Features: The user can use SDR software to receive electromagnetic waves at 100KHz-1.7GHz. The receiver uses RTL2832U + R820T program, utilizes the Q channel of RTL2832U, adds support for 100KHz-24MHz frequency, and receives electromagnetic waves at 100KHz-1.7GHz. Listen to unencrypted police/ambulance/fire/EMS calls. Listen to calls from air traffic control. Track aircraft positions like a radar with ADS-B decoding. Decode aircraft ACARS short messages. Scan trunking radio calls. Decode unencrypted digital voice transmissions. Track maritime boat positions like a radar with AIS decoding. Decode POCSAG/FLEX pager information. Scan for cordless phones and baby monitors. Track and receive data from weather balloons launched by meteorological agencies. Track your own launched high-altitude payload recovery balloon. Receive wireless temperature sensors and wireless power meter sensors. Description: RTL-SDR is an extremely cheap software-defined radio based on DVB-T TV (Digital HD TV) USB receiver dongles that have the RTL2832U chip in them. Listen to VHF amateur radio. Decode APRS packets from amateur radio. Watch analog broadcast TV. Sniff GSM signals. Use rtl-sdr on your Android device as a portable radio scanner. Receive GPS signals and decode them. Use rtl-sdr as a spectrum analyzer. Receive NOAA weather satellite images. Listen to satellites and the ISS. Listen to unencrypted military communications. Radio astronomy. Monitor meteor scatter. Listen to FM radio and decode RDS information. Listen to DAB broadcast radio. Use rtl-sdr as a panadapter for your traditional hardware radio. Decode signals from taxi mobile data terminals. Use rtl-sdr as a true random number generator. Listen to amateur radio amateurs on SSB with LSB/USB modulation. Decode digital amateur radio amateur communications like CW/PSK/RTTY/SSTV. Receive HF weather fax. Receive digital radio shortwave radio (DRM). Listen to international shortwave radio. Look for over-the-horizon (OTH) radar signals and HAARP signals. Note: This is a DIY kit, it has not been assembled yet. Specification: Shell Material: aluminum Color: Colorful Size: 58*22*15mm Package Contents: 1 x 100KHz-1.7GHz RTL-SDR USB Tuner Receiver DIY Kit 1 x USB Cable 1 x Antenna