RF 703-2689.9MHZ 4 Band Combiner Quadplexer Quad Band with SMA Female Connector
Keenlion’s 703-2689.9MHZ 4 BandCombineris a rugged, low-loss solution that merges four discrete RF blocks into one antenna feed without mutual interference.703-2689.9MHZ Powe Combiner combines four input signals.RF Combiner enhanced rf signal integration and optimized signal quality.4 Way Combiner Quadplexer Combiner can optimize Signal Quality.
Main Indicators
Center Frequency(MHz) | 725.45 | 780.45 | 2534.95 | 2654.95 |
Frequency Range( MHz ) | 703-747.9 | 758-802.9 | 2500-2569.9 | 2620-2689.9 |
Insertion Loss(dB) | ≤2.0 | |||
Ripple in Band( dB ) | ≤1.5:1 | |||
Return loss( dB ) | ≥18 | |||
Rejection( dB ) | ≥80@758-802.9MHz ≥80@2500-2569.9MHz ≥80@2620-2689.9MHz | ≥80@703-747.9MHz ≥80@2500-2569.9MHz ≥80@2620-2689.9MHz | ≥80@703-747.9MHz ≥80@758-802.9MHz ≥80@2620-2689.9MHz | ≥80@703-747.9MHz ≥80@758-802.9MHz ≥80@2500-2569.9MHz |
Power Handling | ≥100W | |||
Port Connectors | SMA-Female | |||
Surface Finish | black paint |
Outline Drawing

Introduction
Keenlion’s 703-2689.9MHZ 4 Band Combiner is a rugged, low-loss solution that merges four discrete RF blocks into one antenna feed without mutual interference. Designed for macro-cell, DAS and broadcast head-ends, this 703-2689.9MHZ 4 Band Combiner sets a new benchmark for multi-service networks.
Technical Performance
• Frequency bands:703-747.9 MHz, 758-802.9MHz, 2500-2569.9MHz, 2620-2689.9MHz
• Insertion loss ≤ 2.0 dB per channel
• Ripple in Band ≤1.5:1 between ports
•Return Loss ≥18 across all bands
• Power handling 100W
Factory Advantages
20-year cavity-combiner experience — thousands of field-proven units
Full CNC in-house machining — seven-day lead time standard
Free samples dispatched within 48 hours for real-world validation
Tailor-made bracket, connector and band-split options at no MOQ
Competitive pricing without middle-men, backed by lifetime tech support
Applications
Deploy the 703-2689.9MHZ 4 BandCombinerin 5G/4G base-station sharing, public-safety DAS, or broadcast plus cellular co-location projects. Its compact 1U 19-inch rack housing saves rack space while simplifying RF plumbing.
Conclusion
For engineers seeking a robust, low-loss path to combine 700 MHz, 850 MHz, 1800 MHz and 2.6 GHz services, Keenlion’s 703-2689.9MHZ 4 Band Combiner delivers proven performance straight from our factory floor. Request datasheets and samples today.