- Remotely powered home connection amplifier for modern HFC networks
- Frequency range 47/85–1006 MHz
- Gain switchable via jumper: 40/34/30 dB
- Delivery condition: 34 dB
- Level control and equalizer with a 20 dB adjustment range
- Output level: 113/116 dBµV
- Latest GaAs MMIC technology
- Very high output level with favorable energy balance
- Highly efficient switching power supply
- Remotely powered via RF input
- Simplified level adjustment via rotary switch
- Fine step size of 1 dB
- Basic configuration via jumpers
- Precisely reproducible device settings
- Slot for additional functions in the forward path
- Return path active, passive or switchable
- Diplexer can be bypassed for Band I operation without return path
- Test sockets via F-connectors
- Bidirectional test jack at the input can be switched on
- Test socket with directional coupler at the output
- Internal LED function indicator
- Surge arresters at the input and output
- Cast housing with F-connectors
- For use in weather-protected locations
- Complies with EN 60728-11, EN 50083-2 and EN 60065
- Classification according to KDG 1 TS 140: Type D(4.4)
- Vodafone/KDG release
| Type: | VOS 138/RA |
| Order no.: | 20910028 |
| Vodafone/KDG approval: | ja |
| Forward path: | ------------------ |
| frequency range 1): | 47/85-1006 MHz |
| Reinforcement: | 40/34/30 dB |
| Adjustment range of damping control: | 0-20 dB |
| Equalizer adjustment range: | 0-20 dB |
| Interstage attenuation setting range: | 0-20 dB |
| Interstage equalization adjustment range: | 0/3/6 dB, 0/6 dB |
| Maximum operating level at 862 MHz 2) with 6 dB interstage preemphasis (60 dB CTB/CSO): | 113/116 dBµV |
| Noise figure (interstage attenuation 0/6/10 dB): | Typ. 6/7/7 dB |
| Way back: | ------------------ |
| Frequency range: | 5-65MHz |
| Active/passive amplification: | 30 dB/-2 dB |
| Input attenuation adjustment range: | 0 / 10 dB |
| Input equalization setting range: | 0 / 3 dB |
| Interstage attenuation adjustment range: | 0-20 dB |
| Interstage equalization adjustment range: | 0/3/6 dB |
| Max. output level (60 dB IMA2/IMA3) | 107 / 116 dB |
| Control capability KDG 1 TS 140 (full system load): | 120 dBµV |
| Noise figure: | Typical 5 dB |
| Input level density (CINR at 50 dB, EN 60728-3; 4.7): | -10 dBµV/Hz |
| Dynamic range (EN 60728-3; 4.7): | 17 dB |
| Test sockets (F-connector) | ------------------ |
| Amplifier input (5-1006 MHz, bidirectional): | -20 dB |
| Amplifier output (5-1006 MHz, with directional coupler): | -20 dB |
| Switching power supply: | ------------------ |
| Input nominal voltage: | 32-65∼ (50/60 Hz) |
| Typical input rated power 3) | |
| Return path passive or deactivated: | 14 W |
| Return route active: | 15 W |
| General notice: | ------------------ |
| Input/output impedance: | 75 Ω |
| RF connections: | F-Connector |
| Protection class (according to EN 60529) 4): | IP 54 |
| Temperature range: | -20 to +55 °C |
| Dimensions: | 218 x 150 x 80 mm |
| Packaging unit/weight: | 1 (10)/1,25 pcs/kg |
| Classification according to KDG 1 TS 140: | Type D (4.4) |
1) Frequency range from 47 MHz without return path use
2) According to EN 60728-3; CENELEC grid with 42 beams
3) VOS 138/RA 2.0 and VOS 139/RA 2.0: Input rated power as a function of the supply voltage when operating via the cable resistance
4) Outdoor use only in weatherproof cabinets