Features: 1. Directional Logarithmic Periodic Measurement Antenna Ht666, Gain Up To 6 Db. 2. Designed For Radio Frequency Measurements In The Frequency Range 600 To 6000 (Field Strength Measurement And Amplitude Direction Finding Of Electromagnetic Radiation Sources 3. The Antenna Has Adjustable Gain Within The Operating Frequency Range. It Is Recommended To Use A Spectrum Analyzer To Conduct Research On The Electromagnetic Environment 4. The Antenna Comes With A 30cm Sma Cable For Connecting It To A Spectrum Analyzer Or Other Receiving Device. 5. Easy To Carry And Store Application; Using The Measurement Antenna You Can Do The Following: 1. Analyze The Radio Frequency Environment; 2. Aim At The Antenna Of The Base Station; 3. Detect Signal Sources Or Interference Sources; 4. Analyze The Operating Parameters Of The Amplifier (Repeater). Description: 1. Working Frequency Range: 600-6000Mhz 2. Antenna Gain: From 1 To 6.5 DB 3.Vswr Less than 2.2 4.Polarization: Linear 5. Wave Impedance: 50Ω 6. Maximum Input Power: 10W 7. Connector: Sma-Busbar 8. Width 20.89 Cm x Length 36.86cm 9. Communication Standards, Multi-Band: LTE 800,LTE 900;GSM 900;UMTS900;GSM 1800;LTE 1800;UMTS 2100;WiFi 2.4 GHz;LTE 2600;WiFi5 GHz; Material: PCB Color as shown Package Contents: 1 x Log Periodic Antenna 1 x SMA Cable 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.