Two-Way Radio Modes - Decagon Devices EM50 Operator's Manual

Em50 Series
press the disconnect button. ECH20 Utility sends a logout command
to the remote logger to indicate the end of the communication ses-
sion. When the remote logger hears the logout command, it waits
for ten minutes before listening for additional connection attempts
via the radio (you can always direct connect to your logger). This
allows you to connect to other loggers with the same radio settings.
Otherwise, the first logger you contacted may reconnect. This would
prevent you from connecting to your other loggers.
The two-way modes generally consume the most power. The Em50R
is designed to work for several months in the two-way modes.
6.2.1

Two-Way Radio Modes

Use the Radio settings section of ECH20 Utility to choose one of the
following radio modes that support two-way communication.
Two-Way 24-hour: The radio logger listens for connection at-
tempts every 45 seconds, 24 hours a day. This mode uses a sub-
stantial amount of batter power. Expect batteries to last for approx-
imately 3 months.
two-way 6:00-18:00: The radio logger listens for connection at-
tempts every 45 seconds between 6 AM and 6 PM. The logger does
not use the radio between 6 PM and 6 AM to conserve battery power,
by not listening for connection attempts during the night. Expect
batteries to last for approximately 6 months in this mode.
Transmit + two-way and CD Transmit + two-way: These
modes combine the two-way Radio modes and the Transmit Radio
modes. You could use these modes while configuring and testing your
radio network. You should not leave your radio logger in these modes
because they use the most battery power of all the radio modes. Ex-
pect batteries to last for approximately three months in this mode.
Note: Using Transmit + two-way and CD Transmit + two-way radio
modes with the wake interval set to 1 or 2 can cause the batteries of
your logger to drain very rapidly.
6 EM50R RADIO TELEMETRY
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