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Strong spur at 4241 kHz

KD2OM
KD2OM Member ✭
edited June 2020 in FLEX-6000 Signature Series

Answers

  • Lionel
    Lionel Member ✭✭✭
    edited April 2020
  • Duane_AC5AA
    Duane_AC5AA Member ✭✭✭
    edited April 2020
  • Lionel
    Lionel Member ✭✭✭
    edited April 2020
  • KD2OM
    KD2OM Member ✭
    edited April 2020
  • Thomas PA1M
    Thomas PA1M Member ✭✭
    edited April 2020
  • Tom W3FRG
    Tom W3FRG Member ✭✭
    edited April 2020
  • KD0RC
    KD0RC Member, Super Elmer Moderator
    edited April 2020
  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited April 2020
  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited April 2020
  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited April 2020
  • Patrick
    Patrick Member ✭✭✭
    edited June 2020
    Many times problems like this are not engineered out, because it would add cost, such as PCB board re-layout.  Especially if it is caught in the development process.  Cost would be engineering labor, new layout design and proof and production, then the cost of the added parts.  So a decision is made, since, not in the ham bands to wait or not do anything with this.  These cost would increase unit cost.  Another words the bottom line profit per unit.  This is an important business consideration. 
  • KD2OM
    KD2OM Member ✭
    edited April 2020
    I would normally agree with you Pat but Tim says it is a spurious from an internal switcher. Switcher noise should be able to be suppressed. 

    Steve KD2OM 
  • Patrick
    Patrick Member ✭✭✭
    edited April 2020
    No, that is what I was talking about, it would require additional design changes.  It would take extra components as the switcher is an integrated device.  I had this same problem on a Flex3000, it was fixed with added bypass capacitors of appropriate values.  Work was done by Mr. Youngblood himself.  
  • Patrick
    Patrick Member ✭✭✭
    edited April 2020
    Maybe I was not clear.  I said development.  But I was thinking about the entire development cycle, from initial design to production.  The later in the process you fix problems means increased costs per unit. 

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