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Recent content by codecxbox

  1. codecxbox

    Easy Digi to HR2510

    my bad..sorry
  2. codecxbox

    Easy Digi to HR2510

    Nomad, heres what I have..
  3. codecxbox

    Digi Easy no ptt problem

    Yay! I managed to TX digital with the 2510! I had to use a 3.9k ohm resistor between the mic TX pin and the Easy Digi, cuz without it the Digi would not release PTT..I tried your suggestion with the NPN to the Radio Shack but it didnt work..Im guessing that the base needs ground, but where to...
  4. codecxbox

    Digi Easy no ptt problem

    Its seems the opto cant drive the TRC relay.. I rigged the Easy Digi to a HTX-10 and it PTTs just fine..but I cant use this HTX because the receive audio goes to the mic switch to common ground and the Digi does not provide this kind of loop..I will try with a HR-2600, as it doesnt pass audio...
  5. codecxbox

    Digi Easy no ptt problem

    PTT through mic plug goes to a TRC-449..on receive, theres 11 volts between pin 4 and 5 from the opto..when I key, voltage drops to 7.5..but I would expect 0 volts, since the opto is supposed to short the TX mic pin to the mic ground..I can short 4 and 5 with a wire and get PTT, no problem..its...
  6. codecxbox

    Digi Easy no ptt problem

    shows 1.1 volts keyed and 0.25 unkeyed..mic plug is not plugged.. can a transistor be driven with the DTR output (5v)?
  7. codecxbox

    Digi Easy no ptt problem

    Hi guys! the 2510 ssb is working great, was overgained..thks.. Now got this problem..no PTT from a Easy Digi board..serial usb cable is fine, sends 5 volts to the board everyday..but the PTT is not working..I see 2.3k ohms between PTT and PTT ground when I press Test PTT..the mic TX pin shows 6...
  8. codecxbox

    HR-2510 bad ssb output audio

    thks Nomad..Sp5, as soon I get home, Ill measure it up..
  9. codecxbox

    HR-2510 bad ssb output audio

    Hi! long time no see lol.. got a nice 2510 pretty cheap..monitoring on another radio,AM tx sounds perfect...but SSB is like clipping real bad and my dmm at current mode is showing crazy draws at SSB with a 1khz signal.. MRF 477 is going, right?
  10. codecxbox

    ideas for a DIY signal generator for radio alignments?

    I stongly suggest you to get a cheap TinySA..around $50..its great and youll use it a lot!
  11. codecxbox

    ideas for a DIY signal generator for radio alignments?

    just leave the SDR on AM..add or sub 1.5khz..the SDR should detect a bit of carrier even if its SSB..
  12. codecxbox

    If you got RX issues with a 858 chassis..

    I have 2 TRC-449 that had the same issue..very weak RX..you can stick whatever you got osci, generator, whatever and its a bitch to trace back.. These had that typical scratchy RX that triggers me its a filter problem.. And that was it was! C10, a ceramic cap besides T3, was split open..This cap...
  13. codecxbox

    HR2510 Receive problem I can not find.

    Im glad you got this! 73!
  14. codecxbox

    Eleflow? El - I dontknow!

    This is the same dilema that the M0nka project has..it relies on very specialized Mitubishi mosfets and they are getting scarce..Ive been proposing them to consider to propose a procedure to replace those with generic IRF520..