40W 1.5MHz-30MHz Shortwave Broadband Linear Power Amplifier HF for HAM Radio QRP. Note: This amplifier has no standing wave protection circuit! Please adjust the antenna standing wave, SWR is less than 2! FM Input power: 5W-10W (PEP) Output power: not less than 40W (PEP) Output SWR requirement less than 2 when working safely Internal low-pass filter for 4 bands.40m, 20m, 15m, 10m bands. 80M meters band for straight-through. Suitable for FT817, IC703 and other professional HAM and all kinds of DIY small power QRP equipment power boost! Please leave note for your special request e. Please do NOT leave negative or neutral feedback without any contact. We care about our valued buyers, if you have any questions, our Customer Service staffs will be very glad to help you. This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Transceivers". The seller is "poe-28" and is located in this country: CN. This item can be shipped worldwide.