USDX ULTRA SOT POTA Pocket Radio 4 Bands USDX USDR Built-in Battery 10/15/20/40M HF SSB QRP Transceiver Compatible with

Introduction This is a HF band QRP SSB CW transceiver It is very small and easy to carry outdoors It uses a 0 96 OLED LCD screen for easy reading Built in speaker support to connect to PC use FT8 jt65 FT4 and other digital modes support CW mode software control and support CW automatic decoding Feature 4 band coverage 10 15 20 40M 4 Band modified based on the source program and different from the source program Excellent PCB design and excellent circuit performance Using 13 8V power supply the power can be up to 3 5w in three bands and the SOT 223 packaging pad required for upgrading is reserved High launch efficiency with 40m 20m efficiency higher than 80 and 15m efficiency higher than 60 Note transmission is prohibited in non 40m 20m 15m 10m band and can only be used for reception Ultra small volume and weight 160 50 20MM excluding protruding parts body weight 340g very suitable for mountaineering Multiple interface cat MIC key audio headset supporting Android adaptation 100V or 250V cog NPO capacitors are used for LPF Use Omron magnetic holding relay Use ne5532 operational amplifier chip Built in high quality speakers BNC antenna interface Specification Frequency Range Receiving 0 5MHz 30MHz theoretically it can reach the limit of SI5351 Transmission 1 8 30MHzWorking mode CW AM SSBMinimum step 10HzAntenna Impedance 50ΩOperating temperature range 0℃ 50℃Power supply voltage 10 5 16V DC the