KATHREIN VOS 32/RA-1G HF Distribution Amplifier with 32 dB Gain and 10 dB Tap Loss

The KATHREIN VOS 32/RA-1G stands apart from typical distribution amplifiers by combining a high 32 dB forward gain with a fixed 10 dB tap output, enabling both main line continuation and local signal extraction from a single compact die-cast housing. Its continuously adjustable gain and slope controls allow precise level matching in CATV networks, while the passive return path from 5 to 65 MHz ensures compatibility with modern two-way services.

Highlights

• Forward path 47–1000 MHz, return path 5–65 MHz (passive)
• 32 dB gain, adjustable 0–18 dB; slope 0–12 dB
• Main and tap outputs with 10 dB tap loss
• F-type connectors, 75 Ohm impedance
• 230 V AC power supply, 6.5 W consumption

In daily use

Installed in a central distribution point, the VOS 32/RA-1G compensates for cable losses while feeding both a downstream trunk and a local subscriber tap. The -20 dB test points on input and output simplify commissioning and troubleshooting without interrupting service. Its die-cast aluminum housing provides shielding effectiveness greater than 100 dB, protecting signals from external interference.

Full specifications

• Frequency range (forward): 47–1000 MHz
• Frequency range (return): 5–65 MHz (passive)
• Gain (forward): 32 dB, adjustable 0–18 dB
• Slope adjustment: 0–12 dB
• Max output level (CENELEC 35 ch.): 108 dBµV
• Tap loss: 10 dB
• Noise figure: < 7 dB
• Return loss (input/output): > 14 dB
• Impedance: 75 Ohm
• Connectors: F-type
• Power supply: 230 V AC / 50 Hz
• Power consumption: 6.5 W
• Shielding effectiveness: > 100 dB
• Test points: -20 dB (input and output)
• Housing: die-cast aluminum
• Operating temperature: -20 to +55 °C
• Outputs: 1 main, 1 tap

Final note

With its robust construction and precise adjustment capabilities, the VOS 32/RA-1G is a reliable choice for professional CATV distribution where both trunk and subscriber signals are required.