page 3 RITRON, INC. 1-800-USA-1-USA (1-800-872-1872)
Have questions? Call
800-USA-1-USA
(800-872-1872) or visit our website at
www.ritron.com
INTRODUCTION
page
1
THANK YOU FOR CHOOSING RITRON
Congratulations on your purchase of the SST "D-Series"
radio. Your new radio is the culmination of Ritron's 25
years of designing, manufacturing, and supplying reliable,
professional wireless communication products. Ritron
wireless products will improve the operation, safety, and
profitability of any organization by providing instant voice
communications between employees throughout the
workplace.
SST "D-SERIES" MODEL NUMBERS
VHF MODELS
SST-144D ......
(Patriot) ..... (4-Watt, 10 Channel)
UHF MODELS
SST-446D ......
(Patriot) ..... (2-Watt, 10 Channel)
SST-444D ......
(Patriot) ..... (3-Watt, 10 Channel)
The model number located on the back of the radio
case indicates its operating band.
VHF
radios are designed to operate on up to ten
channels within the 12 MHz band between factory
standard 150 and 162 MHz.
UHF
radios are designed to operate on up to ten
channels within the 20 MHz band between factory
standard 450 and 470 MHz.
FEATURES
This manual covers the Ritron SST "D-Series" radios.
These radios are compact, programmable two-way
handhelds designed to operate in a professional FM
communications band (VHF or UHF business available).
Each radio is equipped with these features:
Push-button operating controls.
The Push-To-
Talk (PTT) and Channel buttons are on one side of
the radio, and the On/ Volume Up, Volume Down/
Off and monitor controls on the top.
Channel display.
The LED display will show the
current operating channel,and contains a transmit/
busy lamp. The display also indicates paging
decode status on radios programmed for 2-tone
paging operation.
Quick-change battery pack and drop-in
charger capabilities.
See Optional Charging
Accessories on the page 11.
10-channel capability.
Up to 10 channels can be
programmed to contain a unique set of operating
frequencies and options.
QC (Quiet Call) and DQC (Digital Quiet Call)
intereference eliminator codes.
Each channel
can be programmed from a list of 51 QC sub-
audible codes or 83 DQC digital privacy codes.
2-tone paging decode.
Each channel can be
programmed for 2-tone paging decode within a
frequency range of 300-1500 Hz. Additional 2-tone
paging features include Group Call, All Call,
automatic reset, and transpond alert.
2-tone paging encode.
Each channel can be
programmed for 2-tone paging encode within a
frequency range of 300-1500 Hz.
Wide or narrow band operation.
Each channel
is programmable for wide or narrow band transmit
operation.
High or low transmit power.
Each channel can
be programmed for high or low transmit power to
satisfy your needs for extended range or battery
conservation. (This option is not available on the
SST-446D)
Channel scanning.
The Scan channel allows
scanning of all channels programmed into the
radio, and can be turned On and Off through Field
programming. The scan channel has many
features, including Priority Scanning and Busy
Channel Blocking.
Weather Channel.
VHF models can be pro-
grammed to receive your local NOAA weather
radio broadcast. The Weather channel can be
turned On and Off through Field programming.
Weather Alert.
VHF models can be programmed
to alert you when the National Weather Service
detects threatening weather conditions. The
Weather Alert feature can be turned On and Off
through Field programming.
Low battery alert.
The SST "D-Series" radio will
sound a series of low battery alert tones when
your battery is running down to allow you time to
recharge or change your battery.
Alert tones.
Each channel is programmable for a
variety of alert tones that include RX courtesy
beep, TX clear to talk beep, busy channel lockout
alert, last active channel marker, and channel
scanning indicator.
Squelch adjustment.
Squelch sensitivity can be
programmed on a per channel basis to meet your
specific needs.
