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4.6.
Time Since Death
Some VHF transmitters are programmed to broadcast a time-since-death code.
The code identifies the amount of time that has elapsed since death.
Depending on factory settings, the amount of elapsed time is broadcast:
As either hours or minutes; and
At regular intervals for one minute (known as a data minute)
NOTE: When the elapsed time is not being broadcast, the mortality pulse rate is
broadcast
Typically, the data minute is broadcast every ten minutes and the elapsed time
is set to hours. For information on actual settings, see the order summary form
for the VHF transmitter in question.
IMPORTANT: Functionality of TSD may differ depending on product-series
selection. Contact Lotek for details.
4.6.1.
Deciphering the Code
At the start of the data minute:
The mortality pulse rate will cease
Two quick pulses will be broadcast
Between zero and nine pulses will be broadcast
(The number of pulses indicates the first digit)
Two quick pulses will be broadcast
Between zero and nine pulses will be broadcast
(The number of pulses indicates the second digit)
Two quick pulses will be broadcast
Between zero and nine pulses will be broadcast
(The number of pulses indicates the third digit)
Two quick pulses will be broadcast
Between zero and nine pulses will be broadcast
(The number of pulses indicates the fourth (last) digit)
