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Upgrading first stage as I’m buying a computer w transmitter

Discussion in 'Computers, Gauges, Watches and Analyzers' started by Monbit, Aug 10, 2019.

  1. Monbit

    Monbit Angel Fish

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    hi guys

    I’m buying a dive computer w transmitter. But my first stage doesn’t have enough ports.

    Can I just buy any first stage w more ports from online and use that? Or do I need to carefully match make model etc etc ??
     
  2. tursiops

    tursiops Marine Scientist and Master Instructor ScubaBoard Supporter

    # of Dives: 2,500 - 4,999
    Location: U.S. East Coast
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    Lots of choices here.
    1. use the first stage you have, but in two different ways:
    (a) use just the transmitter with no SPG
    (b) add on a port expander that allows two HP devices to be attached to just one port, for example High Pressure
    2. get any new first stage that has two HP ports.

    The only "matching" to be aware of is that the IP delivered by the first stage matches the IP expected by your second stages. this may require some minor tuning.
     
  3. JackD342

    JackD342 Dive Shop

    # of Dives: 500 - 999
    Location: Highland Park, IL
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    First, you can simply add an HP port splitter to your existing 1st stage.

    If getting a new one anyway, you will facilitate servicing if you match brands, There may also be some other considerations such as balanced/unbalanced/over balanced, cold water use, etc. that require more specific info from you to answer.
     
  4. tursiops

    tursiops Marine Scientist and Master Instructor ScubaBoard Supporter

    # of Dives: 2,500 - 4,999
    Location: U.S. East Coast
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    Good points!
     
  5. Monbit

    Monbit Angel Fish

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    Thanks guys. Good points.
     
  6. rongoodman

    rongoodman ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: Albany, NY
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    Just replace the SPG with the transmitter and toss it into your save-a-dive kit.
     
    buddhasummer and stuartv like this.
  7. JackD342

    JackD342 Dive Shop

    # of Dives: 500 - 999
    Location: Highland Park, IL
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    1,511
    113
  8. stuartv

    stuartv Seeking the Light ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: Manassas, VA
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    ^What he said.
     

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