This amplifier without standing wave protection circuit! Please adjust the antenna standing wave till SWR is less than 2. Usually it cost about 35USD-50USD.
If you receive defective item, please kindly notify us within 14 days. The item "40W 1.5MHz-30MHz Shortwave Broadband Linear Power Amplifier HF for HAM Radio QRP" is in sale since Tuesday, September 22, 2020. This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Amplifiers".The seller is "itisnew" and is located in Shenzhen. This item can be shipped worldwide.