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Product Description
The VATTENPDC GPS Fixed Attenuator (GNSS Attenuator) is a one input, one output device that operates with a variable attenuation range that can be user selected between 0 - 20dB in a miniaturized housing. The frequency response covers the GPS L1, L2, L5, Galileo and GLONASS frequencies (entire L-band) with excellent flatness. In the normal configuration, the RF output (J1)
passes DC from the connected GPS receiver through the amplifier to the antenna, allowing the GPS receiver to power both the antenna and the mini amplifier.
Electrical Specifications, TA = 25°C
| Parameter | Conditions |
| Min | Typ | Max | Units |
| Freq. Range | Ant – J1 |
| 1.1 |
| 1.7 | GHz |
| In/Out Imped. | Ant, J1 |
|
| 50 |
| Ω |
| Attenuation | Ant – J1, User Selected Attenuation value (X) between 0 - 20dB |
| X-1 | X | X+1 | dB |
| Input SWR | J1 - 50Ω |
|
|
| 1.8:1 | - |
| Output SWR | Ant - 50Ω |
|
|
| 1.8:1 | - |
| Flatness | | L1 – L2 | ; Ant – J1 |
|
| 0.5 | 1 | dB |
| Reverse Isolation | J1 – Ant |
| 35 |
|
| dB |
| Group delay | τd,max- τd,min:Ant – J1 |
|
|
| 1 | ns |
| Flatness |
|
|
|
|
|
|
| Required DC Input | DC Input on J1 |
| 3.6 |
| 15 | Vdc |
| Current | Amplifier Current Draw, All ports - 50Ω |
|
|
| 15 | mA |
Available Options
| Pass/Block DC Options |
|
| Pass DC - PDC | Pass DC J1 to Ant. |
| DC Blocked - DCB | DC Blocked |
| RF Connector Options |
|
| Connector Options | CONNECTOR STYLE |
|
| Type N-female |
|
| Type SMA-female |
|
| Type TNC-female |
|
| Type BNC-female |
Downloads
| File | Type | Description |
| VATTENPDC-specsheet-2015_REV_B.pdf | Spec Sheet | VATTENPDC variable attenuator spec sheet |