- Frequency Range: 1452 MHz – 1492 MHz
- Available Output Power: 1 Watt, 4 Watts and 10 Watts RMS
Description and Application
The innovative DAB L-Band Gap Filler (On Channel Repeater) is the latest in the new product range being released by UBS to serve the DAB L-Band transmission market. This outdoor unit is completely self contained and only requires connections to receive and transmit antennas as well as the main power supply.
The primary application of the DAB L-Band Gap Filler is the propagation of a seamless DAB COFDM signal, where geographical and physical impediments have affected network coverage, creating poor or non-existent signal reception (“gaps”). The Gap Filler is engineered to eliminate network coverage deficiencies by delivering the expected quality of signal to DAB receivers. Whether the unit is employed to increase coverage in an urban environment or provide coverage in a geographically challenged area, its performance is truly stunning.
DAB L-Band signals received by this wide bandwidth unit are filtered and amplified to an output power level of 1 Watt, 4 Watts or 10 Watts RMS with minimal distortion. This is achieved by using an LDMOS transistor operating in Class A/B mode. The output power is monitored closely and is maintained at the set level, as long as the received signal is within the specified range.
The DAB L-Band Gap Filler comes pre-configured and should require no further adjustment for most installations. Via the RS232 serial port, the user can monitor the output power, internal temperature, received and transmitted signal levels and gain control values through a GUI application installed on a PC or laptop computer.
At it is designed for outdoor, unattended operation, the unit is easily installed in a variety of locations (e.g. roof tops, utility poles, etc.), keeping the cost of ownership to an absolute minimum. The Gap Filler enclosure is constructed out of high quality aluminum casing, providing reliable operation within a temperature range of -20°C to +55°C and relative humidity up to 100%.
The DAB L-Band Gap Filler covers the full range of DAB channels from LA to LW and from L1 to L23. The user must specify the required frequency range or the DAB channel/group of channels when ordering the Gap Fillers. As our world becomes more mobile, additional services come on line and greater coverage is required. This product will allow you to serve your customers in the most cost effective manner, while keeping your capital costs to a minimum, therefore offering the best possible opportunity for strong revenue growth.
Optional Remote Control
The DAB L-Band Gap Filler includes an optional SNMP remote control feature, supported by an additional integrated processor and a GPRS/GSM cellular modem. This version includes battery back-up for the processor and modem.