A few days ago I hooked up my DX 2547 to try it out with some DX rolling and noticed I had to turn up the RF power adjustment a little higher on dead key to get my meter to swing as high as some of my other radios. So I investigated the modulation on AM and found it was only about 75%. So I tried 2 other meters for the same results. I then decided to bypass all the equipment tied in to my system and just test my meters with just the radio,the meter, and a 300 watt dry dummy load. With that test all 3 meters showed over 100% modulation. Confused I hooked the radio back up to the way it was originally with my preferred Meter, KL-503 P amp, and a low pass filter and my antenna. Then we was back to 75% modulation again. Do I need to turn up the AMC to compensate for all the equipment in line because I had to turn the dead key up to almost 3 watts to get the meter to swing to 300 watts with the amp turned on ????
