Listening to unencrypted Police/Ambulance/Fire/EMS conversations. Listening to aircraft traffic control conversations. aircraft positions like a radar with ADS-B decoding. Decoding aircraft ACARS short messages. Scanning trunking radio conversations. Decoding unencrypted digital voice missions. maritime boat positions like a radar with decoding. Decoding POCSAG/FLEX pager traffic. Scanning for cordless phones and monitors. and receiving meteorological agency launched weather balloon data. your own self launched high altitude balloon for payload recovery. Receiving wireless temperature sensors and wireless power meter sensors. Listening to VHF amateur radio. Decoding ham radio APRS packets. Watching analogue broadcast TV. Sniffing GSM signals. Using rtl-sdr on your Android device as a portable radio scanner. Receiving GPS signals and decoding them. Using rtl-sdr as a spect analyzer. Receiving weather satellite images. Listening to satellites and the ISS. Listening to unencrypted communications. Radio astronomy. Monitoring meteor scatter. Listening to FM radio, and decoding RDS information. Listening to broadcast radio. Use rtl-sdr as a panadapter for your traditional hardware radio. Decoding taxi mobile data terminal signals. Use rtl-sdr as a true random number generator. Listening to amateur radio hams on SSB with LSB/USB modulation. Decoding digital amateur radio ham communications such as CW///SSTV. Receiving HF weatherfax. Receiving digital radio monodiale shortwave radio (). Listening to shortwave radio. Looking for RADAR signals like over the horizon (OTH) radar, and HAARP signals. Material:Metal colour:As Shown Package Contents: 1 x Full Band SDR Receiver Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.