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Transmitting time limitation (Time Out Timer)
The transmitting time limiter (TOT) prevents continuous transmission and
therefore prevents channels being occupied. The transmitting time limiter
(TOT) can be adjusted in increments via the software. The expiration of the
specified transmission time is signalled by a reference tone. The user can
interrupt the signal by releasing the PTT button. If the transmitting time limiter
is exceeded, the transmission is interrupted automatically. The maximum
transmission time in the TOT mode is 3 minutes.
Battery status display
Press the pre-programmed battery status display button and the walkie-talkie
will announce the battery status acoustically („1", „2", „3", „4").
Battery saving mode
Turn on the battery saving mode via the optional software in order to reduce
the unit's power consumption during standby operation. The radio unit auto-
matically changes to this mode after approximately 10 seconds if there is no
activity. The mode is deactivated as soon as the unit receives a signal or the
user conducts an activity.
Low battery status warning
The red LED display flashes if the unit's battery status is too low for trans-
mission. After an audio signal is sounded three times (after 30 seconds in
each case), transmission is terminated. The battery must be recharged or
replaced.
Control call
The control call is transmitted by pressing a pre-programmed button. The
recipient receives a warning tone over a preset time period. The control
call can be terminated by pressing any button. Otherwise the radio unit will
automatically change to the emergency call mode that was programmed to
begin with.
CTCSS/DCS pilot signals
The analogue/digital CTCSS/DCS pilot signals serve for the formation of
groups and the avoidance of unwanted activities on the same channel. If a
pilot signal has been programmed and a message is transmitted, only one
channel opens for the recipient if he/she has programmed the same pilot
signal.
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8.4.4 Troubleshooting
Possible causes
No function
Group members cannot be heard.
Other voices that do not belong
to the group can be heard on the
channel.
9. R epair
The national regulations and guidelines for repairs vary from country to
country. We therefore recommend that all repairs are conducted by ecom in-
struments GmbH, Germany because the safety of the unit needs to be tested
after repairs are implemented.
10. Cleaning, maintenance and storage
- Only use a damp and suitable cloth or sponge to clean the unit. Do not
use any solvents or abrasive cleaning agents when cleaning.
- It is recommended that you have the functionality and accuracy of the unit
inspected by the manufacturer every two years.
- The battery should be removed from the unit during prolonged periods of
storage.
- Do not allow storage temperatures to exceed or fall below the permitted
range of -20°C to +45°C.
11. Disposal
Old electrical devices as well as „historical" old electrical devices from ecom
instruments GmbH are supplied for disposal at our expense and disposed of
free of charge in accordance with European Directive 2002/96/EC and the
German electrical law of 16/03/2005. The costs associated with returning
devices to ecom instruments GmbH are to be borne by the sender.
Solutions
The battery status is too low, the battery
must be recharged or replaced.
Make sure that you have programmed
the same frequency, the same pilot
signal (CTCSS/DCS) or the same
5-tone / HDC2400
TM
signal as your
group members.
The group members may not be
within the reception area.
Make sure that all of the group
members have set the same audio
frequency.
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