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In the water, it uses acoustics, not RF, so the effect of placement will be quite different than for the PPS transmitters. I wish we knew the acoustic frequencies it uses; probably pretty high if it is so sensitive to placement.I think it is pretty safe to say that these transmitters won't work with, for example, a Perdix AI or Teric. But, since the Descent uses RF to read the sensor when dry, I suppose it is still possible that Garmin could build into the firmware the ability for the Descent to read a Shearwater/PPS transmitter, should you choose to use one, instead of a Garmin transmitter. Doubtful. But, it seems possible.
2 things seem particularly interesting.
- "when the pairing is complete, the sensor plays a tone". Interesting that the sensor has an ability to make sounds.
- "the sensor should not angle down toward the tank". I run all my transmitters so that they angle down toward the tank, to help protect them from hitting anything or being grabbed and used as a handle. I would not like a transmitter that was required to be angled up. Also, it says "the sensor should be at least 7 cm (3 in.) from your body". That seems to counterindicate the option to put it on a short HP hose and run it over your shoulder, as that would result in it being right up against your body.
- "the sensor should not angle down toward the tank". I run all my transmitters so that they angle down toward the tank, to help protect them from hitting anything or being grabbed and used as a handle. I would not like a transmitter that was required to be angled up. Also, it says "the sensor should be at least 7 cm (3 in.) from your body". That seems to counterindicate the option to put it on a short HP hose and run it over your shoulder, as that would result in it being right up against your body.
It also suggests it works in a completely different way to PPS transmitters. PPS transmitters broadcast the signal and there is no pairing required at all. The transmitter doesn't know or care who is listening to the broadcast."when the pairing is complete, the sensor plays a tone". Interesting that the sensor has an ability to make sounds.
It also suggests it works in a completely different way to PPS transmitters. PPS transmitters broadcast the signal and there is no pairing required at all. The transmitter doesn't know or care who is listening to the broadcast.
I wonder if pairing makes it more or less reliable.
?? But the PPS uses a 38kHz RF signal, while the Descent uses an ultrasonic audio signal. How are these compatible?So far, I haven't seen any information that rules out the possibility of a Descent working with a PPS transmitter.
?? But the PPS uses a 38kHz RF signal, while the Descent uses an ultrasonic audio signal. How are these compatible?