Note: 1. Cannot turn on two bands of filters at the same time._x000D_2. Please allow for some errors in manual measurements. Specification: Item Type: Low Pass Filter Board_x000D_Material: PCB_x000D_Size: Approx. 150x80x30mm / 5.91x3.15x1.18in_x000D_Supply Voltage: 12V-16V_x000D_Operating Current: 500mA,_x000D_Frequency Range (6 Bands): 28MHz-29.700MHz, 24.890MHz-24.990MHz, 21MHz-21.450MHz, 14MHz-14.350MHz, 7MHz-7.3MHz and 3.5Mhz-3.9MHz_x000D_Input Power: 200W CW; 300W SSB_x000D_Filter Structure: Elliptic Filter_x000D_Filter Steps: 7_x000D_Input and Output Connectors: SMA k_x000D_Control Mode: High Level Control_x000D_Control Current: 1mA Features: 16 Bands: Low pass filter board frequency range is 28MHz?29.700MHz,24.890MHz?24.990MHz,21MHz?21.450MHz, 14MHz ?14.350MHz,7MHz?7.3MHz,3.5Mhz?3.9MHz. 2Parameters: HF low pass filter supply voltage 12V?16V, operating current 500mA, input power 200W CW; 300W SSB, harmonic rejection: > 30dB, 7th order filter. 3Applicable: Low pass filter board for shortwave power amplifier radio, HF low pass filter, input and output connectors: sma k, high level control. 4Premium Material: Low pass filter board module is made of premium PCB material, safe and durable, long service life. 5Superior Performance: Low pass filter board module has excellent contact performance, high sensitivity and easy installation. PackageList: 1 x_x000D__x000D_LowPassFilterBoard