HOW IT WORKS
The Elektromag-Theimeg Radio Remote Control is a very simple yet effective device. Every "action" on the Transmitter (via the joysticks or the switches) is converted into series of coded impulses. Each "action" has a unique code.
These signals are transmitted via a digitised frequency Modulated signal to the Receiver.
All signals are transmitted together with the specific address of the Transmitter.
The Receiver decoded this signal, emulates only the commands addressed to it and "extracts" the required "action-information".
The Receiver then converts the serial information to a parallel output and activates the respective Relays.
The Elektromag-Theimeg Radio Remote Control is capable of using the same frequency for multiple applications without any fear of interference.
The Elektromag-Theimeg Radio Remote Control is very versatile. It can be used in any configuration from simple cranes to other complex applications that can require the user to control up to 4 drives with up to 6 speeds for each direction in addition
to push buttons for horns, lights and other special functions. It even has a "HOT" button for the emergency switch.
The Elektromag-Theimeg Radio Remote Control has multiple levels of security so that there is NO chance of malfunction. Each transmission has it's pulse spacing, pulse length, number of pulses and length of synchronous pulses checked.
The Elektromag-Theimeg Radio Remote Control has TWO independent address-comparators so all errors are eliminated. An error in one comparator will NOT affect the other.
The receiver is equipped with a large bank of LED's that indicate the exact status of every operation and act as an integrated function indication system when servicing is required.
The coded transmission impulses have a high degree of redundancy. The minimum hamming distance for the commands is set as d=6 (cyclic), and the addresses have two independent codings. A minimum hamming distance d=6 (cyclic) AND d=2 (additionally by a special code).
The Receiver and Transmitter each consist of only one PCB. This makes the Elektromag-Theimeg Radio Remote Control very easy to service. It also eliminates problems that could occur due to interconnecting wires, connectors etc.
A few of the devices the Elektromag-Theimeg Radio Remote Control can be used to control are listed below.
SPECIAL FEATURES
The brains of the Elektromag-Theimeg Radio Remote Control is a highly reliable Gate-Array chip. Each system has a matched set of these special chips so NO malfunction can occur. To further reduce any chances of malfunction or crosstalk each Radio Remote Control system has a unique 16 bit address.
TYPICAL APPLICATIONS
TECHNICAL DATA
GENERAL
Note : The design, dimensions and specifications are subject to alterations without prior notice due to constant development for better performance.
Frequency Range 148-173 / 400-470 MHZ
Transmission Speed up to 7200 baud
Access Time approx. 50 ms (typical)
Channel Separation 20 kHz.
Frequency Tolerance +/- 800Hz (-15 to +15 deg. C)
Operating Temperature -20 to +60 deg. C.
TRANSMITTER
Output power 50 mW (up to 500 mW)
Modulation Frequency Modulation
Frequency Deviation +/- 2 kHz (limit)
Bandwidth < 7 khz for 6 dB damp. Antenna P. C. Board or Rod type 50 ohm, 1/4 wave
Power Supply 12 V, 0.6 AHR
Weight Max. 2.1 kg.
Protection Class IP 54.
RECEIVER
Sensitivity < 1uV (typically 0.5 uV) Adjacent Channel Damping > 70 dB
Spurious Radiation < 2 x 10^-6 W Intermodulation damping > 70 dB
Signal to Image Ratio > 85 dB
Spurious Emission Suppression > 70 dB
Antenna Rod type, 1/4 wave
Power supply Mains 220 V AC
Protection Class IP 55
Outputs Potential free contacts