<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><div> <div> <div style="text-align:left;"> </div> <div style="text-align:center;"> <br /> </div> </div> <div style="padding:15px;border:1px solid #AEAEAE;"> <div style="text-align:left;"> 50W HF Amplifier with TX/RX 3-24MHz High-frequency Power Amplifier 13.8V for USDX FT-817 dotcom IC-703 IC-705 IC705 Elecraft KX3 QRP FT-81<br /> <strong>Feature:</strong><br /> <strong>1. Automatic switching: </strong>Built-in TX/RX auto cut circuit, no need for special PTT line, with signal input automatically switch to transmit mode.<br /> <strong>2. Fan: </strong>Built-in powerful fan, the temperature reaches the set value automatically open cooling.<br /> <strong>3. Size: </strong>The size of the power amplifier is about 150 * 50mm, which is small and portable.<br /> <strong>4. Shell material: </strong>The power amplifier is made of excellent and ABS material, with fine workmanship.<br /> <strong>5. Attention: </strong>Before use, you need to use nanoVNA or similar tools to determine the transmitting antenna impedance of 50Ω, SWR &lt; 1.5. Otherwise, the power transmitter tube will be damaged due to the mismatch of transmitting impedance!<br /><br/><br/><span style="color:black;font-family:inherit;font-size:12px;"><strong>Specification:</strong></span><br /> <span style="color:black;font-family:inherit;font-size:12px;">Certification: CE</span><br /> <span style="color:black;font-family:inherit;font-size:12px;">Origin: Mainland China</span><br /> <span style="color:black;font-family:inherit;font-size:12px;">Model Number: HF Power Amplifier<br /> Operating frequency: 3 - 24MHz<br /> Transmission and traction power: 1-5W<br /> Output power: 50W<br /> Interface impedance: 50 Ω<br /> Working voltage: 13.8V<br /> Shell material: ABS<br /> Size: about 150x50mm/5.91x1.97in</span><br /> <br /> <p style="color:black;font-family:inherit;font-size:12px;"> <strong>Note:</strong><br /> Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!<br /> Please allow 1-2cm measuring deviation due to manual measurement. </p>&nbsp; </div> <div style="text-align:left;"> </div> </div> <div style="text-align:center;"> <br /> </div> </div> <div style="padding:15px;border:1px solid #AEAEAE;"> <div style="text-align:left;"> 1 X High Frequency Power Amplifier<br /> 1 X Power Cord&nbsp; </div> <div style="text-align:left;"> &nbsp; </div> </div> <div style="text-align:center;"> <br /> </div> <div style="text-align:left;"> <br /> </div> <div style="text-align:left;padding:15px;border:1px solid #AEAEAE;"> <span> </span> </div> <p style="text-align:left;"> <br /> </p> <p style="text-align:center;"> <br /> </p> <p style="text-align:left;"> <br /> </p> <p style="text-align:left;"> <br /> </p> <p style="text-align:left;"> <br /> </p> <p style="text-align:left;"> <br /> </p> <p style="text-align:left;"> <br /> </p> <p style="text-align:left;"> <br /> </p> <p style="text-align:left;"> <br /> </p></div></div>