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Recent content by sp5it

  1. sp5it

    scu-17

    SCU have nothing to do with SWR. Check your antenna system
  2. sp5it

    Favorite QRP rigs

    My first and only QRP rig: IC-705. Brilliant technology. Only thing that annoys me is connecting speakerphone. Why no regular mic socket? Mike
  3. sp5it

    Trip Down Memory Lane

    Very good SSB filter they had installed. Much narrower, than in chickerbanders.
  4. sp5it

    Why do governments do dumb things ?

    Another step to implement the digital passport (ID) 1984 was not SF, but prophecy. Mike
  5. sp5it

    Imax 2000 with ground plane kit VS Maco 5/8, what is your experience?

    I use blue plastic pipe used for water plumbing. Cut it lengthwise. Mike
  6. sp5it

    How about it?

    Celcius
  7. sp5it

    How about it?

    I have -13 to -18 overnight since two weeks here :) -8 or 10 during day. Want trade? Mike
  8. sp5it

    Imax 2000 with ground plane kit VS Maco 5/8, what is your experience?

    Vertical endfed antenna compared to GP always lose. Imax, Antron were explained, modelled and so on, there nothing more to add. In Maco I would add more radials, since it is current fed antenna with maximum current at the bottom. It will improve it's performance. Of course antenna should me...
  9. sp5it

    nanoVNA - first scan, IMAX2000

    That proves only how good was propagation at the time. Nothing else. Mike
  10. sp5it

    Dc Grounded antenna question

    So coax is part of the antenna. On RX and TX. It is possible, that antenna is not picking the noise, but coax is. Another thing is proximity of the antenna to metallic objects, the way the coax goes and so on. Some reading: https://www.w8ji.com/common-mode_noise.htm...
  11. sp5it

    Dc Grounded antenna question

    Dipole is horizontal or vertical? Witch 1:1 balun, choke? Mike
  12. sp5it

    nanoVNA - first scan, IMAX2000

    Nice dummy load.
  13. sp5it

    Unknown radio identity

    Pearce-Simpson Super Cheetah I had dozen of them on the bench. That service manual should help. Mike
  14. sp5it

    CRT Hercule display board

    Continue here https://www.worldwidedx.com/threads/crt-hercule-turbo-no-modulation.270827/#post-868155
  15. sp5it

    CRT Hercule display board

    He is asking about that in 4-5 threads. Already responded on one of them