When specifying a feeder connector, three parameters determine compatibility:
Cable diameter — Match the connector to the exact outer conductor size (1/2", 7/8", 1-1/4", or 1-5/8"). A mismatched connector will not clamp correctly and will degrade VSWR.
Interface type — Choose 4.3-10 for modern DAS and RRU connections; 7/16 DIN for high-power outdoor base station applications; N-type for indoor DAS and lower-power indoor runs.
Orientation — Right-angle variants are available for installations where a straight connector would exceed the cable's minimum bend radius or conflict with enclosure geometry.
If your project requires a specific cable-connector combination not listed above, contact SYMAIR's engineering team at sales@symair.com.
1. Efficiency
Field installable RF connectors are typically designed to be easy and quick to install, without the need for complex tools or equipment, which can significantly reduce installation time. For example, SYMAIR's field installable RF connector can be installed on cables in just a few minutes, saving a lot of time compared to traditional installation methods.
2. Flexibility
Field installable RF connectors typically have flexible cable lengths that can be adjusted according to actual needs without the need for customization, which increases installation flexibility.
3. Cost savings
Due to the fact that field installable RF connectors can be installed on demand, enterprises can reduce the inventory of cable assemblies and lower inventory costs.
Field installable RF connectors can support a wide range of frequency bands, which mainly depends on the type, design, and performance parameters of the connector. Different types of connectors have different operating frequency bands. Here are some common types of field installable RF connectors and their possible supported frequency ranges:
N-type connector:
The original design was intended for military systems below 4GHz, but with improvements, its performance can be pushed up to 12GHz and even higher up to 18GHz. This type of connector is typically used in wireless devices that require higher power and lower frequency.
SMA connector:
Suitable for lower to medium frequency ranges, typically up to 18GHz. Due to its compact size and excellent performance, SMA connectors are widely used in wireless communication and testing instruments.
4.3-10 Connector:
As a new type of RF coaxial connector, its design aims to replace traditional DIN 7/16 connectors. The supported frequency range is wide, usually up to 0-12GHz, depending on the design and manufacturing standards of the connector. This connector has the advantages of low PIM performance, high reliability, and compact size, making it particularly suitable for modern wireless communication base stations and antenna systems.
SYMAIR feeder connectors meet these requirements through precision-machined inner conductors, robust clamping mechanisms that grip the corrugated outer conductor securely, and sealing rings that prevent moisture ingress at the interface.
Key performance characteristics:
50 Ω impedance, matched to standard RF coaxial feeder cables
Low VSWR across DC to 3 GHz operating range
High-quality brass body with silver-plated and ternary alloy outer surface
Compatible with indoor and outdoor applications, including tower-mount and tunnel environments
For a deeper understanding of how feeder cables and their connectors work together in an RF system, see our technical guide: Feeder Cables: Uses in RF Systems.