Many radio remote control of different manufacturers are equipped with an active redundant system. This means that two circuits work in parallel. So the complete control and evaluation Electronics is double and a circle is able to monitor the other. One fails, the second is still active and can shut down the entire system. Many manufacturers have designed also your radio remote control, that not only turn off if there is a failure, but they automatically control a safe state. This means that all commands with a description are deposited, which must run the Funkfernsteuerungs system in the event of a failure of whatever kind.
This prevents reliable, all of a sudden that a crane to unfurl can. The manufacturer offer with more or less different radio remote control many functions. It is therefore very important before buying a radio control not only to be very concerned, what different control commands she can run, but also is built as their internal security equipment. Some remote control have also features that are very useful, depending on where and how they should be used. So, the range of such controls is quite up to 300 meters. Where however a range limit for safety reasons is required, so also is available. Often they are used infrared light to. It detects whether the data range of the like operator stop or not: he abandoned him, the entire crane system stops automatically.
In heavily schmutzendem environment this type of transfer does not work however. Therefore, some manufacturers of microwave technology use in this case. You have a similar characteristic such as infra-red technology, but completely insensitive to Pollution. Their range is limited to about 15 feet. For companies that need to move large parts, the function of the tandem ride is important: this procedure a component of two cranes. Radio remote control controls both at the same time.