I have a brand new Ranger RCI-2995DX CF 10/12 Meter Radio that I purchased this year and have had in operation for about 8 months.
Recently I purchased a pair of Kenwood HS-5 headphones to use with this radio.
The problem is that I get a fairly loud cooling fan hum noise through the headset from the cooling fans on the back of the radio. If I unplug the fans from power, the hum goes away.
I have put some ferrite bead chokes on the fan power wire, but it did not help.
Any help from members here would be appreciated.
Recently I purchased a pair of Kenwood HS-5 headphones to use with this radio.
The problem is that I get a fairly loud cooling fan hum noise through the headset from the cooling fans on the back of the radio. If I unplug the fans from power, the hum goes away.
I have put some ferrite bead chokes on the fan power wire, but it did not help.
Any help from members here would be appreciated.