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Transmitters on Short Hoses?

Discussion in 'Sidemount Diving' started by bradymsu, Apr 13, 2021.

  1. bradymsu

    bradymsu ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Grand Rapids, Michigan, USA
    263
    100
    Agreed on pretty much every point you've made. My question was specifically about transmitters on hoses vs. a direct connection. Using transmitters only or SPGs only both make sense to me. Adding SPGs as a "redundancy" to transmitters or putting button gauges on the first stage is a bad practice I'll avoid. To my original question, I sounds like the answer is to directly connect the transmitter to the first stage if the first stage has a HP port that sticks straight down so the transmitter doesn't stick out too far and if the tank neck allows for it. Otherwise, put the transmitter on a hose long enough to secure the transmitter under the top tank band.

    Steve Davis covers the transmitter issue in a YouTube video here:
     
  2. JimBlay

    JimBlay Divin' Papaw ScubaBoard Supporter

    # of Dives: 500 - 999
    Location: South Florida
    1,610
    2,797
    Certainly use just one option (SPG or Transmitter) if you wish but calling it a "bad practice"? That's a bit of a stretch. Based upon what? How is it "bad"?

    Also most people who dive both do not "add" an SPG as redundancy. They had one all along. It is the transmitter that has been added. At least that's how my diving evolved.

    Certainly dive as you wish. I really couldn't care less. But calling it a bad practice to have redundancy to your transmitter is a bit much.

    EDIT: Perhaps the "bad practice" applies to sidemount? If so that may be so. I'm not a sidemount diver and I know next to nothing about sidemount. I'm referring to backmount diving be it singles or doubles. That may be off track from your question. If so feel free to ignore my comments.
     
  3. bradymsu

    bradymsu ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Grand Rapids, Michigan, USA
    263
    100
    This is the sidemount forum.
     
  4. JimBlay

    JimBlay Divin' Papaw ScubaBoard Supporter

    # of Dives: 500 - 999
    Location: South Florida
    1,610
    2,797
    Yea, I get that. But your question about transmitter redundancy seemed to be to be broader than just sidemount. But I see that you are approaching it quite narrowly. Given that I'm out.
     
  5. DogDiver

    DogDiver Contributor

    # of Dives: 5,000 - ∞
    Location: Branford, Florida
    858
    694
    If you noticed the stainless steel hoses are on a bungee and their location is on the top. In cave diving an SPG is mandatory . My regs sit against my chest for protection from cave walls and rocks. If the $hit hits the fan, I can always change out the regulator underwater using my deco or stage bottle regs.
     
  6. RayfromTX

    RayfromTX Student Of Gas Mixology Staff Member ScubaBoard Sponsor

    # of Dives: 200 - 499
    Location: Cozumel while the cruise ships are gone
    8,165
    8,214
    I directly mount mine to the first stage and on my aluminum tanks I have to rotate the first stage a bit so the transmitter clears the tank and just a bit more for clearance. Hose routing is still fine with this slight rotation and my rotating turret first stages.
     
    bradymsu likes this.
  7. halocline

    halocline Solo Diver

    8,947
    3,311
    Wasn't this a thread about whether to mount the transmitters directly on the first stages in sidemount? It that's the case, then the answer is yes. At least that's what I've seen all the cool kids with perdix ai computers do. Me, I'm still in the stone age with a non-ai petrel, so I use SPGs.
     
  8. Paul M

    Paul M Contributor

    # of Dives: 200 - 499
    Location: Waterloo, ON
    185
    159
    I have had my 2 transmitters connected to first stages for a few years.
    I recently took up cave diving where, as you all know, redundancy is key. I felt adding a couple spgs would provide a little extra peace of mind.
    I have never had a transmitter signal issue but these issues aren't exactly planned either. In the event that a transmitter ever does fail, it would be comforting for me (and for my buddy) to know what WE have left in the tank as we exit the dive.
    upload_2021-5-3_13-5-13.png
    ...thanks to lockdowns I am currently at 23 days since getting wet and it's driving me nuts. :(
     
  9. RayfromTX

    RayfromTX Student Of Gas Mixology Staff Member ScubaBoard Sponsor

    # of Dives: 200 - 499
    Location: Cozumel while the cruise ships are gone
    8,165
    8,214
    I had button SPGs attached to my first stages for awhile but they wanted to get up into my d ring and were a bummer to get back out. I removed them.
     
  10. Paul M

    Paul M Contributor

    # of Dives: 200 - 499
    Location: Waterloo, ON
    185
    159
    "into my drink"?
     

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