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  1. sp5it

    STRYKER SR-955HP very, very, very low power

    On TX, with RF probe measure voltages on input and output of following transistors. Based on that schematic https://www.worldwidedx.com/cbt/radios/stryker/sr_955hpc/graphics/Schematics.pdf Q49 B= C= Q25 G= D= Q45 G= D= Q46 G= D= Mike
  2. sp5it

    STRYKER SR-955HP very, very, very low power

    Grab RF probe and search where power disappear.
  3. sp5it

    Ranger 2970N3 Diode information

    1N4148
  4. sp5it

    Why does ssb not utilize an anl circuit?

    ANL just clips noise peaks. Need steady (more or less) signal for that.
  5. sp5it

    New President Washington Mobile Radio?

    481 euros for chickenbander. LMAO
  6. sp5it

    RCI 2980 EPT360014B ISSUES

    VR16 is connected to RF power knob on front. Is it adjusting power? Check voltage table from here: https://www.bensons-funktechnik.de/downloads//%20Schaltbilder%20Service%20Manuals/RCI_Ranger/ETP360014B/ Maybe will fit. Mike
  7. sp5it

    I need help with shipping from US

    Hello. I need 6.5$ spare part from https://www.zebralight.com/ but they ship only to US. I need someone willing to help I could order that to his address, than he could send it to Poland cheapest way in bubble envelope. Expenses on me. Anyone? Mike
  8. sp5it

    Good am fm ssb mobile ham rig ..

    Sure, I don't. https://www.worldwidedx.com/threads/icom-ic-706mkiig-am-receive-modification.113814/
  9. sp5it

    Good am fm ssb mobile ham rig ..

    706 works on AM only with optional filter. Otherwise it's garbage tx/rx If output power is not an issue get IC-705
  10. sp5it

    New Galaxy DX2547 Radios Produce Buzzing Sound

    That is radio side. How about wall socket? Is it 3 or 2 wire? N and PE bridged or separate? In most cases SWPS is noisy when no proper grounding. Mike
  11. sp5it

    RCI 2980 EPT360014B 3 problems

    Yes it will be on freq, but leaking carrier. Other failure causing that can be parasitic oscillation of predriver/driver/PA Mike
  12. sp5it

    New Galaxy DX2547 Radios Produce Buzzing Sound

    Internal PS connected to L+N+PE line?
  13. sp5it

    RCI 2980 EPT360014B 3 problems

    Or leaking crystal filter.
  14. sp5it

    Mast Material / Metal ?

    It is enough to insulate antenna from mast. Mike
  15. sp5it

    VOX features on 11 meter

    There are VOX equipped radios on sale. Dunno how it works. Mike
  16. sp5it

    2980 WX Replacement Finals

    Those transistors are not produced since ages. Only reliable source is another radio or Eleflow. Mike
  17. sp5it

    Major Solar Storm hitting Earth!!!

    Aurora in south Poland was insane. It is very rare to see that at 51°N. I was lucky to have camera with me.
  18. sp5it

    300 DXCC confirmed. Finally

    Congratulations. Now it's a time for 5B300DXCC. Mike
  19. sp5it

    Rm Italy low pass filter works

    That's not how the lowpass filter work and is designed for :) I would check filter resistance and insertion loss since your SWR has changed. Mike
  20. sp5it

    Our Friend Marconi

    Will be missed. RIP Marconi.
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