how to build own walkie talkie (cheap walkie talkie)

Discussion in 'Wireless & RF Design' started by real_assassin85, Aug 15, 2007.

  1. real_assassin85

    Thread Starter New Member

    Jul 18, 2007
    8
    0
    helo..anyone can help me.i need a simple walkie tallkie circuit for receiver and transmitter..

    i need circuit diagram.. the component list and the manual..i really appreciate if anyone help me..
     
  2. real_assassin85

    Thread Starter New Member

    Jul 18, 2007
    8
    0
    just a simple walkie talkie maybe range 50meter and 100meter only..
     
  3. HarveyH42

    Active Member

    Jul 22, 2007
    425
    6
    Good luck with that. :) I've seen kid toy walkie-talkies for around $10 for the pair, and most likely better then what you could build yourself for $50 in parts. You are going to need some expensive test equipment to tune and calibrate. What do you consider cheap?
     
  4. GonzoEngineer

    New Member

    Jul 8, 2007
    46
    0
    Wait just a minute here.....your screen name is real assassin, and you want our help for a walkie talkie design?

    I don't think so.............:D:D:D:D

    And just where are you from, and who do you want to assassinate?
     
  5. HarveyH42

    Active Member

    Jul 22, 2007
    425
    6
    I'm guessing young student, northern USA...
     
  6. GonzoEngineer

    New Member

    Jul 8, 2007
    46
    0
    But we never know...do we?

    When I read his spelling and context, I thought he was from another country!
     
  7. real_assassin85

    Thread Starter New Member

    Jul 18, 2007
    8
    0
    :p pls help me if u got the schematic because i want to build it my own.
     
  8. JoeJester

    AAC Fanatic!

    Apr 26, 2005
    3,912
    1,742
  9. jumstar45

    New Member

    Oct 10, 2018
    1
    0
    I would say you go the other way around.
    Borrow a kid's walkie talkie from someone.
    Open it
    Disassemble everything
    Now start building a new from scratch
     
  10. Sensacell

    Moderator

    Jun 19, 2012
    2,016
    632
    It will blow your mind how difficult it would be to build your own.

    We all take common products of yore for granted, but rest assured, it ain't a walk in the park.

    As per post #3, the parts alone will cost far in excess than you would spend for an old pair of perfectly good walkies.
    Not to mention the thousands of hours, pulling your hair out.

    But, what you would learn would be priceless.
    Sadly, few would even care.
     
    atferrari likes this.
  11. Reloadron

    Distinguished Member

    Jan 15, 2015
    3,723
    1,688
    Building a working set of walkie talkies is not a very good beginner project. Just design of the circuit boards alone requires considerable knowledge. This is much like learning to swim in the deep end of the swimming pool. The simplest walkie talkies I remember from my childhood looked like this:
    Can and String.png

    Anything beyond that requires much more than a simple schematic or drawing along with a parts list. The parts placement on the circuit board alone is critical. You also can't have any frequency drift least you drift into unauthorized frequencies depending on where you are, for example country location. You also need to design the circuit board you plan to stuff with components.

    A simple look at Amazon reveals basic children's toys like these for example and there is no way I could design or build just two units for the $16 price. Designing something even as simple as this requires a good working knowledge of RF theory which comes years after the basic fundamentals of electronics. Anyone here would be happy to help you if it were possible but again, it's not that simple.

    Ron
     
  12. atferrari

    AAC Fanatic!

    Jan 6, 2004
    3,059
    1,139
    Hi quality cans, Ron!
    Can and String.png
     
    Reloadron likes this.
  13. oz93666

    Senior Member

    Sep 7, 2010
    230
    50
    We can make a very simple morse code communicator , just a spark gap transmitter and a crystal set receiver, just a half dozen components , this should work over 10s of Km....

    Surely it should be possible to do something similar with voice ?? ( for the moment lets forget about licences and regulations , and interfering with other transmitions)
     
  14. BR-549

    AAC Fanatic!

    Sep 22, 2013
    4,123
    1,090
    Construct and verify diode detector and audio operation for AM band. Battery powered and small whip antenna. i.e modern AM crystal set.

    Construct 1 MHz tunable BFO for diode detector. Verify beat with local AM stations.

    Now construct buffer and power amplifier for BFO. The buffer and amp are for oscillator stability and keying.....not for a lot of power.

    Build and test two units.
     
  15. DickCappels

    Moderator

    Aug 21, 2008
    5,003
    1,517
Loading...