,7dBi Receiver Directional Yagi for Ham Radio,Repeater System,433mhz Device,Fm Scanner |
Contents
- What antenna Do police use?
- Does a scanner need an antenna?
- How far will a scanner pick up?
- What is the range of a handheld police scanner?
- Why do police cars have 4 antennas?
- What is magnetic antenna?
- How does a rubber duck antenna work?
- How does a Discone antenna work?
- What is scanner trunking?
- Can you scan digital frequencies?
- What is the range of a handheld police scanner?
- How does a Discone antenna work?
- What is NMO antenna?
What antenna Do police use?
The E/M Wave NMO whip antenna, low profile antenna, and NMO dual band antenna are used with a mobile police scanner, two-way radio antenna, and a Yagi antenna.
Does a scanner need an antenna?
Police scanners come with a stock rubber duck antenna that can receive up to 30 miles of range, which can vary greatly depending on where you live. Most users don’t need an antenna and we don’t want to sell them one. Alright, okay.
How far will a scanner pick up?
It’s not set in stone that you can hear a 10 to 20 mile range from a handheld or desktop scanning device.
What is the range of a handheld police scanner?
You can listen to radio transmissions up to 50 miles away from the police station. Truck drivers often use CB radios that only detect transmission from other CB radios that are less than 20 miles away.
Why do police cars have 4 antennas?
The police have many antennas to help with radio communication through their radio, computer system, connection to a police station or another agency, and additional antennas for other frequencies.
What is magnetic antenna?
A magnetic antenna base is an antenna mount that uses magnetism to attach itself to a metal surface. The attachment is non-permanent and can be used for a variety of applications.
How does a rubber duck antenna work?
The rubber ducky is an antenna that has an inductor built into it rather than in the base. The antenna is made from a narrow helix of wire and has an inductor.
How does a Discone antenna work?
The vertical radiation pattern of the discs is very narrow. The discone antenna is more sensitive to signals from the horizon than a nearby source. A dipole antenna has the same gain as a discone antenna. They can have no gain at all.
What is scanner trunking?
A trunked system is a computer controlled two way radio system that allows users to share frequencies. The radio doesn’t choose a specific Frequency for a transmission, it chooses a programmed bank.
Can you scan digital frequencies?
The only handheld receiver that can receive all of the digital radio frequencies is the Whistler TRX-1. If you want to use a consumer radio scanner, the TRX-1 and TRX-2 are the only options.
What is the range of a handheld police scanner?
You can listen to radio transmissions up to 50 miles away by tuning in to the police scanner. Truck drivers often use CB radios that only detect transmission from other CB radios at a shorter distance, while also allowing them to talk to other users.
How does a Discone antenna work?
The vertical radiation pattern of the discs is very narrow. The discone antenna is more sensitive to signals from the horizon than a nearby source. A dipole antenna has the same gain as a discone antenna. They can have no gain at all.
What is NMO antenna?
A few years ago, a standard configuration for land mobile radio antennas was developed by the company, called the NewMotorola Mount. Many different manufacturers use the same standard for their antennas.