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Recent content by sp5it

  1. sp5it

    President Lincoln 2+ AM/FM no Modulation

    Use AF signal generator and scope and trace it from mic socket backwards. You'll find it within minutes. My bet is cold solder joint at the mic socket or (and) cracked copper foil. Use DMM to check continuity. Mike
  2. sp5it

    This may be dumb..... (?? why do CB ops use LSB most of the time ??)

    LSB, really? 99.99% traffic here is on USB :) Mike
  3. sp5it

    Stryker sr655 v2 NPC modification

    Without schematic v2 I can't help, sorry. Mike
  4. sp5it

    Stryker sr655 v2 NPC modification

    I doubt they changed that part of circuit in v2. So mod from regular 655 will work. Mike
  5. sp5it

    Coax connector extension availability ????

    Get male and female UC1 and make a pigtail as long as you need.
  6. sp5it

    kenwood tl 922a

    Hard to get nowadays. https://www.iw1pur.com/Download/TL922eng.pdf
  7. sp5it

    NPC RC modification mod

    Looks like that
  8. sp5it

    Bias Is Really Just B(ia)S

    If all is adjusted properly there is nothing to monitor. Mike
  9. sp5it

    Realistic Trc-456 reducing power output or variable dead key mod?

    Post schematic, I will show you how to do that.
  10. sp5it

    SWR before linear

    Rebuilding amp? That Texas Star you have was designed by complete idiot with zero RF circuits knowledge. Get better amp and get rid of that crap. Mike
  11. sp5it

    SWR before linear

    So it is shitty amp with bad tuned input circuit. Output probably too. Junk amp. Mike
  12. sp5it

    SWR before linear

    SWR rise when amp is ON or OFF?
  13. sp5it

    testing 10m antennas with repeatable results

    To test RX put small signal generator a kilometer away or so. (TinySA) To test TX use field strength meter, TinySA or similar. Mike
  14. sp5it

    scu-17

    SCU have nothing to do with SWR. Check your antenna system
  15. 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
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