Hf Signal Identification

Most signals are received and recorded using a software defined radio such as the rtl sdr airspy sdrplay hackrf bladerf funcube dongle usrp or others.

Hf signal identification. Signals below 17db are likely to be too weak even for cw. Over time it has grown significantly with now almost 400 known signals with both waterfall images and sound. So the ids will start with the most common modes and move forward from. Anyone can edit this wiki so if you see missing or wrong information please feel free to correct it by clicking the edit.

High frequency hf is the itu designation for the range of radio frequency electromagnetic waves radio waves between 3 and 30 megahertz mhz. This wiki is intended to help identify radio signals through example sounds and waterfall images. High frequency data link hfdl hfdl also known as hf high frequency 3 30 mhz acars arinc 753 arinc 635 and hf high frequency 3 30 mhz datalink is a data link that aircraft use to communicate short messages over long distances using hf high frequency 3 30 mhz signals. The goal of this wiki is to help people id sounds and signals they might come across on the radio primarily in the hf 3000 to 30000 khz and mw 300 to 3000 khz bands.

The signal id wiki sigidwiki is our sister site that we started a few years ago as a way to collect and catalog various types of signals that an sdr user might see and hear on the airwaves. Most signals are received and recorded using a software defined radio such as the rtl sdr hackrf bladerf funcube dongle usrp or others. The signal strengths are from about 12db to 20db so they range from fair to weak. Signal identification guide this wiki is intended to help identify radio signals through example sounds and waterfall images.

Hf software decoders from the radioreference wiki without a doubt decoding digital signals at the software level has grown in recent years easily supplanting the hardware decoders since software packages can be updated and are generally free of hardware constraints there are a few that need a dongle though. It is also known as the decameter band or decameter wave as its wavelengths range from one to ten decameters ten to one hundred meters. A signal of 0db or above can be considered strong to very strong easily strong enough for cw and probably ssb. The limit of ft8 is around 24db that is very weak indeed.

2 9 mhz megahertz mhz 10 6 hz 22 mhz megahertz mhz 10 6 hz. Of course not all possible signals can be identified and certainly they cannot all be presented here. Anyone can edit this wiki so if you see missing or wrong information please feel free to correct it by clicking the edit with.