UHF manual transmitter

The radio-control guidance with a system.

Large range and high security for all applications. The system FS-HS is licensed in many European countries. Operation in these countries can be effected without application or charges. Without structures in between, an effective range of approx. 300 m can be achieved (without feedback). The application possibilities span the following functions:

• Manual control of traffic lights
• green light demand
• all red light demand
• all red light demand
• privileged passage for railways or buses

The small size and the ergonomic design make the UHF-Manual Transmitter especially handy. Several receivers can be activated at once, by pressing the key of the transmitter. Manual transmitters with more radio range including radio feedback are also available.

Manual transmitter HS-712 with radio feedback, range approx. 1000 m

The HS-712TX is a small, battery operated manual transmitter in the application and charge-free ISM band. Its transmission range amounts to 1000 m. Current-supply is effected through a 9V block-battery or rechargeable battery. The special situation here is that the manual transmitter uses no current when in stand-by mode. It offers a membrane keyboard with 12 keys. In standard issue, this involves the digits 0-9 as well as the keys C and E. Customer-specific keyboard membranes can be requested.

The HS-712TX offers the feedback feature, which means there is a signal in the manual transmitter, which announces whether the receiving party received the command by radio. The transmission of these commands is effected via FFSK procedure. With the safeguarding of the data-telegrams via a CRC, false transmissions can be avoided. The hamming distance of the applied telegram safeguarding amounts to 4. Furthermore, the data telegrams are secured with a customer-specific address, so that, even with the same model HS-712TX of another customer, your own system can not be influenced. For each customer address, 240 sub-addresses are possible, which can be assigned to both the sender and the receiver through a program function. Combinations are also possible, whereby various manual transmitters communicate with one receiver or one receiver communicates with various manual transmitters.
 
The HS-712RX can be used as a receiver-assembly. This receiver has 8 relays with exchange-contacts and can be optionally delivered with either a platinum or an IP-65 aluminium die-cast housing. The antennae can be directly attached to the housing on a BNC socket, or replaced with an HF-cable connection. The control cable in the HS-712RX is connected to a clamping strip and then guided through a steel conduit screw joint.