What is line of sight in RF?

What is line of sight in RF?

Line-of-sight is defined as the straight line distance, clear of any objects, between the gateway antenna and each monitor it communicates with.

How do you calculate line of sight?

Checking Line of Sight#

1. Use the ruler tool to measure the distance between the two points.
2. The ruler tool will show you the distance and the azimuth between the two points.
3. Click ‘Save’ on the ruler tool.
4. Go to the ‘Altitude’ tab on the line properties.
5. Change ‘Clamped to Ground’ to ‘Relative to Ground’

What is radio path study?

Radio Path studies are completed first to determine necessary antenna heights and the proper radio frequencies to utilize. This ensures that their are no surprises or bad communication links once the system is complete.

Is UHF line of sight?

UHF radio waves propagate mainly by line of sight; they are blocked by hills and large buildings although the transmission through building walls is strong enough for indoor reception. The IEEE defines the UHF radar band as frequencies between 300 MHz and 1 GHz.

Do UHF radios need line of sight?

All UHF radios transmit best on a line of sight basis, which means that it’s important to position an antenna in such a way as to provide maximum coverage. For this reason, many people prefer to use units that are mounted to the dash and that have tall antennae mounted to the outside of the vehicle.

What is the maximum line of sight?

The furthest photographed sightline in the world is 443 km, from Pic de Finestrelles in the Spanish Pyrenees to Pic Gaspard in the French Alps, almost 100x further than what can be seen driving along the prairies and staring at the horizon.

How far is radio line of sight?

So according to our rule-of-thumb, 2 people around 6 feet tall using a 5 watt handheld two-way radio, used on flat ground with no obstacles, will have a maximum range of approximately 6 miles.

Is FM radio line-of-sight?

Line of sight (LoS) is a type of propagation that can transmit and receive data only where transmit and receive stations are in view of each other without any sort of an obstacle between them. FM radio, microwave and satellite transmission are examples of line-of-sight communication.

Are VHF radios line-of-sight?

VHF radio waves propagate mainly by line-of-sight, so they are blocked by hills and mountains, although due to refraction they can travel somewhat beyond the visual horizon out to about 160 km (100 miles).

What do you need to know about radio line of sight?

Understanding Radio Line of Sight Radio transmission requires a clear path between antennas known as radio line of sight. It is necessary to understand the requirements for radio line of sight when designing a network operating in the 2.4Ghz or 5.2/5.8Ghz ISM band. Line of sight is the direct free-space path that exists between two points.

How can I Find my RF line of sight?

The RF Line-of-Sight tool allows users to easily drag-and-drop locations and obtain point-to-point line-of-sight information anywhere using Google Maps. This free online tool takes antenna height and the topographical formations of the earth to calculate the line-of-sight of a radio path.

How does the line of sight work for SCADA?

RF Line-of-Sight provides radio path information for mapping long distance SCADA radio communications by using antenna height and topography.

How does optical line of sight affect radio propagation?

This is referred to as “optical line of sight coverage”. The optical line of sight method does not take into account reflections, Fresnel Zones or the slight bending of radio waves along the surface of the earth. Radio path loss between 2 sights that are within line of sight uses “free space loss” only. No other loss parameters are considered.