Transmit; Fig-3: Transmit Busy Lamp; Radio Alert Tones; Channel Scan Operation - Ritron 7 Series Owner's Manual

7-Series Base Station User Manual
T
RANSMIT
Normally, you should monitor the channel before transmitting
and talk only when 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.
Keep talk times as short and infrequent as possible to allow
others to use the channel.
A Transmit / Busy Lamp in the lower right
corner of the Channel Display lights whenever
the transmitter is activated and blinks when the
channel is busy.
FIG-3: T
RANSMIT
R A T
ADIO LERT ONES
The base radio responds to certain instructions by sounding a
beep or series of tones. These tones can tell you that the radio
is working as you expect.
Power On / Self Check "OK"
When it is first turned on, the base radio runs a quick "self test"
to confirm basic functions. When complete the base radio will
emit the Channel Beep and the Channel Display will show the
operating channel. The base radio is then ready to use.
Error Tones
However, if the "self test" detects a diagnostic error, an error
tone sounds. Turn off the radio and try again. The error tone
will also sound if a channel has been programmed for an invalid
frequency.
A long, low-pitched tone means the supply voltage is too low to
operate the base radio. If you cannot correct the problem,
consult an authorized Ritron service center or Ritron directly.
Squelch Mode
When you press and hold both Volume buttons at the same
time, a SINGLE beep will sound to indicate that tone squelch is
on. A DOUBLE beep means that carrier squelch is on. If the
channel is programmed for Paging Decode, a TRIPLE beep
indicates that the base radio is in Paging Decode mode.
Transmitter Time Out
A low tone followed by a higher-pitched tone sounds and the
transmitter automatically shuts off if you hold down the PTT
button longer than 60 seconds.
Battery Alert Tone
In battery powered installations: Once the battery voltage drops
below the required "operating voltage" the radio emits a long,
low tone and turns itself off.
Courtesy Beep
A short tone sounds at the end of each received transmission
to indicate that the channel is clear and you may transmit.
Have questions? Call 800-USA-1-USA (800-872-1872) or visit our website at www.ritron.com
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USY AMP
Busy Channel TX Inhibit
If a user is transmitting on your radio frequency without your
tone, you will not be allowed to transmit. The base radio will
beep a series of long, low tones while the PTT is held down
(like a busy signal).
Transmit Clear to Talk Beep
A short tone sounds after the PTT has been pressed to indicate
that the base radio is ready for you to begin talking.
C S O
HANNEL CAN PERATION
Channel scanning allows you to listen to broadcasts on your
radio channels. The JBS / PBS base radio will scan all
channels programmed into the radio except the NOAA Weather
Channel.
How Scanning Works
Using the Channel Selector button, select the Scan channel.
The base radio sounds the Scan Beep, and then repeatedly
checks each channel in the scan list. The channel display will
show the channel numbers as they are scanned.
When receiving a call on a channel being scanned, the base
radio will stop scanning to let you hear communications on that
channel. After the transmission has ended the base radio will
pause before it resumes scanning to allow you time to respond.
When transmitting from the Scan channel, the base radio will
go to the last channel on which a signal was received, then
transmit. After you release the PTT the base radio will pause to
allow time for a response, and then resume scanning.
Temporary Busy Channel Blocking
If one of the channels in the scan list is so busy that you want
to temporarily block it out, press the Channel Selector button
while the base radio is stopped on the channel to be blocked
and hold it until scanning resumes. The blocked channel will
now be skipped in the scan list.
The blocked channel will be returned to the scan list if the base
radio is turned off and then back on again, or when the radio
channel is changed using the Channel Selector button. The first
channel in the scan list cannot be blocked.
To turn Channel Scan On / Off see "How to Field Program
Advanced Feature Codes" on page 19.
Last Channel Scanned Alert Tone
When changing channels with the Channel Selector button, an
alert tone will sound to indicate the last channel that received a
message when the radio was scanning. This will identify the
channel on which the last message was received, and allow
uninterrupted transmission on that channel without the
constraints of scanning. You can then press the Channel
Selector button to return to the scan channel.
Using the "Z" Button for Scan
The special feature "Z" button can be programmed to initiate
scanning. The UHF JBS-447D and PBS-447D base radios are
programmed for "Z" button Scan channel operation from the
factory.
To select the Scan Channel, press the "Z" button. The radio
sounds the Scan Beep, and scanning operation is initiated. The
Scan channel will not be accessible with the Channel Selector
RADIO OPERATION
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