HFU HF Underground
Technical Topics => Equipment => Topic started by: SWVBVA on September 02, 2017, 1516 UTC
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Hello All,
Is there anyone out there that owns, or have worked on, a Perseus that knows why they freeze up some times? Mine will operate for about 5 seconds then freeze. When I hit the red "X" to close, nothing the first time but my curser doing circles like it is thinking, click it a second time and the window goes opaque with another window of "Not Responding"
Seems to happen if I have had my computer on for a few hours before I turn the radio on.
Any help would be greatly appreciated.
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I had this software freezing problem when I was feeding Perseus from a power supply with the negative pole connected to the station ground.
However I noticed that the freezing did not occur when I was using Perseus' own switching power supply.
Then I built a separate 5V - 3A power supply with floating output and the problem disappeared.
It seems freezing is caused by some type of ground loop through the USB connection.
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Thank you for the reply! Not an electronics type. How does one get a floating output?
Eric