Portable Spectrum Analyzer Built-In Battery, Supports Pc Connection, 2.8-Inch Capacitive Touch Screen, Frequency Accuracy 1ppm Onboard: Passive Buzzer Portable Spectrum Analyzer Developed By Kaashoek. After We Launched , The Community Has Been For A Similar Portable Spectrum Analyzer, And Now We Have Built It In The Same Size And Cost As . Inputting A Signal Exceeding The Damage Power (20dbm (100mw)) Will Damage . Please Connect A Suitable Attenuator When Testing The Transmitter! 1. Monitor: 2.8 inches, 320X240, resistive touch 2. Low input port (high performance): 100kHz-350MHz 3. High input port (performance limited): 240MHz-960MHz 4. Resolution filter: From 3kHz to 600kHz 5. Low output port (sine wave): 350MHz 6. Low output port power: -76dBm to7dBm 7. High output port (square wave): 240MHz-960MHz 8. High output port power: 32dBm to 16dBm 9. Scan points displayed: Max 290 10. 0-350MHz fastest scanning time: 405ms 11. Minimum zero span time: 1.8ms 12. Low input port displays average noise level: -146dBm/Hz (-111dBm@3kHz ) 13. High input port displays average noise level: -163dBm/Hz (-128dBm@3kHz ) 14. Phase noise (10kHz offset): -83dBc/Hz 15. Phase noise (100kHz offset): -98dBc/Hz 16. Low input port 1dB compression point: -2dBm 17. High input port 1dB compression point: -6dBm 18. Low input port third-order point: +24dBm 19. Frequency error: Less than 2ppm 20. Frequency stability: Less than lppm 21. Communication interface: USB type-C (communication mode: CDC serial) 22. Power supply: USB 5V 150mA, built-in 650mAh battery, maximum charging current 300mA 23. Overall dimensions: approximately 58.7mm x 91.3mm x 17.1mm (excluding protruding parts) 24.Colour:black 25.Material:ABS Package Contents: 1 x Spectrum Analyzer 1 x Black Hard Box 1 x Antenna 1 x Data Cable 1 x Lanyard 2 x Adapter Cable 1 x Nut Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Only the above package content, other products are not included. Note: Light reflection 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.