User's Manual

OPERATION SST-442
9
WHAT THE RADIO TONES MEAN
The handheld responds to certain instructions by
sounding a beep or series of tones. These tones can
tell you whether the radio is working as you expect.
Power On/Self Check “OK”
When it is first turned on, the radio runs a quick “self
test” to confirm basic functions. The radio then beeps
the number of times equal to the channel number
selected. The radio is then ready to use.
Error Tones
However, if the “self test” detects a diagnostic error,
an error tone sounds. Alternating tones (the second
is longer and lower pitched) indicate the radio
frequency synthesizer is malfunctioning. Turn off the
radio and try again. 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 Ritron.
Channel Select
When the Channel button is pressed, the radio beeps
a number of times equal to the current channel
number. Pressing the Channel button again will
increment the channel and the radio will beep the
new channel number.
Tone Squelch
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.
Recharge Battery Alert
As the battery voltage approaches the minimum
required “operating voltage” the radio will emit a short
beep every minute to alert the user that the battery
will soon need recharging. Once the battery charge
drops below the required "operating voltage," the
radio emits a long, low tone and turns itself off. If you
turn the radio back on, it will beep again and shut
itself off. Recharge the battery.
OPTIONAL RADIO TONES
The SST-442 can be programmed using the RITRON
PC Programmer for optional alert tones.
Receive Squelch Tone
A short tone sounds at the end of each received
transmission to indicate that you may transmit.
Busy Channel Transmit Inhibit
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).
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 the programmed
Time-out. The radio automatically switches to receive
mode. Authorized service personnel can turn off this
feature.
BELT CLIP INSTALLATION
If you are going to attach the belt clip to the handheld,
follow these instructions:
1. The belt clip is fastened to the radio case back
with the Philips head screw provided. Use the
screw included, since a longer screw might
damage the radio’s electronics.
Do not use petroleum solvents of any kind on the
radio. These can corrode the case.
2. Place the belt clip on top of the radio case back,
with the screw hole in the aligned with the hole in
the radio case.
3. Using the screw that came with this accessory,
attach the clip to the radio.