Looking for an AM receiver chip that can demodulate the aviation frequency band

hhb0512

Looking for an AM receiver chip that can demodulate the aviation frequency band [Copy link]

Hello everyone! I want to find a demodulation chip that can demodulate aviation voice (frequency band: 118~137MHz, AM modulation), please recommend it. Thank you!!

qwqwqw2088

Directly use RTL2832U+R820T2 chipset 100KHz-1766MHz, the working frequency range is all shortwave amateur bands

RF-刘海石

qwqwqw2088 posted on 2019-5-14 14:24 Directly use RTL2832U+R820T2 chipset 100KHz-1766MHz, the working frequency range is all shortwave amateur bands

Hahaha, good idea, TV stick,,,,, sdr, very cheap and cost-effective

RF-刘海石

A few days ago, a company asked me to work on this aviation receiver. I am only halfway done. I have not finished it yet. I used the common down-conversion method to make it, filter, low noise amplifier, mixer, local oscillator, intermediate frequency filter, AGC, and then I want to use ADI's detection chip to detect the envelope, filter, and voice amplification. I feel that the most important part here is the AGC part. The amplitude of the AM signal directly affects the hearing. So AGC must be used.

qwqwqw2088

RF-Liu Haishi published on 2019-5-14 15:48 A few days ago, a company asked me to do this aviation reception. I am only halfway done and have not finished it yet. I used the ordinary down-conversion method to do it...

The AGC part itself is more difficult to handle and it is easy to introduce noise