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The NGT-CX-4-300 4x300W FM Full Bridge Combiner efficiently merges four 300W FM signals (87–108MHz) into a unified output with minimal loss (≤0.65dB). Its robust full-bridge structure supports broadband integration (≤500W) and future scalability via reserved ports. Engineered for broadcast systems, it features high isolation (≥30dB), low VSWR (≤1.1), and thermal resilience (≤12°C temperature rise at full load). Ideal for multi-transmitter setups, it ensures stable performance in extreme conditions while adhering to stringent industry standards.
onstructed with premium materials including purple copper, silver-plated brass, and high-strength aluminum alloy for durability and conductivity.
Full bridge architecture with a reserved broadband port, enabling seamless multi-frequency expansion.
Integrated filtering ensures low insertion loss (≤0.6dB) and high out-of-band selectivity for signal clarity.
Exceptional isolation (≥30dB) between narrowband and broadband ports, minimizing interference.
Compact, temperature-compensated design maintains stability under varying thermal conditions (≤1.5kHz/℃).
Operates reliably in harsh environments (-10°C to +55°C, ≤90% humidity, 86–106kPa pressure).
| Multiplexer structure | Full bridge structure, the 4-way combiner includes 4 bridge units and reserves a broadband port. |
| Power level | 300W |
| Frequency range | 87 - 108MHz |
| Working frequency | Determine based on actual user needs. |
| Narrowbandmaximuminput power | ≥ 350W |
| Narrowband standing wave ratio | ≤ 1.1 |
| Narrowband bandwidth | 600kHz |
| Narrowband insertion loss and out of band selectivity | Single 4-way combiner unit. |
| Narrowband insertion loss and out of band selectivity | f0≤ 0.6dB |
| f0±300kHz ≤ 0.65dB | |
| For each additional level of the multiplexer, itsinsertion loss increases by no more than 0.09dB. | |
| Broadband maximum input power | ≤500W |
| Broadband standing wave ratio | ≤ 1.1 |
| Isolation from narrowband to broadband | ≥ 30dB(Frequency intervalmore than 1MHz) |
| Isolation from broadband to narrowband | ≥ 30dB(Frequency intervalmore than 1MHz) |
| Isolation from narrowband to narrowband | ≥ 30dB(Frequency intervalmore than 1MHz) |
| Input port type(Up) | 7/16"(L29) female |
| Output porttype(Up) | 7/16" EIA |
| Temperature coefficient | ≤1.5kHz/C |
| Full power temperature rise | ≤12℃ |
| Workenvironment | Temperature:-10℃-+55℃,Relative humidity:≤90%,Atmospheric pressure:86kPa-106kPa. |
