1. You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
    Dismiss Notice

Connex 3300 HP Variable Carrier?

Discussion in 'CB Radio Modifications' started by mattsowders1989, Aug 31, 2018.

  1. mattsowders1989

    Joined:
    Jan 18, 2017
    Messages:
    68
    Likes Received:
    9
    I'm trying to figure out how to put variable carrier in this radio. i cant seem to find much info on the net. any help would be greatly appreciated..


     

  2. loosecannon

    loosecannon Sr. Member

    Joined:
    Mar 9, 2006
    Messages:
    3,081
    Likes Received:
    1,345
    Vr13 for high power.
    Vr16 for low power.

    Use a dual pot if you want to move both out to the outside of the radio.
    LC
     
    Dmans likes this.
  3. mattsowders1989

    Joined:
    Jan 18, 2017
    Messages:
    68
    Likes Received:
    9
    Cool thanks! now is that just carrier or is that over all power? im just wanting to change carrier
     
  4. loosecannon

    loosecannon Sr. Member

    Joined:
    Mar 9, 2006
    Messages:
    3,081
    Likes Received:
    1,345
    it's just the carrier level controls.
    LC
     
  5. nomadradio

    nomadradio Analog Retentive

    Joined:
    Apr 3, 2005
    Messages:
    1,911
    Likes Received:
    1,338
    If your radio has only two wires going to the High/Low switch, you can just take them loose from the switch and connect one wire to the center lug and one to the end lug of a 5k pot.

    If the control works in reverse, with high power at the left end, just move the wire from one end lug to the other one.

    The original High and Low trimpots should let you set max and min power.

    73
     
    Dmans likes this.
  6. Handy Andy

    Handy Andy Do Your Research First, Then Decide...

    Joined:
    Apr 23, 2018
    Messages:
    1,384
    Likes Received:
    1,032
    There's the rub, when you reduce carrier - Audio power really climbs.

    So they made AM power (VR13 - Carrier) and VR 16 - Audio Envelope - work together to kinda keep themselves on an even Keel.

    Once you lower Carrier (AM power) the ability to control the envelope is less - so VR 16 is like a trimmer to handle the Dynamic Range issue the Low to High Power curve presents to the limiter.

    What I like is the "dual gang" pots you'd see on Balance controls from old stereos - that gives you the most flexibility of envelope to carrier limits so you don't go "dual sideband - no carrier" at least not without forcing yourself to do so thru those controls. They turn together as a unit and you can hold one to turn the other to make the effect more or less pronounced.
     
    Dmans likes this.

Share This Page

  • About Us

    The WorldwideDX Radio Forum was originally established in 2001. We pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. We are working every day to make sure our community is the best Radio Hobbyist's site.
  • Like us on Facebook

  • Premium VIP Member

    The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles. Care to buy us a beer? We'd really appreciate it!

    Donate to us!