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meanwhile out in the garage ...

Discussion in 'Announcements & Open Forum' started by kopcicle, Oct 23, 2018.

  1. kopcicle

    kopcicle Sr. Member

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    That's up to Karilee. Not my radio. I did the cold iron resistance checks, slow burn in, initial alignment, voltage checks, and put it on her bench. Likely I'll never see the inside of it again.

    her_deskF.jpeg
    Now that SB-101 to the left of the HW-101 is a different story. I have her permission to update and modify as long as any modification can be returned to stock.
    That's actually next here as soon as ...


     

  2. kopcicle

    kopcicle Sr. Member

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    MXP-MRF101-configuration-large.jpg
     
  3. LeapFrog

    LeapFrog Wielding Hanlon's Razor

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    MRF101AN,
    125 Watts CW @ 27 MHz :cool: Cool!
    130 Watts CW @ 13.56 MHz Really Cool!
    Damn, they go to VHF too!!

    And the MRF300AN with even more Pout !
     
  4. kopcicle

    kopcicle Sr. Member

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    cool , someone bothered to follow the links.
     
  5. kopcicle

    kopcicle Sr. Member

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    uBitx_top.png uBitx_top_3d.png
     
    Shadetree Mechanic and Tallman like this.
  6. Tallman

    Tallman W9WDX Amateur Radio Member, KW4YJ EXTRA class

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    Can you get the circuit boards?
     
    Shadetree Mechanic likes this.
  7. kopcicle

    kopcicle Sr. Member

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    the top board for https://ubitx.net/tag/ae7eu/ is all on Martin. Good luck :)
    Martin is as a rule totally open source when it comes to amateur radio.
    Due to the rest of his life he has limited time budgeted for these projects, offers zero support, has no interest in marketing, and seems to be a decent sort :)

    The uBitix however is $139 , no waiting, step right up.

    Our take on the NXP reference designs are still a ways off. Actually in alpha revision hell if you must know. You're better off getting the "design essentials kit" direct from NXP as ours is a bit more involved. The hints have been given elsewhere but here's a few more hints.

    Three rules of "Thermogoddamnics"
    1)you can't win
    2)you will loose
    3)you have to play

    Corollaries

    You can initiate a holding or delaying action but in the end the entropy arrow wins.
    The limiting factor is instantaneous junction temperature.
    Less heat = more current drain (see rule 1)
    Efficiency < dissipation = space heater , BJT's still have their place but in the end it's heat that limits their use .
    Efficiency > dissipation still = dissipation , you still have to dump heat but it helps. 85% efficiency vs 55% is quite a leap but you still have to radiate that 15% .
    Conversion losses in a boost converter. More heat, more current drain, more complexity. 50-60 volts does have advantages in input output matching, four times the voltage = one fourth the current, but still see rule #1.

    thank you for playing along at home...
     
    Shadetree Mechanic likes this.
  8. kopcicle

    kopcicle Sr. Member

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    dhli-page-001.jpg
    heh heh heh
     
    Shadetree Mechanic likes this.
  9. TheRealPorkchop

    TheRealPorkchop Certified Sith Pimp

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    51B6EE76-24AB-458D-B5F2-8F8210B2D9BD.gif

    What are we excited about?
     
  10. kopcicle

    kopcicle Sr. Member

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    [​IMG]
     
    Shadetree Mechanic likes this.
  11. Bandit1

    Bandit1 Active Member

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    Channel display? Lcd screen?
     
  12. kopcicle

    kopcicle Sr. Member

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    [​IMG]
     
  13. TheRealPorkchop

    TheRealPorkchop Certified Sith Pimp

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    That looks most impressive Lord Kop, most impressive.
     
    Bandit1 likes this.
  14. kopcicle

    kopcicle Sr. Member

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    19 Forwarded for delivery SEATTLE, WA - USA 08:52
    1 Piece

    18 Arrived at Delivery Facility in SEATTLE - USA SEATTLE, WA - USA 06:39
    1 Piece

    17 Arrived at Sort Facility SEATTLE - USA SEATTLE, WA - USA 06:15
    1 Piece
     
    357magnum likes this.

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