Linear for Mobile Unit

Discussion in 'CB Radio Forum' started by HotRodConner12, Feb 3, 2017.

  1. HotRodConner12

    HotRodConner12 Bobtail Member

    18
    15
    Jan 3, 2017
    NW Georgia
    0
    Hello all, before i start this discussion i'd like to let everyone know that i know linears are illegal in the CB band range. I understand linears aren't needed for communication. But this is my radio set up so ill do as i please with it. I am here for some advice! Thanks in advance:D

    I am looking to add a linear to my mobile unit in my daily driver. (89 ranger)
    I am running RG8X coax, with a 5' firestik. SWR of 1.1 on Chan.1 and 1.3-1.4 on channel 40. I am looking at a Texas star 350HDV. Somewhere between 200-300 watts! The radio i am running currently is a Galaxy DX44V. It deadkeys between 1-10 watts(adjustable) and swings to around 40 watts max. I have a barefoot Cobra 29 that im willing to put in place of the 44V if it would be a better combination with this linear. I am not 100% sure on how to work a linear, the buttons and their knobs, etc. I have read that linears have a certain max watt input(3-5 watt deadkey) with a max input of 20 watts. If someone could clarify this, (max inputs) (high-drive)(pre-amp) it would be much appreciated! I also have a galaxy DX919 that i could use for this combo if it would be better suited (power wise) for the amp!

    I have also heard that high power linears in mobile units would sometimes fry your vehicles computer and other electronics... Anybody ever heard of this? I'm pretty sure 250-350 watt linear wouldn't do this type of damage but possibly 500 watts+? Anybody know?
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. rabbiporkchop

    rabbiporkchop Road Train Member

    9,681
    6,537
    Feb 9, 2012
    Wapwallopen, Pa
    0
    I wouldn't recommend anything smaller than this.
    250 watts out with 4 watts in.
    500 watts out with 10 watts in.
    4-2SC2879 transistors
    class AB1
    http://www.copper.com/cart/Texas-Star-DX-500V-Mobile
    [​IMG]
     
    Last edited: Feb 3, 2017
    Reason for edit: 10 typo
  4. HotRodConner12

    HotRodConner12 Bobtail Member

    18
    15
    Jan 3, 2017
    NW Georgia
    0
    So you don't think the 500V would damage electronics in a truck? Or draw too much current?
     
  5. rabbiporkchop

    rabbiporkchop Road Train Member

    9,681
    6,537
    Feb 9, 2012
    Wapwallopen, Pa
    0
    Nope
     
    HotRodConner12 Thanks this.
  6. HotRodConner12

    HotRodConner12 Bobtail Member

    18
    15
    Jan 3, 2017
    NW Georgia
    0
    Would RG8X coax (21ft) handle this amount of power with no problems?
     
  7. rabbiporkchop

    rabbiporkchop Road Train Member

    9,681
    6,537
    Feb 9, 2012
    Wapwallopen, Pa
    0
    I don't see why not
     
    HotRodConner12 Thanks this.
  8. wolverine11

    wolverine11 Road Train Member

    1,629
    1,234
    Apr 1, 2015
    0
    You will first have to check how many amps is the stock alternator and determine how much power you can run in that vehicle. If the stock alternator is 65 amps and the cb amp draws 40 to 45 amps, that only leaves 20 amps to run the other electronics in your vehicle, in that case you will either have to choose a smaller amp or upgrade to a larger alternator. Generally a good rule of thumb is 10 amps per 100 watts so a 500 watt amp will require close to 50 amps. In my 2005 Ford F150 ( 110 amp alternator) I ran a palomar 225 for years, on high it would pep at 180 watts and draw about 15 to 20 amps and I never had a problem with it as far as damaging any electronics in truck. The most recent amp I used was a Palomar 450 LD Fet which has 5 Mosfets , and would peak around 300 watts and have a amp draw of around 25, hope this helps.
     
    rabbiporkchop and HotRodConner12 Thank this.
  9. shogun

    shogun Road Train Member

    6,075
    72,161
    Jan 23, 2009
    Doing a regen
    0
    If you are pushing 40'watts I would go with the 500 also or a comparable class C box. 40 watts will burn up the variable in that 350. I've run a general lee doing 45 watts into a two pill fat boy and burnt the variable up twice. That same radio drives my straight 4 pill nicely and I can get my name called talking skip whenever I want in my daycab Volvo. Just make sure the electrical system can handle the draw.
     
    wolverine11 and HotRodConner12 Thank this.
  10. bored silly

    bored silly Road Train Member

    2,714
    656
    Jul 1, 2016
    0
    Make sure you know the amp draw of the linear as was mentioned by someone else.... use welding cable and the right gauge thickness needed....ground everything and then do some more grounding
     
    HotRodConner12 Thanks this.
  11. bored silly

    bored silly Road Train Member

    2,714
    656
    Jul 1, 2016
    0
    As long as it's set up absolutely correct... freightliner cascadia trucks have been known to fry the ecm.....even with a 400 watt kicker !!! Proper gauge wire and coax and many other things come into play with more power....
     
    HotRodConner12 Thanks this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.