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Product
FTDPDC05AA01
• COMBINER 3 CHANNELS • DOUBLE BALANCED • FM BAND: 87.5-108 MHz • BANDII
- Combiner 3 Channels
- Double Balanced Bridge
- FM Band: 87.5108 MHz
- Band II
The Double Balanced Bridge System consists of two Band-Pass Filters, two -3dB Couplers and an Absorber. One of the inputs has a narrow-band characteristic (complying with the band-pass functions of the band-pass filters), while the other input has a broadband characteristic within the operating frequency range of -3dB couplers. Both inputs exhibit a frequency independent load impedance to the RF source.
| TYPICAL SPECIFICATIONS | |
| Model | FTDPDC05AA01 – Double Bridge Type |
| Impedance | 50 Ohm |
| Frequency Range | 87.5-108 MHz |
| VSWR ±150 KHz | 1.1:1 max |
| Insertion Loss | at 0 f 0.35-0.55 dB Max Narrow Band Input 0.1 dB Max Broad Band Input |
| Return Loss ±150Khz | ≤ -26 dB |
| Isolation ± 1.2 MHz | N/B à B/B ³ 30 dB B/B à N/B ³ 40 dB |
| Number of Inputs | 3 |
| Number of Outputs | 1 |
| Connectors | Narrow Band Input N female (Opt. 7/16”) Broad Band Input N female (Opt. 7/16” – 7/8”) Output 7/8” (Opt. N – 7/16”) |
| Max Power | Narrow Band Input 500 -1000W Broad Band Input 4000W |
| Working Temperature | -20°C ÷ +50°C |
| Colour | Enamel gray ral 7001 |
| Materials | Aluminium, Brass, Copper, PTFE, Stainless Steel, Silvering (min 12µm thickness) |
Features:
- Distortion – Free Transmission
- Double Balanced Bridge
- Frequency Independent Input Impedance
- Low Loss, High Isolation
- Natural Convection
- Frequency at broadband input can be varied without retuning band-pass cavity filters
- Broadband input can be used as spare input for expansion without requiring modifications of existing band-pass cavity filters
- If narrow band input is the only one being used, an extremely high coupling attenuation (directional coupler attenuation plus filter attenuation) can be achieved for very small frequency spacing
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