Позиционирование спутниковой антенны

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.

Азимут - это, по сути, компасный курс; спутниковая антенна должна быть направлена в направлении спутника. Например, если спутник находится над экватором, а я в северном полушарии, спутниковая антенна должна быть направлена в южном направлении. И наоборот, если я нахожусь в южном полушарии, спутниковая антенна должна быть направлена в северном направлении.

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°.

Обратите внимание, что датчикам наклона Fredericks необходима электроника формирования сигнала для выдачи выходного сигнала углового положения. Мы предлагаем различные платы формирования сигнала для наших датчиков, а также готовые и экологически безопасные решения, которые имеют простые в использовании выходы, такие как аналоговые 0-5 В постоянного тока, RS-232, RS-485 или SPI-связь.

Продукция

электролитическая схема датчика наклона, 0717-4318-99, 0717-4319-99, фирма Фредерикс, +1 215 947 2500

Рабочий диапазон ±60°, точность ±0,1°.

Dual-Axis Wide-Range Electrolytic Tilt Sensor

электролитическая схема датчика наклона, 0717-4313-99, 0717-4315-99, фирма Фредерикс, +1 215 947 2500

Рабочий диапазон ±60°, точность ±0,05°.

Dual-Axis Wide-Range Electrolytic Tilt Sensor