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- ALDCBS1X4
Product Description
The ALDCBS1X4 GPS Splitter (GNSS Splitter) is a one input, four output amplified splitter based on the Wilkinson splitter design. The frequency response covers the entire L-band (all GNSS Frequencies) with excellent gain flatness. In the standard configuration, (J1) passes DC from the connected GPS device through the splitter to the input (antenna port). The other RF outputs (J2, J3 and J4) are DC blocked and loaded with a 200Ω resistor to simulate the antenna current draw to prevent false antenna alarm faults.
Electrical Specifications, TA = 25°C
| Parameter | Conditions | Min | Typ. | Max | Units |
| Freq. Range | Antenna – Any Output, Unused Outputs - 50Ω | 1.1 |
| 1.7 | GHz |
| In/Out Imped. | Antenna, J1, J2, J3, J4 |
| 50 |
| Ω |
| Gain | Normal Configuration, Antenna–Any Output | 17.0 | 18.5 | 20.0 | dB |
| Input SWR | All ports - 50Ω |
|
| 2.0:1 | - |
| Output SWR | Normal Configuration , All ports - 50Ω |
|
| 1.8:1 | - |
| Noise Figure | Normal Config., Ant – Any Output, Unused Outputs - 50Ω |
| 4.2 | 4.5 | dB |
| Gain Flatness | | L1 – L2 | ; Ant – Any Output, Unused Outputs - 50Ω |
| 0.5 | 1.5 | dB |
| Amplitude Balance | | J1 – J4 | ; Ant – Any Output, Unused Outputs - 50Ω |
|
| 0.5 | dB |
| Phase Balance | Phase (J1 – J4) ; Ant – Any Output, Unused Outputs - 50Ω |
|
| 1.0 | deg |
| Isolation | Normal Config., Adjacent Ports, Ant - 50Ω (see plots) | 15 |
|
| dB |
| Group delay | τd,max - τd,min :Antenna – J1, J2. J3, J4 -50Ω |
|
| 1 | ns |
| Flatness |
|
|
|
|
|
| Req. DC Input V. | Non-Network Configuration, DC Input on J1 | 3.6 |
| 15 | Vdc |
| Pı dB | Output Power @ 1dB Gain Compression (f = 1.5GHz) |
| -14 |
| dBm |
| Current Draw (1) | Amplifier Current Draw, All ports - 50Ω |
|
| 15 | mA |
Downloads
| File | Type | Description |
| ALDCBS1X4-SpecSheet2015.pdf | Spec Sheet | ALDCBC1X4 GPS Splitter Spec Sheet |