Features 1、6 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. 2、Parameters: HF low pass filter supply voltage 12V‑16V, operating current 500mA, input power 200W CW; 300W SSB, harmonic rejection: > 30dB, 7th order filter. 3、Applicable: Low pass filter board for shortwave power amplifier radio, HF low pass filter, input and output connectors: sma k, high level control. 4、Premium Material: Low pass filter board module is made of premium PCB material, safe and durable, long service life. 5、Superior Performance: Low pass filter board module has excellent contact performance, high sensitivity and easy installation. Specification Item Type: Low Pass Filter Board Material: PCB Size: Approx. 150x80x30mm / 5.91x3.15x1.18in Operating Current: 500mA, 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 Input Power: 200W CW; 300W SSB Filter Structure: Elliptic Filter Filter Steps: 7 Input and Output Connectors: SMA k Control Mode: High Level Control Control Current: 1mA Package List 1 x Low Pass Filter Board