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Flex 5000a, KE9NS v 2.8.0.130, preamp question

Paul Krog
Paul Krog Member
edited October 2019 in FLEX Series (Legacy) Radios
Has anyone running ke9ns v2.8.0.130 found the preamp always on during 10 m band SSB operation? All other bands the preamp is selectable on or off but on 10m band it cannot be turned off. Thank you in advance Paul de KR5OG

Answers

  • Alan WA4SCA
    Alan WA4SCA Member ✭✭
    edited May 2020
    Yep.  Open the ANT tab.  You will find a check box which says "Enable Preamp controls on 6m."  I know you said 10m, but just trust me!  Check it, and you will get a popup box which explains that having a preamp is required to insure CE compliance above 28 Mhz.  It you check it, you can control the preamp on both 10m and 6m.
  • Paul Krog
    Paul Krog Member
    edited October 2019
    Alan, awesome That worked, you are the expert today. I have to go one question further now, What is CE compliance and what does the preamp have to do with it? Thanks Paul KR5OG
  • Alan WA4SCA
    Alan WA4SCA Member ✭✭
    edited September 2019
    "CE marking is a certification mark that indicates conformity with health, safety, and environmental protection standards for products sold within the European Economic Area."  As to why, I don't think I have ever heard a detailed explanation.  I do recall it actually had something to do with emissions, but not the details.  Sorry not be be as helpful here.
  • Paul Krog
    Paul Krog Member
    edited October 2019
    Alan, Thanks again for the wonderful fix for my issue and the explanation. Paul KR5OG

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