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RBS-477DMR DMR/A
NALOG
R
– A
C
ECEIVE
NALOG
HANNELS
The radio can only receive broadcasts while the Push-To-Talk button is not being pressed. Whether or not you hear these
broadcasts depends upon the squelch settings.
There are three standard squelch modes that can be used when on an Analog channel
Carrier Squelch
Lets you hear all broadcasts on your channel strong enough for the radio to detect, and silences noise.
Tone Squelch
Uses the QC or DQC "tone squelch" format available on the base radio to screen unwanted calls.
Paging Decode
2-Tone, DTMF or Selcall can be used in conjunction with either carrier or tone squelch to block out all calls
except those sent specifically to your radio. When the unique paging decode sequence programmed into the
radio is decoded, the radio will emit a series of ring tones similar to a telephone.
When receiving a signal with Carrier or Tone Squelch - The display will indicate the Channel Name and "Busy"
C H A N
1
will appear on the 2
B u s y
A
When receiving a signal with a Paging Code - When the base radio decodes an incoming Paging signal it will
C H A N
1
emit a "ring" tone similar to a telephone, the display will indicate the Channel Name, and "Call" will appear on
C a l l
A
nd
the 2
When a received signal is present that does not carry the correct QC/DQC and/or Paging Code - The display
C H A N
1
will indicate the Channel Name and "Busy" will appear on the 2
B u s y
A
the radio speaker.
To override QC/DQC and/or Paging Decode and hear all received signals – If the P2 button has been
programmed for Monitor, the base radio can be set to receive all signals, regardless of QC/DQC and/or Paging
Code.
•
Press and hold the P2 BUTTON when "Monitor" appears on the display. Release the button after the
M o n i t o r
double beep is heard on the speaker.
•
The display will indicate the Channel Name and "Mon" will appear on the 2
C H A N
1
channel's radio frequency will be heard on the radio speaker.
M o n
A
If you are unable to activate the Monitor function, the channel has been programmed for Monitor Lockout.
• To disable the Monitor function, press and hold the P2 BUTTON when "Monitor Off" appears on the display.
M o n i t o r
Release the button after the double beep is heard on the speaker.
O f f
T
– A
C
RANSMIT
NALOG
HANNELS
•
Normally, you should monitor the channel before transmitting and talk only when the channel is clear. If
C H A N
1
"Busy" appears on the 2
B u s y
A
until the channel is clear.
•
To transmit - hold down the Push-To-Talk button and, with the radio at least 6 inches away, talk into the
microphone. Speak in a normal tone, since talking louder will not improve the listener's reception.
•
The display will indicate the Channel Name and "TX" will appear on the 2
C H A N
1
T X
A
•
Keep talk times as short and infrequent as possible to allow others to use the channel.
• Transmitter Time Out - If you hold down the PTT button longer than 60 seconds a low tone followed by a
higher-pitched tone will sound on the radio speaker and the transmitter automatically shuts off. Release the
PTT button to resume normal operation.
QC
DQC T
C
AND
ONE
ODES
Tone codes filter out static, noise and reduce unwanted "chatter" on radio channels. When you operate on a frequency with a tone
code, you screen out most interference. This allows you to communicate with less interference and to hear only those users in your
radio group.
IMPORTANT! All radios in the talk group must operate on the same frequency and tone code.
Have questions? Call 800-872-1872 or visit our website at www.ritron.com
B
R
U
M
ASE
ADIO
SER
nd
line. The incoming signal will be heard on the radio speaker.
line. The incoming signal will be heard on the radio speaker.
nd
line of the radio display the radio channel is in use and you should not transmit
– A
C
NALOG
HANNELS
ANUAL
R
O
– A
ADIO
PERATION
nd
line. The incoming signal will not be heard on
nd
line. All activity on the
nd
line.
C
NALOG
HANNELS
9
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