The Maxon SD-125E series is a professional two-way radio with 16 channels that provides reliable communication for remote control and monitoring applications. It features VHF and UHF frequency bands, 5/1 watt transmit power, and interfaces via an RS-232 connector. The optional CTCSS encoder/decoder module increases communication privacy. The radios are suitable for applications including security, utilities, irrigation, vehicle tracking, and more.

1. CHOOSE WELL...
CHOOSE WISELY...
CHOOSE MAXON...
SD-125E SERIES PROFESSIONAL TWO-WAY RADIO
MAXON’S RF LINK MODULES ALLOW RADIO FREQUENCYSIGNALS TO BE EXCHANGED FOR THE RELIABLE
CONTROL AND MONITORING OF REMOTE DEVICES
Adding the expansion lid to Maxon’s SD-125E RF link module provides the benefit of installing CTCSS modules, modem
boards, or other option boards. Take a look and see how they can extend your communication possibilities Installing the
(optional) Maxon CTCSS Encoder / Decoder (SD-010) for the SD-125E Series Increases privacy during audio applications
and operates on all 38 EIA standard CTCSS tones
Applications
Water/waste treatment plants • Oil & Gas field SCADA • Security/Alarm systems • Gate ID Tag systems
Remote controls • Commercial Sign Control • Automatic Vehicle Location • Kill Switches • Weather monitoring
Irrigation systems • Emergency Call boxes • Low power repeaters
SD-125E Series Features
•
16 Channels (Dip Switch Select)
•
5/1 Watt Tx Power Out
•
12.5/25 kHz Channel Bandwidth
•
* Not to scale
Available 1 VHF (V2) and 3 UHF (U1, U2 &U3) Bands
Tx Time Out Timer
•
DE-9 Male RS-232 Connector
•
Carrier Detect, Busy Channel Lockout
210612
•

2. Frequency Bands
SD-125E U1 400-430MHz • SD-125E V2 148-174MHz
SD-125E U2 450-470 MHz • SD-125E U3 470-490 MHz
Specifications
Vehicle tracking
Water
Transmitter
•
•
•
•
•
•
•
•
•
Output Power 5/1 Watt VHF/UHF
•
Spurious Emissions -60 dBc
•
FM Hum and Noise -40 dB @ 12.5 kHz
•
-40 dB @ 25 kHz
•
Modulation Sensitivity 100 mV RMS @ 60% peak dev.
•
•
•
•
•
•
Operating Temperature Range: -10C to 60C
Number of Channels: 16 (Internal by dip switch)
Service: Single to two frequency simplex
Channel Spacing: 12.5 or 25.0kHz
Programmable per Channel
Type of Modulation: FM
Frequency Source: Synthesiser
Antenna Connection: BNC, impedance 50 ohms
unbalance
Interface Connection: 9 pin D male plug
Power Supply: DC, regulated source
Voltage range 7.5 to 16 volts DC
Nominal 12V DC
Current consumption:
Standby
- 23mA (power save ON)
- 38 mA (power save OFF) max
Receiver
Sensitivity .25 uV VHF .35 μV UHF
•
Selectivity -60 dB @ 12.5 kHz
•
-70 dB @ 25 kHz
•
Intermodulation -65 dB
•
Spurious Response -70 dB
•
Intermodulation -65 dB
•
Irrigation
•
Audio Output 2.5 V @ 600 Ω
Dimensions
•
•
•
Security
30 x 62 x x118 mm
253grams
Die Cast Alloy
Utilities
• BNC Antenna VHF and UHF (both UHF bands)
• RS-232 Programming Cable
• Programming Software, Win XP
(backward compatible with SD-125)
Approvals
• CE
Transport
Accessories
DE-9 Connector
• FCC
Applications
•
•
•
•
•
•
•
•
•
•
•
•
•
Water/Waste Treatment Plants
Oil and Gas Field SCADA
Security/Alarm Systems
On Site Paging Systems
Gate ID Tag Systems
Automatic Vehicle Location
Remote Controls
Commercial Sign Control
Murphy/Kill Switches
Weather Monitoring Stations
Irrigation Systems
Emergency Call Boxes
Low Power Repeaters
www.maxon.com.au
T | +612 8707 3000 ● F | +612 8707 3001 ● E | sales@maxon.com.au ● 36A Gibson Avenue, Padstow NSW Australia 2211 ● www.maxon.com.au