HP hose length for transmitter

[LI-er]

Most RIB diving in the U.K. involves removing kit in water where the cox/crew take it onboard, then you climb in over the tubes. There isn’t the time to ‘look’ for a lifting handle, kit is grabbed by whatever is handy and dragged in.

You said most of the diving in the UK is done this way, with the crew hoisting the gear over the side of the inflatable. It would naturally follow that the crews that do this see their fair share of first stage mounted transmitters and don't grab the rig in such a way as to damage it. It's not like divers who regularly splash off of zodiacs are replacing their transmitters on a regular basis.

In fact I can't recall one single incident either witnessed by me personally or having read about, where a first stage mounted transmitter was damaged by a crew person improperly handling it.

It probably happens about as often as oxygen toxicity does to a single tank recreational diver when setting a computer for 1.6. Which is never, from what I've seen and read.

 

[Capt Jim Wyatt]

Carefully consider whether or not you REALLY need the transmitter to be on a hose or not. If there is a HP port you can use that causes the xmitter to point down and prevents it from striking the overhead, or other things then I suggest not using the hose. The hose is simply adding another failure point.

 

[Edward3c]

You said most of the diving in the UK is done this way, with the crew hoisting the gear over the side of the inflatable. It would naturally follow that the crews that do this see their fair share of first stage mounted transmitters and don't grab the rig in such a way as to damage it. It's not like divers who regularly splash off of zodiacs are replacing their transmitters on a regular basis.

In fact I can't recall one single incident either witnessed by me personally or having read about, where a first stage mounted transmitter was damaged by a crew person improperly handling it.

It probably happens about as often as oxygen toxicity does to a single tank recreational diver when setting a computer for 1.6. Which is never, from what I've seen and read.

You've misquoted me, I said RIB diving. Which is mainly done in the UK by clubs not commercial operators who tend to operate hard boats (which mainly have lifts). Its your fellow divers who are most likely to 'grab' your kit, not professional crew.

And yes I have seen transmitters damaged. Either the outer case or the base cracked flooding the unit.

 

[rhwestfall]

I go over my shoulder, and through my chest D-ring (also with a splitter block and a button SPG). I've been using the HP QD fittings Randy (Piranha Manufacturing) sells. Non locking, but I've had no problems. It isn't like your LPI suddenly disconnects, why would a transmitter? I do have a stash of the SP QD fittings from years ago. I use them for my wife's console (Peregrine).

 

[Scared Silly]

I would like to put my AI transmitter on a hose over my right shoulder, clipped onto a right shoulder strap d-ring. What length hose do you think I would need? I don't own a tank, so that I could just measure it myself.

If you want this measurement why not just take your kit down to your local shop, place it on a cylinder and make the measurement? Then there is no guessing by yourself or 10 other people.

That said does your regulator have a right side HP port? Also you may want to read this thread (note the discussion about needing to use a HP spool). But here are the highlights.

1. While unlikely, transmitters have been damaged because they were inadvertently used as a handle.
2. A HP spool is needed when attaching the transmitter to the hose or quick disconnect.
3. The hose length and location is a diver preference - there is no right or wrong location.
4. Some divers also use a HP quick disconnect.
5. The chances of a HP o-ring failure is slim. That is, adding a HP hose and quick disconnect is not a failure point to be overly concerned about.

 

[lexvil]

Try a 40” hose, run it down the side of the tank, up between your legs and clip it off to your crotch strap D ring where it will be nice and safe.

 

[DivingSD]

I previously ran my transmitter on a hose over the shoulder to my harness in an attempt to eliminate the occasional lost signal for a few seconds. The HP hose eventually started leaking which almost made me scrap a dive, and I found that it didn't help much with the signal anyway. It's also one more thing to route every setup. I'm much happier with the transmitter directly on the 1st stage and just watch my gear as close as I can.

 

[LI-er]

Try a 40” hose, run it down the side of the tank, up between your legs and clip it off to your crotch strap D ring where it will be nice and safe.

Or for the best possible signal, run it the same way you suggested but continue up to your arm, over to your wrist and clip it off to your dive computer

 

[lexvil]

Or for the best possible signal, run it the same way you suggested but continue up to your arm, over to your wrist and clip it off to your dive computer

Team work!

 

[InWay2Deep]

36", with a bolt snap clipped off at your waist, make sure to unclip it a few times and look at it during the dive to make GUE divers happy.