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- ALDCBS1X8
Product Description
The ALDCBS1X8 GPS Amplified Splitter is a one input, eight output device 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 without external power, Output 1 (J1) passes DC from the connected GPS device through the splitter to the input (antenna port), allowing the GPS receiver to power both an active antenna and the splitter’s internal amplifier. The other RF outputs (J2-J8) are DC blocked and loaded with 200 resistors 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 |
| Ant – Any Output, Unused Outputs - 50W | 1.1 |
|
| 1.7 | GHz | ||||
| In/Out Imped. (1) |
| Ant, J1, J2, J3, J4, J5, J6, J7, J8 |
| 50 |
|
| W | ||||
| Gain (L1) |
| Any Output, Unused Outputs - 50W | 13.0 | 14.0 |
| 15.0 | dB | ||||
| Input SWR |
| All ports - 50W |
|
|
|
|
|
| 2.0:1 | - | |
| Output SWR |
| All ports - 50W |
|
|
|
|
|
| 1.5:1 | - | |
| Noise Figure |
| Ant – Any Output, Unused Outputs - 50W |
| 3.8 |
| 4.3 | dB | ||||
| Gain Flatness |
| | L1 – L2 | ; Ant – Any Output, Unused Outputs - 50W |
| 0.5 |
| 1.5 | dB | ||||
| Amplitude Balance |
| | J1 – J2 | ; Ant – Any Output, Unused Outputs - 50W |
|
|
| 0.5 | dB | ||||
| Phase Balance |
| Phase (J1 – J2) ; Ant – Any Output, Unused Outputs - 50W |
|
|
| 1.0 | deg | ||||
| Isolation |
| Adjacent Ports, Ant - 50W (see plots) | 15 | 20 |
| 25 | dB | ||||
| Group delay |
| td,max - td,min : Ant – J1, J2 - 50W ; Ant – J2, J1 - 50W |
|
|
| 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) |
| -18 |
|
| dBm | ||||
| Current Draw |
| Amplifier Current Draw, All ports - 50W(typical at 5V) |
|
|
| 15 | mA | ||||
Downloads
| File | Type | Description |
| ALDCBS1X8-specsheet-2015.pdf | Spec Sheet | ALDCBS1X8 GPS Splitter Spec Sheet |