Sunday, January 02, 2005
Radio Controlled Vehicles
Radio controlled vehicles are controlled with a transmitter that is not connected to the vehicle by wires. The transmitter communicates with the vehicle by using a radio frequency. In the US, the FCC determines who can use specific radio frequencies.
In the US, the frequencies designated for use by radio controlled toys is 27 MHZ and 49 MHZ. If you want more than one RC vehicle to operate in the same area at the same time, they must operate on different frequencies. If they are operating on the same frequency, the vehicle will not know which transmitter is trying to control it, and will respond to both transmitters.
Many of the less expensive radio controlled vehicles come with one set frequency and cannot be changed by the user. Some of the more expensive vehicles come with a removeable frequency control crystal that allow the user to change to one of 6 different bands in the 27 MHZ range. This allows up to 6 different vehicles to operate in the same area. Such as when you wish to race.
The range of a vehicle is the area in which the vehicle can receive signals from the transmitter. This range varies by vehicle, which can range anywhere from 30 ft. to over 400 ft. The range can be affected by weak batteries or other items using radio frequencies. Other RC vehicles, CB Radios, cordless phones, high voltage wires can all affect the range.
It is best to hold the transmitter so the antenna is straight up, not pointed directly at the vehicle. Also try to find a place that is away from any interference.
In the US, the frequencies designated for use by radio controlled toys is 27 MHZ and 49 MHZ. If you want more than one RC vehicle to operate in the same area at the same time, they must operate on different frequencies. If they are operating on the same frequency, the vehicle will not know which transmitter is trying to control it, and will respond to both transmitters.
Many of the less expensive radio controlled vehicles come with one set frequency and cannot be changed by the user. Some of the more expensive vehicles come with a removeable frequency control crystal that allow the user to change to one of 6 different bands in the 27 MHZ range. This allows up to 6 different vehicles to operate in the same area. Such as when you wish to race.
The range of a vehicle is the area in which the vehicle can receive signals from the transmitter. This range varies by vehicle, which can range anywhere from 30 ft. to over 400 ft. The range can be affected by weak batteries or other items using radio frequencies. Other RC vehicles, CB Radios, cordless phones, high voltage wires can all affect the range.
It is best to hold the transmitter so the antenna is straight up, not pointed directly at the vehicle. Also try to find a place that is away from any interference.
# posted by chocoholic @ 3:10 PM 
