Small and cost-effective Pre-Filtered Low Noise Amplifier 160 - 164 MHz with excellent rejection of FM band. The AIS or Automatic Identification System operates at 161.975 MHz & 162.025 MHz. Within the AIS band, the Gain is 20 dB while the Noise Figure is less than 1 dB. The RF Input has an ESD diode for static protection. The device can be powered using either the Micro USB port or with a DC supply using the two-pin header.
The device has a built-in Bias tee. It can therefore also be powered with DC over the RF output cable. Many software-defined radios have bias tee's on their RF input port that can be used for this purpose.
Please note the following precaution: Since the Bias Tee is installed. When powering the device using either the DC header or the USB connector, +5 VDC will appear on the RF output. If your receiver does not have a DC blocking capacitor on its input or some other form of DC voltage protection, this voltage WILL damage your receiver
It is recommended that the USB Bias Tee be used to power this module.
Weather radio broadcasts in the United States (NOAA NWR) and Canada (Weatheradio Canada) occur on seven dedicated frequencies: 162.400, 162.425, 162.450, 162.475, 162.500, 162.525, & 162.550 MHz.
- AIS and Weather Band signal reception in a weak signal environment
- Rejection of strong signals in Cellular, LTE, UHF and 915 MHz, 2.4 GHz ISM bands
Maximum RF Input Power
RF input and output connectors are SMA-F.