ขาย 100KHz-1.7GHz Full Band UV HF RTL-SDR USB Tuner Receiver R820T+8232U Ham Radio 5yDB ราคาที่ดีที่สุด

"Description: WHAT IS SOFTWARE DEFINED RADIO (SDR)? In traditional hardware radios, the mathematical operations required to decode and process radio signals are performed using analogue circuitry. Recently, computers have become powerful enough to perform the required mathematical calculations in software, hence the term software defined radio. This has led to advanced radios that previously required complicated analogue hardware now being able to be implemented easily in software. This has reduced the cost of advanced radio capabilities such as wideband tuning and waterfall displays. Functions: Listening to unencrypted Police/Ambulance/Fire/EMS conversations. Listening to aircraft traffic control conversations. Tracking aircraft positions like a radar with ADS-B decoding. Decoding aircraft ACARS short messages. Scanning trunking radio conversations. Decoding unencrypted digital voice transmissions. Tracking maritime boat positions like a radar with AIS decoding. Decoding POCSAG/FLEX pager traffic. Scanning for cordless phones and baby monitors. Tracking and receiving meteorological agency launched weather balloon data. Tracking 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 spectrum analyzer. Receiving NOAA weather satellite images. Listening to satellites and the ISS. Listening to unencrypted military communications. Radio astronomy. Monitoring meteor scatter. Listening to FM radio, and decoding RDS information. Listening to DAB 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/PSK/RTTY/SSTV. Receiving HF weatherfax. Receiving digital radio monodiale shortwave radio (DRM). Listening to international shortwave radio. Looking for RADAR signals like over the horizon (OTH) radar, and HAARP signals. Specifications: Size: 8.5x5cm/3.35x1.97"" Quantity: 1 Set Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! No Retail Package Package Includes: 1 x 100KHz-1.7GHz full band UV HF RTL-SDR USB Tuner Receiver/ R820T+8232 Ham Radio 1 x USB Cable 1 x Antenna"