Retevis RB618 Manual Del Usuario página 9

Receive Sensitivity
Adjacent Channel Selectivity
Inter Modulation and Rejection
Conducted Spurious Emission
Rated Audio Power Output
Receive current
Rated Audio Distortion
NOTE:
All specifications may be modified without prior notice or liability. Thank you
Frequency Allocation (PMR446 16CH):
CH Frequency
1 446.00625
2 446.01875
3 446.03125
4 446.04375
5 446.05625
6 446.06875
7 446.08125
8 446.09375
9 446.10625
10 446.11875
11 446.13125
12 446.14375
13
446.15625
14 446.16875
15 446.18125
16 446.19375
0.25μV (12dB SINAD)
≥55dB@12.5KHz
≥55dB@12.5KHz
≤-57dB@12.5KHz
0.75W @8ohms
≤350mA
≤5%
CTCSS Power
114.8
Low
114.8
Low
114.8
Low
114.8
Low
114.8
Low
114.8
Low
114.8 Low
Low
114.8
D026N Low
D026N Low
D026N
Low
D026N Low
D026N Low
D026N Low
D026N
Low
D026N Low
Phenomena
The battery may be installed improperly
The battery power may run out
You cannot turn on the radio The battery may suffer from poor contact
caused by dirty or damaged battery contacts
The battery voltage maybe low
The volume level may be low
During receiving, the voice
is weak or intermittent The antenna maybe loose or maybe installed
incorrectly
The speaker maybe blocked
The frequency or signaling type maybe inconsistent
You cannot communicate
with that of other members
withother group members
You may be too far away from other members
You may be interrupted by radios using the same
frequency
You hear unknown voices
or noise The radio in analog mode maybe set with no
signaling
You may be too far away from other members
You may be in an unfavorable position. For example,
You are unable to hear your communication may be blocked by high
anyone because of too buildings or blocked in an underground area
much noise and hiss
It may be the result of external disturbance (such as
electromagnetic interference)
VOX may be turned on or the headset is not
The radio keeps transmitting
installed in place
You cannot use the keys The keypad may not work temporarily
NOTE:
If the above solutions cannot fix your problems, or you may have some other queries,
please contact your dealer for more technical support.
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Analysis Solution
Remove and reattach the battery
Recharge or replace the battery
Clean the battery contacts or replace
the battery
Recharge or replace the battery
Increase the volume
Turnoff the radio, and then remove and
reattach the antenna
Clean the surface of the speaker
Verify that your TX/RX frequency and
signaling type are correct
Move towards other members
Change the frequency, or adjust the
squelch level
Request your dealer to set signaling for
the current channel to avoid interference
Move towards other members
Move to an open and flat area, restart
the radio, and try again
Stay away from equipment that may
cause interference
Turn off the VOX function. Check that
the headphones are in place
Restart the radio
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