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Product
FTDPDC3-BD
• 2 CHANNELS COMBINER • DOUBLE BALANCED BRIDGE • FM BAND 87.5÷108 MHz • BAND II
- 2 CHANNELS COMBINER
- DOUBLE BALANCED BRIDGE
- FM BAND 87.5÷108 MHz • BAND II
The Double Balanced Bridge System consists of two Band-Pass Filters, two -3dB Couplers and an Absorber. One of the two inputs has a narrow-band characteristic (complying with the band-pass functions of the band-pass filters), while the remaining input shows 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 | FTDPDC3-BD – Double Bridge Type |
| Impedance | 50 Ohm |
| Frequency Range | 87.5-108 MHz |
| VSWR ±150 KHz | 1.1:1 max |
| Insertion Loss | at 0f 0.25 dB Max (Narrow Band Input) 0.1 dB Max (Broad Band Input) |
| Return Loss ±150Khz | ≤ -26 dB |
| Isolation ± 2 MHz | N/B Æ B/B ≥ 32 dB B/B Æ N/B ≥ 40 dB |
| No. of Input | 3 (2 Narrow Band + 1 Broad Band) |
| No. of Output | 1 |
| Connectors | 1+5/8” Narrow Band Input 1+5/8” Broad Band Input 3+1/8” Output (Opt. 1+5/8”) |
| Max Power | 5 KW on Narrow Band 15 KW on Broad Band |
| 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
- Frequency Independent Input Impedance
- Frequency at the broadband input can be varied without retuning the band-pass cavity filters.
- Broadband input can be used as spare input for expansion without requiring modification of existing band-pass cavity filters.
- If only narrow band input is being used, an extremely high coupling attenuation (directional coupler attenuation plus filter attenuation) can be achieved for very small frequency spacings.
- Low Loss, High Isolation
- Natural Convection
| Dimensions | 1300(Max size)×960×660 mm (51.2(Max size)×37.8×26.0 inch) (H×L×W) |
| Net Weight | ≅130 Kg |
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