Hytera HM78X User Manual

56
Phenomena Analysis Solution
Communications with
group members are
unavailable.
The frequency or signaling type may be
inconsistent with that of other members.
Set your TX/RX frequency and
signaling to the same as that of other
members.
The channel type (digital or analog) may be set
inconsistently.
Make sure that all members are on
the same digital or analog channel.
You may be too far away from the group members. Move towards other members.
The signal may be weak.
Make sure that call participants are
within the communication range.
There are unknown voices
or noises on the channel.
You may be interrupted by radios using the same
frequency.
Change the frequency, or adjust the
squelch level.
The radio may be set with no signaling.
Set signaling for all member radios to
avoid interference at the same
frequency.
There is too much noise
and hiss.
The signal may be weak.
Make sure that call participants are
within the communication range.
The radio may be in an unfavorable position. For
example, the signal may be blocked by tall
buildings or frustrated in the underground areas.
Move to an open and flat area, and
then restart the radio.
The radio may suffer from external disturbance
(such as electromagnetic interference).
Stay away from the equipment that
may cause interference.
The keys are unavailable. The keypad may not work temporarily. Restart the radio.
The LCD does not display
any information.
The LCD may not work temporarily. Restart the radio.
The GPS cannot locate
your position.
The radio may be at an unfavorable position, so no
GPS signal is received.
Move to an open and flat area, and try
again.
If the above solutions cannot solve your problems, or you may have some other queries, please contact us or your local
dealer for more technical support.

Hytera HM78X Specifications

General

Brand	Hytera
Model	HM78X
Category	Radio
Language	English