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My brand new PGXL sounds like a Hoover vac cycling on and off.
Those of you with experience using the PGXL for some time give me a heads up, please. I just received the amp and have been putting it through its paces. My principal mode of operation is CW but I needed to try all modes. First, this amp is on 120 mains and not 240. The max power I am delivering (intentionally) is ~600 watts. I have had no issues with the amp performing as advertised on all bands and modes. However, when I make a few FT8 contacts in a row, the fans start cycling and are pretty loud sounding like the turbine in a jet engine. The amp is remote in a back room but I hear it all the way into my office where I am operating the station. Is this normal? I understand the fans need to be variable speed and they seem to be doing their thing. The temp never goes above 40 to 45 c. Let me know folks and thanks.
Comments
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The amp does get noisy. A little surprised that it's that loud at only 40-45 C. Wait until it gets to 55-60 c and it will really get your attention.
K4QXX
Burch
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Which cooling mode are you using?
Standard, Contest or Broadcast?
When you run power, you do need to deal with a lot of internally generated heat and you do need the fans to cool the device.
0
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