PRODUCT OVERVIEW
This is a 3rd order AIS bandpass filter with excellent sideband rejection. This product is ideally suited for AIS receiver applications at 162 MHz*. In the absence of a bandpass filter, strong signals in adjacent bands such as FM can saturate the receiver. This filter is also available in a version with an enclosure.
APPLICATIONS
The AIS band (Automatic Identification System) carries ship location and identity beacons at 161.975 MHz and 162.025 MHz.
Filtering out adjacent VHF marine and pager interference dramatically improves reception quality.
Filtering out adjacent VHF marine and pager interference dramatically improves reception quality.
The filter can be used with AIS receivers, SDR setups, marine tracking, ship monitoring systems, embedded telemetry, and RF front-ends for coastal stations.
SPECIFICATIONS
| Frequency (MHz) | Typical Attenuation (dB) |
|---|---|
| 88 | 68 |
| 98 | 60 |
| 108 | 50 |
| 130 | 23 |
| 140 | 7 |
| 150 | 4 |
| 160 | 2 |
| 162 | 2 |
| 165 | 4 |
| 180 | 9 |
| 250 | 30 |
| 500 | 42 |
AIS uses the high side of the duplex from two VHF radio "channels" (87B) and (88B)
- Channel A 161.975 MHz (87B)
- Channel B 162.025 MHz (88B)
NOTES
- The filter uses SMA-F connectors.
- The Maximum RF input power for this filter is +30 dBm or 1 Watt.
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