?? Please explain.better battery monitoring by the computer
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?? Please explain.better battery monitoring by the computer
?? Please explain.
ALL the battery monitoring is done in the transmitter and encoded in the transmitted signal. Since the transmitted signal is the same for all those MH8A transmitters, all the encoded battery info is the same, regardless of the transmitter or the receiving computer. The encoding just gives OK (>2.75V), LOW (2.75V), or CRITICAL (2.5V). See Reading Wireless Air Transmitter using Arduino for the encoding, see the Shearwater manual for the voltage levels associated with the encoding.My mistake. I had incorrectly thought the SWIFT provided better low transmitter battery monitoring on the Shearwater computers. Reading the manuals, I believe I was mistaken. I must have misunderstood something I had read previously. But it looks like SW AI computers will report low transmitter battery levels on both PPS & SWIFT transmitters.
@tursiops … thx for the question as it allowed me to correct an error in my understanding.
I edited my post to strike through the incorrect information,
300 hrs of transmission is the lifespan of an MH8A transmitter I believe. SW recommendsSince we, uh, digressed into battery replacement, what is the recommended replacement schedule for MH8A transmitters? I have about 100 dives on one battery (including some extended time when it was pressurized after the dive). I do have an SPG backup, but the batteries are cheap.
Since we, uh, digressed into battery replacement, what is the recommended replacement schedule for MH8A transmitters? I have about 100 dives on one battery (including some extended time when it was pressurized after the dive). I do have an SPG backup, but the batteries are cheap.
5 years of storage, 300 hrs of use."5 years or 300 dive hours"
"In normal usage, the Swift transmitter's battery will last several years. Due to the infrequency of a battery change, we made the choice to go with a user removable cover as it allows for an overall a smaller design. The long period between the first low battery warning (yellow) and last transmission should allow you to complete many dives after the first low battery warning, reducing the urgency of a battery change. The battery should be changed as soon as practical after the first (yellow) battery warning and immediately following a critical (red) low battery warning."
I say I want to replace them every year. But that turns into the yellow / red warning!5 years of storage, 300 hrs of use.
Many people just wait for the warning. Since I don’t use a spare SPG, I tend to be more cautious and replace mine annually.
I’m unable to find where I thought I saw SW recommended annual replacement. That may also be something I made up!![]()