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

Texas star 1200 or 1600

Discussion in 'General CB Services Discussion' started by dxing440, Mar 27, 2012.

  1. dxing440

    dxing440 Active Member

    Joined:
    Apr 10, 2011
    Messages:
    161
    Likes Received:
    10
    3 PART QUESTION USING....
    Omegaforce radio,(w/rfx75) has a variable of 1-18w dk, and 0-104w pep!
    Usually set at 1.5W dk swingin 40W pep

    1.. Which would be the better amp for the radio, 1200 or 1600? My vehicle is Cummins Diesel with 130 amp alt, so already have 2 batts.



    2... How would the amp be connected to the batter(ies)

    3... What would be the DK watts, and PEP watts, for each amp.
     

  2. rabbiporkchop

    rabbiporkchop Sr. Member

    Joined:
    Jan 18, 2007
    Messages:
    1,817
    Likes Received:
    668
    If you had an am radio instead of a suppressed carrier double sideband radio, for the dx1200 you would want 8 watts carrier input and 32 watts pep for an output of 120 watts carrier, and 480 watts pep.
    for the dx1600 you would need 20 watts carrier, 80 watts pep, for an output of 200 watts carrier, and 800 watts pep. It would still need to be put on a scope and cleaned up though, because Texas Star doesn't use beta-matched transistors and the IMD they produce from the factory is pretty substantial unlless you add lots of caps to filter the IMD.
     
    1 person likes this.
  3. dxing440

    dxing440 Active Member

    Joined:
    Apr 10, 2011
    Messages:
    161
    Likes Received:
    10
    If you had an am radio instead of a suppressed carrier double sideband radio,

    The radio as far as i know, IS a single side band radio.
    And why the watts so low for a 1200 (480)? I get that from a dx500v.
    This radio will DK and swing the numbers you mentioned.
     
  4. Eastside

    Eastside Well-Known Member

    Joined:
    Apr 29, 2011
    Messages:
    1,730
    Likes Received:
    131
    8 pills will do more than 480. :)
     
  5. 555

    555 Active Member

    Joined:
    Mar 17, 2006
    Messages:
    424
    Likes Received:
    17
    well bring that 1200 and the 16 and put it on the bird meter
    and i will even be nice enough to use the 1000 watt slug
    even though neither amp will have enough get up and go to even get the needle up 3/4 of the way

    next person will say
    well hey my 667 does 1000 watts
    and i say hey i let you use my 500 watt slug and the needle will struggle to make it to 400
     
    Limeybastard likes this.
  6. Mudfoot

    Mudfoot Sr. Member

    Joined:
    Jun 17, 2009
    Messages:
    9,437
    Likes Received:
    4,020
    Your bursting the guy's bubble.
     
    1 person likes this.
  7. wavrider

    wavrider W9WDX Amateur Radio Club Member

    Joined:
    Jun 2, 2009
    Messages:
    3,308
    Likes Received:
    1,115
    Texas star 1200
    Eight 2sc2290, Max output per transistor if ran in accordance with manufactures specs is 80 watts out with four watts drive
    8x80=640 watts output.

    Texas star1600, eight 2sc2879 if ran in accordance with manufactures specs has 120 watts output per transistor with 7 watts of drive.
    120X8=960watts output with 56 watts of drive.

    Keep in mind the Texas Starr 1600 will need around 160 AMPS to produce this much output.

    The op on the receive end will never know the difference between either amplifier based on output.

    Heck for that matter the DX500 will be almost as loud as the DX1600 as you have to increase your output by four times to increase your signal by one S unit.

    Here are the specs for the transistors.

    Transistor Specifications at RF Parts Company

    Anything else you may see on the watt meter is just harmonics caused by over drive etc etc.

    Now you may increase the voltage and thus increase the output of the amplifiers, but then again no one will ever be able to hear the difference on the receive side.

    Companies and techs stay in business by the ops that overdrive the piss out of their amps, splatter the frequencies just so they can look at a watt meter swing.
     
    2 people like this.
  8. dxing440

    dxing440 Active Member

    Joined:
    Apr 10, 2011
    Messages:
    161
    Likes Received:
    10
    Wavrider that makes good sense. That's what I was coming up with, but wanted to double check. How would the 12 or 16 need to be connected to the batts?
     
  9. wavrider

    wavrider W9WDX Amateur Radio Club Member

    Joined:
    Jun 2, 2009
    Messages:
    3,308
    Likes Received:
    1,115
    I am not to knowledgeable on mobile set ups. Hopefully others will post answers to this question.

    I do have some friends in FL that run big SS amps and they go to the welding supply distributors and make their power cables from welding lead cables. They say it works well and conducts the amperage they need. They compete in shootouts and keydowns, also they build their own amps.

    Keep in mind that the mobile antenna will limit your receive, so going with that big an amp is way overkill and IMO a waste of $$$.

    The Texas Star 500 will allow you to talk further than you can hear with the mobile setup.

    Correction in previos post, the TS 1200 needs 32 watts of drive to make full output, 4 watts each transistor.

    Each to their own(y)
     
    2 people like this.
  10. AudioShockwav

    AudioShockwav Extraterrestrial Admin
    Staff Member

    Joined:
    Apr 6, 2005
    Messages:
    5,802
    Likes Received:
    1,814
    I really , really believe that the T/S 500 ( or comparable 4 "pill" ) is a great Amp to run in a Mobile.
    It is about as easy as it get`s for a plug and play set-up.
    Plug and play as in a single hi output alt, factory batt and good cable to the amp like 6 gauge.
    Waverider is correct in what he has said about going any bigger, you must increase your power output 4x to really see a difference on the other end, and the first bump that you do is the biggest increase that has a difference.


    If you really want to go that big, because of the radio that you are running, IF you decide to go with a Texas star, I would chose the 1600, use 2 gauge wire and a 160 fuse at the battery.
    Another good place to get cables, fuses and connectors is go to a place that sales and services forklifts, talk to the guy at the parts counter and tell him what you want to do, they deal with large capacity cables, fuses and connectors all the time because a lot of warehouses use electric forklifts.
    You should see about 900 watts as has already been said.
    I ran a sweet sixteen years ago and I never asked it to do more than that and it still worked good when I sold it.
    You can drive it harder, and see bigger numbers, but if you want it to be reliable don`t do it.
    Another Amp you should look at is the TnT 1500 amp built by the X force guys, you are going to pay about $700 bucks for the 16 and you must add fans to it if you want it to live very long.
    The 1500 has B bias for SSB, and the case is built for better cooling because it forces the air across the heat sink and it has a fan already.
    It will easily handle the full output of your radio.

    73
    Jeff
     
    4 people like this.
  11. gamegetter

    gamegetter Well-Known Member

    Joined:
    Aug 25, 2010
    Messages:
    1,536
    Likes Received:
    217
    the four pill could probably also be run on the mag mount wilson 5k provided that you have a good rf ground, ie bonding of hood, trunk, & doors and proper grounding of body to frame...the 4 pill would prolly be the biggest amp i would try running on the mag mount, after that hard mount. ymmv...in other words each install may present it's unique challenge and you may have to hard mount for a 4 pill.

    i like the xforce tnt1500. You have the extra battery to run it. but as already mentioned it likely will not make a great difference over the 4 pill.
     
  12. dxing440

    dxing440 Active Member

    Joined:
    Apr 10, 2011
    Messages:
    161
    Likes Received:
    10
    Thx for the info. I think ill stick with my dx500v,Im having hard enuf time with swr's now.
    And if the other 2 dont do 1200 or 1600 watts, it is, a waste of money. I do
    keep the radio @2.5dk and 30w pep and the 500 does fine.
     
  13. n0zna

    n0zna Digital master

    Joined:
    Nov 3, 2008
    Messages:
    1,256
    Likes Received:
    158
    They all all right,it takes double the watts to get one s unit...the tx500 is good..old work horse.The 1200 and 1600 will be good also,but when you run that much mbl you are asking for problems,swr coax...you run to much you have to go to hard line,not coax...73 de JW
     
    Oatmeal likes this.
  14. rabbiporkchop

    rabbiporkchop Sr. Member

    Joined:
    Jan 18, 2007
    Messages:
    1,817
    Likes Received:
    668
    According to Toshiba the 2sc2290 is a 60 watt transistor without harmonics. I'm sure lots of people see 200 watts out of a 2290 with 10 percent of that power on the fundamental frequency.
     
    1 person likes this.
  15. 9C1Driver

    9C1Driver Sr. Member

    Joined:
    Aug 13, 2008
    Messages:
    3,193
    Likes Received:
    913
    If your Bird meter has the peak reading kit then a Sweet 16 will peg that 1000 watt slug when driven with 100 watts PEP. Your right if your Bird is a standard Bird.
     

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!