Posicionamiento de la antena del satélite

The two primary considerations when pointing a satellite dish are the angle of elevation and azimuth. The angle of elevation is the angle where your satellite dish is pointed into the sky at a (typically) 90° angle to the signal from the satellite. 0° angle of elevation is considered parallel with the earth and 90° angle of elevation is considered pointing straight up into the sky. This means that your angle of elevation will be somewhere between those two. Note that there are also “offset” antennas where the goal is not to be at a 90° angle. This is most easily accomplished with a tilt sensor or inclinometer, which is where our products come into play.

El azimut es esencialmente un rumbo de brújula; la antena parabólica debe apuntar en la dirección del satélite. Por ejemplo, si un satélite está sobre el ecuador, y yo estoy en el hemisferio norte, la antena parabólica deberá apuntar en dirección sur. Por el contrario, si estoy en el hemisferio sur, la antena parabólica tendrá que apuntar en dirección norte.

The goal of both of these positions for the satellite is to optimize the signal strength so that you have the best signal and can use the satellite service uninterrupted. If you have the GPS coordinates of your satellite dish you can easily calculate the azimuth and angle of elevation needed for an optimal signal. Higher-end satellites and mobile satellites often have an automatic angle of elevation and azimuth calculations by including a tilt sensor or inclinometer and a digital compass and include motors to automatically position the satellite dish.

The most common Fredericks tilt sensor for the angle of elevation calculations is the 0717-4318-99 tilt sensor which is our lowest cost tilt measurement option. This sensor has a ±60° range giving it a total operating range of 120°, which is more than enough for almost all satellite applications. It also has an accuracy of ±0.1°, which is again more than adequate for most satellite applications. If higher accuracy is needed, we also offer the 0717-4313-99 which has the same operating range with improved accuracy of ±0.05°.

Note que los sensores de inclinación de Fredericks requieren electrónicos de acondicionamiento de señales para dar una salida de posición angular. Ofrecemos una variedad de tarjetas de acondicionamiento de señales para nuestros sensores, y soluciones preempaquetadas y selladas para el medio ambiente que tienen salidas fáciles de usar como comunicaciones analógicas de 0 a 5 V DC, RS-232, RS-485, o SPI.

Productos

circuito de sensor de inclinación electrolítico sensor de inclinación electrónico, 0717-4318-99, 0717-4319-99, The Fredericks Company, +1 215 947 2500

Rango de operación de ±60°, precisión de ±0.1°.

Dual-Axis Wide-Range Electrolytic Tilt Sensor

circuito de sensor de inclinación electrolítico sensor de inclinación electrónico, 0717-4313-99, 0717-4315-99, The Fredericks Company, +1 215 947 2500

Rango de operación de ±60°, precisión de ±0,05°.

Dual-Axis Wide-Range Electrolytic Tilt Sensor