ST-800 User Manual
The Call button “ST-800” is a transmitter that sends RF signals to a receiver for wireless communication. Users must first register the call button to the receiver. Pressing the call button sends signals, and the receiver displays the caller ID. For instance, in a restaurant, a customer can signal for service by pressing a pre-registered call button on their table.
Operational Description
Image of the Syscall ST-800 Transmitter, a square black device with a large 'Call' button in the center and 'Syscall ST-800' branding.
Diagram showing a finger pressing the 'Call' button on the ST-800 Transmitter.
Image of the Syscall Receiver (SR-A330), a digital display showing '505' and 'E-1 4-b', with 'Syscall' branding.
- Register a transmitter through the receiver.
- Press the button; the signal will be sent to the receiver.
Specification
| Model | ST-800(Transmitter) |
|---|---|
| Frequency | 433.420MHz |
| Frequency tolerance | +/- 2.0KHz |
| RF Power | 10mW |
| Modulation | FSK |
| Battery | CR2025 - Coin Battery 3V (1 Cell) |
| Current drain | Below 30mA |
FCC Information to User
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Caution: Modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
FCC Compliance Information: This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
CAUTION: Exposure to Radio Frequency Radiation: The antenna shall be mounted to minimize the potential for human contact during normal operation. The antenna should not be contacted during operation to avoid the possibility of exceeding the FCC radio frequency exposure limit.