AI Transmitter configuration with bpw question

[Satrekker]

I've always dove with my Perdix AI transmitter attached directly to a high pressure port on the right side of my MK 25 EVO; however, I get aggravated every now and then when my 7' long hose primary hangs on it behind my neck. I've never had an issue with the transmitter connection at all, so I've been thinking about using a 6" hp hose and some bicycle tubing to get it out of the way and secure it to either my bungee'd second hose or my primary hose. My primary is routed out of the bottom of my first stage at an angle to more easily route under arm. Will this be an issue. Also, I figured if I had the transmitter attached to a 6" hp hose, then a person would be less inclined to accidentally lift my rig by the transmitter. Any thoughts or suggestions?

 

[shurite7]

Not sure why you are having an issue. Your LP hoses should not be that close to the HP ports, even when you are diving.

For years I've used a seven foot hose with a transmitter off of my Mk25 with not issues. Do you have the longer hose closest to you and the shorter hose in the port away from you? My short hose, with the alternate hanging around my neck, is on the forward port, one closest to my neck, and the seven foot hose is on the port behind it to prevent tangling plus it allows for ease of routing.

By any chance are you running with the Mk25 facing up or facing down when you place it on the tank valve? If the Mk25 is facing down there should be no interference, but if it is facing up then I can see the issue. Some people place the Mk25 in the up position (in my view upside down) so that it is easier to reach back and grab the LP hoses.

 

[Compressor]

Sartrekker: I've been diving with the Perdix AI since it came out and with the same transmitter on my oceanic computer. Part of diving with a long hose is to keep the hose nicely tucked under your light can or tucked in your BP/W belt. I have NOT had the hose get stuck on the back there on the transmitter. I probably would not attach the transmitter to a 6" hose as it will move around and potentially create problems. Others can pitch in.

What I have had get caught in the transmitter is my spool line attached to my dive flag but by reaching back, I've always been able to undo it. Even thought I cannot reach my valve when diving single tank (and oh yes, it frustrates me), I can easily reach the transmitter.

Some DIR divers would say that using the transmitter is not DIR.

Hope this helps. Shurite7 also makes great points.

 

[Satrekker]

Not sure why you are having an issue. Your LP hoses should not be that close to the HP ports, even when you are diving.

For years I've used a seven foot hose with a transmitter off of my Mk25 with not issues. Do you have the longer hose closest to you and the shorter hose in the port away from you? My short hose, with the alternate hanging around my neck, is on the forward port, one closest to my neck, and the seven foot hose is on the port behind it to prevent tangling plus it allows for ease of routing.

By any chance are you running with the Mk25 facing up or facing down when you place it on the tank valve? If the Mk25 is facing down there should be no interference, but if it is facing up then I can see the issue. Some people place the Mk25 in the up position (in my view upside down) so that it is easier to reach back and grab the LP hoses.

I'll shoot a photo of it set up tomorrow, so you can see what I'm talking about. The long hose is routed downwards and to the right for easy routing under the arm. it is the top of the loop behind my neck that sometimes gets caught on the transmitter, and my long hose is properly stowed on my right hip beneath my shears. Additionally, I usually also tuck any slack in the front of my belt and that tightens things up. Yes, I know that an AI transmitter is not DIR. Neither is my Dive Alert, and that can be a pain in the rear with my long hose, also. LOL

 

[Compressor]

It is DIR if DIR is to you what it is to me: Doing it Relaxed.
I think the issue is that you do have excess slack in your long hose. During the dive I frequently check my hose and take any slack out. I think that will help you.

 

[blac86]

I would advice attaching your transmitter to a six or nine inch hp hose directly. Aqualung/hollis/oceanic/shearwater/sherwood transmitters can attach directly to hp hoses, just add a spool between them.

How are you routing your long hose? I use a 7 ft on a mk25 with an oceanic transmitter. Are you bringing it under your arm, tucking under your waist strap, up your chest, and around your neck? With proper long hose routing you should alleviate the problem you are having.

Also don't worry about what is or isn't dir, the phrase has been hijacked by dogmatic self indulgent elitists and it doesn't mean what it used to. It's a meaningless nonsense phrase, a self affirming mantra it's adherents can use to feel superior to others. Dir meant approaching every dive with critical reasoning as a unique challenge and assembling the least amount of gear necessary to do it safely, and configuring it in the most optimal manner. Having standardized safety procedures, and a unified team theory. Nowadays it means follow whatever guidelines a training agency publishes blindly.

 

[Satrekker]

I use a 7 ft on a mk25 with an oceanic transmitter. Are you bringing it under your arm, tucking under your waist strap, up your chest, and around your neck? With proper long hose routing you should alleviate the problem you are having..

That's exactly how I route it. I've got my shears on my right side and route the hose under it and across chest, up and around neck. It's the slack that gives me issues. I think it's actually looping over the top of my 1st stage and getting caught behind it, so it's not actually the transmitter, I don't think. I just need to be more cognizant of the slack. Tucking it into the belt in the front takes care of this. Thanks for the replies!

 

[blac86]

That's exactly how I route it. I've got my shears on my right side and route the hose under it and across chest, up and around neck. It's the slack that gives me issues. I think it's actually looping over the top of my 1st stage and getting caught behind it, so it's not actually the transmitter, I don't think. I just need to be more cognizant of the slack. Tucking it into the belt in the front takes care of this. Thanks for the replies!

Yeah get the reg in your mouth comfortably and then grasp the excess together into a u-bend and tuck it under your waist strap.