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- The multiplexer allows the transmission of several radio frequencies on the same broadband transmitting antennas.
- Modular multi-frequency multiplex possible The number depends on the respective frequency differences and the powers involved.
- The use of a multiplexer saves several antenna assemblies for each transmitter on the site.
- It avoids any intermodulation problem and allows high spectral purity outside of the two multiplexed frequencies.
- Two-cavity model: allows multiplexing of frequencies spaced more than 2 MHz apart.
- Three-cavity model: allows multiplexing of frequencies spaced more than 1.2 Mhz.
- Special model with dummy loads: allows multiplexing of frequencies spaced up to 800 KHz.
- Also available for TV and DAB +
MECHANICAL REALIZATION
- Copper and brass construction
- Cylindrical cavity with high thermal stability
- Thermal stabilization thanks to INVAR
- Silver treated on the inside and painted on the outside
- Placement in any position
- Natural convection cooling
- Precise adjustment carried out in our labs via spectrum analyzer
TECHNICAL SPECIFICATIONS
| IN / OUT impedance | 50 Ω |
| Frequency range | de 87,5 à 108 MHz |
| Bandwidth | Adjustable in our labs |
| Phase | Adjustable in our labs |
| Insertion loss | < 0,65 dB |
| Cross talk | > 30 dB |
| Ambient temperature | - 30 / 50° |
| Bandwidth | ||
| Spatial frequencies |
2 MHz | 2 cavities |
| 1,2 MHz | 3 cavities | |
| 800 KHz | Special mounting with load | |
| Models available | |||
| IN | OUT | Output power | Input power |
| N | N | 600 W | 2x 300 W |
| N | 7/16 | 1.6 kW | 2 x 800 W |
| 7/17 | 7/8 | 2.5 kW | 2 x 1.2kW |
| 7/8 | 7/8 | 5 KW | 2 x 2.5 kW |
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Other powers and connections on request: 5 kW - 10 kW - 20 kW |
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