Amplifier with integrated band pass filter for improved reception on 162MHz/AIS frequencies.
This product from our friends at Uputronics is a cost effective SAW based filter and amplifier which give excellent performance gains.
It is compatible with our dAISy, dAISy 2+ and dAISy HAT AIS Receivers, improving their range in most situations. In addition, this preamp is also compatible with most USB SDR Dongles such as the RTL USB, Airspy, Fun Cube.
This unit is a filter and preamp designed to go between an AIS receiver or SDR receiver and an antenna. This unit is a filter and preamp designed to go between an AIS receiver or SDR receiver and the antenna. You can power it with 5V from either a bias tee or a USB-C cable (not included, see options). We also offer various matching RF adapters and cables.
Using a SAW bandpass filter and a low noise amplifier (LNA), it stops out of band intermodulation while providing additional gain for increased sensitivity. The LNA is before the SAW filter. This particular model is tuned for use with 159-163MHz. To block strong commercial FM signals a high pass filter is installed before the LNA.
The LNA used is a MiniCircuits PSA4-5043+ which provides at least 20dB of gain @ 161MHz. To stop out of band intermodulation an 161MHz SAW bandpass filter, which has a 7.6MHz bandwidth is also present. The insertion loss of this filter is approximately 1.4dB.
High quality SMA female connectors are fitted for antenna input and radio output, a RED power indicator is provided.
| Specification | Value |
| Gain | min. 22dB |
| Noise figure | 0.78dB |
| RF connectors | SMA female |
| Power source | USB |
| Supply voltage USB | 5V |
| Supply voltage bias tee | 5V |
| Supply current |
50mA |
| Case dimensions | 53mm x 40mm x 12mm (2.1" x 1.6" x 0.5") |
| Weight |
36g (1.3oz) |
More information is available in the datasheet.
Warranty, shipping, etc.
We offer a 12 month warranty on this product (excluding physical or water damage). Please contact us if the device prematurely fails or if you encounter any other technical issues.
We ship with US Postal Service First Class Mail, UPS and DHL Express. First Class Mail delivery is very reliable, however tracking is only available for a few countries. Please contact us if you have special shipping requirements.
Note: For international shipping, VAT and other import or handling fees may be applied by your local customs. These are the responsibility of the recipient. We will always declare the purchase price excl. shipping.
