Cavity Coupler Rangeful CC20 20 dB 698–2700 MHz N-Female

The Rangeful CC20 20 dB cavity coupler is an RF device for unequal distribution of signals with an N-female connector. It provides a fixed 20 dB coupling (the side output is 100 times weaker than the main line) across the 698–2700 MHz band and supports common GSM, 3G and 4G mobile standards. The coupler is intended for applications where predictable attenuation and signal isolation are required, such as lab measurements, field testing and installation tasks.

Advantages

The CC20 delivers stable, repeatable 20 dB attenuation over a wide frequency range, ensuring consistent sampling or isolation between transmitter and measurement equipment. Its N-female connector provides reliable mechanical and RF connection. The fixed coupling simplifies system design when a known signal reduction is needed for secondary paths or measurement ports.

Suitable for

• Connecting an additional indoor antenna with lower power to serve a smaller room
• Compensating for unequal cable lengths to equalize signal levels between two antennas
• Lab and field RF testing where a predictable 20 dB sample or isolation is required
• Installations with branched topologies requiring controlled splitting and monitoring

Key specifications

• Model: Rangeful CC20
• Coupling: 20 dB
• Frequency range: 698–2700 MHz
• Connector: N-female
• Supported standards: GSM, 3G, 4G (within specified band)
• MPN: CC20
• EAN: 4751040000364

How to use

Install the CC20 inline between the main feed and the branch or measurement device using compatible N-type cables. Ensure connectors are tightened to maintain good RF contact. The main line carries the full signal while the side output provides a signal attenuated by 20 dB; plan antenna placement and cable runs accordingly to achieve the desired coverage or measurement level. Observe proper grounding and follow standard RF installation practices to avoid signal degradation.

Usage recommendations

Use the CC20 when a known fixed attenuation is needed to reduce power to a secondary antenna, compensate for cable loss differences, or obtain a stable sample for testing. Verify frequency coverage of your antennas and equipment falls within 698–2700 MHz and use low-loss, correctly terminated N-type cables for best results.