Halcyon Symbios

Please register or login

Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.

Benefits of registering include

  • Ability to post and comment on topics and discussions.
  • A Free photo gallery to share your dive photos with the world.
  • You can make this box go away

Joining is quick and easy. Log in or Register now!

scubadada

Diver
Staff member
ScubaBoard Supporter
Messages
21,298
Reaction score
21,398
Location
Philadelphia and Boynton Beach
# of dives
2500 - 4999
Does anyone have experience with the Halcyon Symbios dive computer and transmitter?

 
I hope someone gives a real world report, it’s interesting and I wonder if it’s cross compatible on the transmitter with anything else. Curious on the transmitter where one can “rotate” the battery and turn off the trim feature.
 
I hope someone gives a real world report, it’s interesting and I wonder if it’s cross compatible on the transmitter with anything else. Curious on the transmitter where one can “rotate” the battery and turn off the trim feature.
I'm guessing (unless there is a battery holder and 2-sets of contacts) that rotatating end-for-end coupled with our friends, diodes, allows differential powering of the circuits.
Reverse-polarity protection too!
 
Does anyone have experience with the Halcyon Symbios dive computer and transmitter?

I currently dive the Symbios computer and transmitters in side mount and back mount doubles. I like it well enough for how thin it is and how easily readable it is at a glance. Operation wise it's less intuitive than shearwater (I used to use the perdix) but not horrible. My biggest complaints are
1) it doesn't show very much information at a time/isn't as customizable.
-you still have all the same bells and whistles but displaying all the information requires you to scroll through screens vs having it on on page. Depth, time, and NDL take up 3 out of 4 information boxes with the last one being able to be scrolled through for gas, TTS, ect
2) doesn't retain logged information like gas
-AI shows you pressure left but after a five it doesn't retain for logging purpose. How a big deal but still
3) app for logging is pretty poor
-the app for downloading dives is pretty poorly designed. It's set up like halcyon's own Instagram so you need to open it up, scroll away from the new feed page, go to devices, go to logged dives, then select the dive you want. If you don't have wifi I have had problems opening the app but that might be a me problem.
4) depth and accent rate are delayed.
-again not a big problem but holding a mid water deco stop the depth gage takes time to display the most current depth. So if you are not very stable on water positioning you might be "hunting" the depth you want since there is a mild gap delay between arriving at the depth and displaying the current depth on computer

It's a nice system all being considered, it feels like a oversimplified version of the shearwater perdix with a larger/ easier to read screen. But ultimately feels way less refined.
 
I hope someone gives a real world report, it’s interesting and I wonder if it’s cross compatible on the transmitter with anything else. Curious on the transmitter where one can “rotate” the battery and turn off the trim feature.
I don’t have a real-world report, but from looking at the FCC paperwork, the transmitter is definitely not compatible with anything else on the market. Totally different frequency (and modulation).
 
I don’t have a real-world report, but from looking at the FCC paperwork, the transmitter is definitely not compatible with anything else on the market. Totally different frequency (and modulation).
 
I don’t have a real-world report, but from looking at the FCC paperwork, the transmitter is definitely not compatible with anything else on the market. Totally different frequency (and modulation).
The Halcyon Symbios tank pod uses 125 kHz magnetic induction communication. This is a bigger difference from competing products than just frequency or modulation; it's not really radio in the traditional sense. US Patent No. 7,877,059 B2 has some details about how the general technology works if you want to dive into the details.
 
The Halcyon Symbios tank pod uses 125 kHz magnetic induction communication. This is a bigger difference from competing products than just frequency or modulation; it's not really radio in the traditional sense. US Patent No. 7,877,059 B2 has some details about how the general technology works if you want to dive into the details.
The latest issue of InDepth magazine has an article with more technical details on the Halcyon Symbios magnetic induction communications.
 
Live link: Symbios as the one above is dead.

One comment about dive log software. I have found that in general the dive log software supplied by the mfg is less than desirable. Their is no money to be made, in fact money is lost. But the mfg needs to supply something for their customers. The best dive log software is commercially available. I have not kept up with what is out there.
 
I'm extremely curious how much Halcyon has done beyond a branding/distribution deal with Oxygen Scientific Diving. OSD promoted the RNO interface, the Rhino-1, Rhino-HUD on Facebook as far back as 2023. They even had a rebreather then that looks extremely close to the Symbiosis.
 
Back
Top Bottom