Description
OverviewÂ
GAOTek optical fibre walkie talkie is a high performance and reliable optical subsystem, convert analogue RF signals to fibre optic signals on both master and slave units. The RFoF modules are suitable for Telecom systems, Tetra systems, Base stations can be connected through fibre to remote sector antennas, the fibre optic link able to support the distance of 6.214 mi (10 km) with very low noise and low insertion loss, and support to monitor the optic signal status.
Features
- 700 MHz to 2200 MHz bandwidth support
- Uncooled 1310 nm or 1550 nm DFB Laser diode
- Single-fibre bi-directional operation
- WDM module for excellent isolation
- High dynamic range, low noise
- Built-in FSK modem with monitoring and alarm
- Manual Gain Adjustment for signal level (MGA)
Technical Specifications
Frequency range | 10 MHz to 2800 MHz |
Flatness at any 30 MHz | ± 0.2 dB (max.) |
Input or output impedance | 50 ohms |
Input or output VSWR | 1.5:1 (max.) |
Maximum input without damage | +10 dBm |
Gain control adjusting | -15 dBm to +10 dBm |
RF isolation | 60 dB (min.) |
Link gain | 0 ±10 dB |
Third order modulation output | -60 dBc (max.) |
Noise figure | -135 dBm/Hz (max.) |
RF connector | SMA to female |
Optical wavelength | 1310 nm or 1550 nm ±10 nm |
Optical output power | 3 dBm (min.) |
Maximum input power | +6 dBm |
Average Rx sensitivity | -20 dBm (min.) |
Optical isolation | 35 dB (min.) |
Connector type | FC or APC |
FSK interface | RS-232 or DB9 |
RS232 transmission speed | 9.6 kbit/s to 19.2 kbit/s |
Operating current | + 12 V DC at 300 mA |
Operating temperature range | 14 °F to 158 °F (-10 °C to +70 °C) |
Storage temperature range | -40 °F to 185 °F (-40 °C to +85 °C) |
Dimensions | 5 in x 3.012 in x 1.102 in (127 mm x 76.5 mm x 28 mm) |