Description

100W FM VHF 80Mhz-170Mhz RF Power Amplifier Board AMP DIY Kit for Amateur Radio Description 100W FM VHF 80Mhz-170Mhz RF Power Amplifier Board AMP DIY Kit for Amateur Radio NOTE: MRF186 old used These are all the parts, it need you diy welding, Not exactly the same as the picture PCB SIZE :13.5CM x5cm Amplifier output: 80--100W Frequency range 80--120Mhz (input 1--1.5W) 140--170Mhz (3--4W) Power : DC 24--26v current: 5-7A 1: installation steps According to the picture data according to welding, installation drawings. 2: debugging steps: Welding completed, installed radiator First, do not install MRF186 (XRF186) Connect the power supply 24V adjust the bias voltage of 3.5V and then disconnect the power supply Install the MOS power tube MRF186 (XRF186), pay attention to unplug the electric soldering iron, soldering iron welding using waste heat, preventing electrostatic breakdown of MOS power transistor 3: connect the power meter, dummy load, first turn on the power, adjust the quiescent current, 200--800MA, 400MA is the best 4: the test power connected to push, push, push FM maximum 1.5W, maximum VHF 4W FM and VHF, the basic do not adjust, promote the UHF Max 7W-8W, UHF adjusts the variable capacitor to obtain optimum output power Warning: input maximum FM VHF 1.5W, maximum 4W, maximum 7W-8W output UHF, maximum 100W, Output Disable open circuit, short circuit package ： 1pcx 100W FM VHF 80Mhz-170Mhz RF Power Amplifier Board AMP DIY Kit for Amateur Radio If you have any questions, please contact us in time, we will help you deal with the problem for the first time. Shipping Item will be shipped within 24 -48 hours after full payment is received. Normally the shippment to worldwide is used to take 15 to 30 business days, exclude Sat & Sun. Payment Payment must be received in 7 business days of auction closing. Please leave note for your special request (e.g. Colors or Size) in ebay note when you pay the order. Any special request cannot be accepted after 24 hours of payment,because most of orders will be processed instantly and same day dispatched. Contact Us If you have any questions, please feel free to email our servicer ，and we will reply you ASAP. If no response within 24 Hours, please check the spam of mail box or kindly re-send it to us. We greatly appreciate your POSITIVE feedback. Please do NOT leave negative or neutral feedback without any contact. If you haven't received item in 45 days, please contact us and we will arrange refund or resend Feedback We care about our valued buyers, if you have any questions, our Customer Service staffs will be very glad to help you. We try our best to reply your email as soon as possible, please kindly allow 24 hours(working day) for us to response. Thank you. We greatly appreciate your POSITIVE feedback. Please do NOT leave negative or neutral feedback without any contact.