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OPERATION
page
5
Error Tones
An error tone sounds, if the “self test” detects a
diagnostic error. The error tone indicates the radio
frequency synthesizer is malfunctioning. 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 battery voltage is too low to operate the radio.
In this case, recharge the battery. If you cannot
correct a problem, consult an authorized Ritron
service facility or call Ritron.
OPTIONAL ALERT TONES - What They Mean
The SST "D-Series" radio can be programmed using
the RITRON PC Programmer for optional alert tones.
See your Ritron dealer or contact Ritron directly for
programming of these options.
Courtesy Beep Tone
A short tone sounds at the end of each received
transmission to indicate that the channel is clear and
you may transmit.
Busy Channel TX Inhibit Tone
If a user is transmitting on your radio frequency
without your tone, you will not be allowed to
transmit. The radio will beep a series of long, low
tones while the PTT is held down (like a busy
signal).
Transmit Clear To Talk Beep Tone
A short tone sounds after the PTT has been
pressed to indicate that the radio is ready for you to
begin talking.
CHANNEL SCAN OPERATION
Channel scanning allows you to listen to broadcasts
on your radio channels. The SST "D-Series" 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 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
radio will stop scanning to let you hear communica-
tions on that channel. After the transmission has
ended the radio will pause before it resumes scanning
to allow you time to respond.
When transmitting from the Scan Channel, the
handheld will go to the last channel on which a signal
was received, then transmit. After you release the PTT
the 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 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 radio is turned off, or when the radio channel is
changed using the Channel Selector button. The 1st
channel in the scan list cannot be blocked.
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.
Priority Scanning (Optional)
The SST "D-Series" radios can be optionally
programmed for priority scanning. Priority Scan
allows you to periodically monitor a Priority Channel,
even if the radio has stopped on another channel.
This will prevent missed calls on the primary
operating channel when in scan mode.
With Priority Scan enabled:
• The first channel in the scan list is the Priority
Channel.
• The radio checks the Priority Channel every two
seconds to check for activity. This time is
programmable and can be set for 1 - 8 seconds.
• The radio can be programmed to transmit only on
the Priority Channel when scanning.
• The radio can be programmed to sound a Priority
Channel Beep whenever the radio receives on
the Priority Channel when scanning.
See your Ritron dealer or contact Ritron directly for
PC programming of this option.
See "How to Turn Scan Channel On / Off" on
page 7.
