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6500 case fan sizes? Max DC voltage?

KC2QMA_John Member ✭✭

someone tell me what the size of the two intake fans on the side of
the 6500 are? 80mm, 92mm?

I want to add intake fan filters to prevent and reduce the level of dust or debris from entering case.

What is the maximum supply voltage allowed during receive. I would like to adjust my power supply for optimal efficiency using stock power cable. I know 13.8VDC is default.


  • Chris DL5NAM
    Chris DL5NAM Member ✭✭✭
    edited April 2020
    What do you hope or think what will be the difference between 13,8 VDC and 13,9 VDC or 14,0 VDC. ? Signal goes from S7 to S8 ? Come on, switch on your brain and come back to the ground!
    The RX not working at this voltage level. There voltage converters inside - 5V and 3,3 V and ...

    Reducing of dust with fan filters reduce air flow and that can **** your Flex ! And your lost your warranty at Flex!
  • KC2QMA_John
    KC2QMA_John Member ✭✭
    edited July 2018
    What is the optimal supply voltage allowed during Transmit at Full RF Power?
  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited December 2016
    13.8 VDC at the radio.  Take into account any IR drop due to cable and connector resistance.
  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited March 2017
    I do not recommend using any type of in take air filtering on the FLEX-6000s.  If you are concerned with dust build up, just make a point to **** out the dust 2-3 times a year.

    You can used compressed air to do this.  However, make sure that you use a non-metallic object, like a toothpick to prevent the compressed air from spinning the fans.  Overspin can damage the bearings.
  • KC2QMA_John
    KC2QMA_John Member ✭✭
    edited July 2018
    OK thanks Tim that's exactly what I wanted to know.

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