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Improvement of TR reception
Posted by: tblein ()
Date: May 25, 2019 07:19PM

Hello

I have an OSTC 2TR and a transmitter. I managed to paired the computer and the transmitter without problem. Also, no problem to read the pressure before diving. However, during the major part of the dives I had no connection to the transmitter. Time to time and without pattern I got connection with the transmitter.

I know the subject is controversial and I am not here to complain but to find solutions. If the one around that managed to get good connection between the transmitter and the computer could share the tricks a lot of people will certainly appreciate.

Thomas

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Re: Improvement of TR reception
Posted by: Duglum ()
Date: May 27, 2019 04:52AM

Not as bad as "major part of the dive" for me, but there are some problems. I also had a few minutes without reception on almost every dive...

OSTC Sport #12483
OSTC 2 TR #17196

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Re: Improvement of TR reception
Posted by: ijdod ()
Date: May 27, 2019 08:30AM

Same here. Still trying various ways to mount/orient the transmitter, but 'poor' is the best I've seen so far, with large parts of the dive without pressure reading. I've used AI before (Suunto, Uemis), and while all systems can suffer from the occasional glitch, this is by far the poorest performance I've seen, to the point of being useless. (and to the point of me actually considering cutting my losses en just buying a Perdix...)

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Re: Improvement of TR reception
Posted by: ijdod ()
Date: May 30, 2019 10:58AM

Last dive actually went pretty well, pressure worked for most parts of the dive. Used sport v10.53 (which has a more recent RX-firmware than tech. I believe installing v10.53 then installing 3.01 would also work.

Transmitter was in front of my wing, just next to my right shoulder. When pressurized, the hose is quite stiff. Earlier attempts all had the TX behind the wing, closer to the tank.




Edited 1 time(s). Last edit at 05/30/2019 11:16AM by ijdod.

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Re: Improvement of TR reception
Posted by: tblein ()
Date: May 30, 2019 03:49PM

Thanks ijdod for sharing your experience. I was indeed suspecting that bringing the transmitter closer to the computer will improve the connection. However I had no idea how close it should be.

Do you have any idea of the average distance between the computer and the transmitter when the reception was good? In other words is there any recommendation of maximum distance between the computer and the transmitter? I did not found it in the transmitter manual, but my German is not so good.

I didn't notice that the sport v10.53 got an updated RX-firmware. Matthias could you confirmed that the installation of the sport v10.53 and then back to the tech v3.01 will do the same? Or even better do you know when the updated RX-firmware will land in the tech version?

Thomas

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Re: Improvement of TR reception
Posted by: ijdod ()
Date: May 30, 2019 04:13PM

I think it was less than half a meter or so? I dive in horizontal trim, computer on right wrist, cable light held with goodman handle in right hand.

I think 3.01 is on RX 1.35 or 1.36. v10.53 is on RX 1.37. If I reboot my computer to 3.01 now it reports RX 1.37, so updating it that way seems to work. No idea if it matters though; it's not clear what RX firmware does, nor what the improvements, if any, are.

According to the german manual, range is about 1m, and the TX should be mounted parallel to the computer (parallel with your arm, essentially). Distance and orientation aside, my previous attempt had the transmitter against the tank, which I could image affecting operation.

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Re: Improvement of TR reception
Posted by: Duglum ()
Date: May 30, 2019 04:31PM

I was using RX 1.37 with v3.01 on the last dives.. the problems remained. I also have the transmitter on a short Miflex hose on the right side and the OSTC on the right arm. If i had to guess i'd say the distance never was more than 50cm.

OSTC Sport #12483
OSTC 2 TR #17196

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