AIS 162MHz Marine Tracking Low Noise Preamplifier with BPF

This AIS 162MHz Marine Tracking Low Noise Preamplifier is designed to enhance weak VHF AIS signals (161–163 MHz) and extend their reception range. It features a low-loss input bandpass filter to protect against interference from out-of-band stations, preventing overload. For optimal performance, the preamplifier should be installed as close as possible to the AIS antenna. The length of the cable connecting the AIS preamplifier to the AIS receiver or SDR dongle is not critical, as the preamplifier compensates for cable loss and improves sensitivity, often enhancing performance by up to 150%

 

AIS 162MHz Marine Tracking Low Noise Preamplifier Appearance:

AIS 162MHz Marine Tracking Low Noise Preamplifier Gain:

7.1 MHz <-76 dB
14.15 MHz -83 dB
21.2 MHz -72 dB
28.4 MHz -73 dB
50 MHz -69 dB
54 MHz -68 dB
70.2 MHz -60 dB
88 MHz -51 dB
108 MHz -40 dB
144.1 MHz -10 dB
146 MHz -7 dB
148 MHz -3.5 dB
162 MHz +24.8 dB, NF=1.4 dB, Input RL -20 dB, IP3out > 37 dBm
288 MHz -22 dB
430 MHz -50 dB
440 MHz -50 dB
Power consumption +12 V, 120 mA
Connectors: “N” Female
These excellent results were achieved by careful selection of components and design.

 

Measured characteristics of AIS 162MHz Marine Tracking Low Noise Preamplifier:

 

AIS 162MHz Marine Tracking Low Noise Preamplifier HF Attenuation:

 

AIS 162MHz Marine Tracking Low Noise Preamplifier 6m, 4m, and FM Attenuation:

 

AIS Marine Tracking Low Noise Preamplifier gain zoomed 162.025MHz

 

What others say about AIS Preamplifier with Band Pass Filter and Antennas:

I got the 162AIS10 Yagi Antenna up yesterday.
They’re looking pretty good.
I’ve received up to 553 km distance during the night to King Island Lighthouse. That’s pretty good, I think.
Leigh VK2KRR
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There has been some further development since the last email.
Have now been able to hear out to 1073 km on the marine tracking array. Keeping in mind that marine tracking transmitters are only 12 watts FM.

Some additional information.

Thank you for sending the 70 cm yagis. More work ahead for me.
VK2KRR’s Facebook page address is https://www.facebook.com/groups/vk2krrdxrpm
Leigh VK2KRR
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John EI2FG
I find that my AIS station is working so much better now.
This picture from the Marine Traffic website shows the ships that my station is receiving.

My station is #3145, With best regards, John EI2FG