Information and specifications page for the SR-170UOptions and Accessories: Please scroll down to view related items.


SR-170U UHF Repeater 5 Watts 450-490 MHz

The Maxon SR-170 Series Repeaters are durable, reliable and designed to meet the needs of a variety of communications applications in the VHF or UHF range. Fully Assembled, Installed and Tuned - Complete Repeater Ready to Use , just add a suitable duplexer (for best performance) and antenna and you're on the air.

The SR-170 Series Repeater utilizes the SD-170 Series Data Modules incorporating the most desirable features of the SD-170 in a low power, portable and reliable design. Adjustable transmit power settings provide the power needed on any job and the light weight and portability make it handy for remote or temporary locations. The SR-170 Series Repeaters can considerably extend the range of the portables in your system, making them ideal for use in places such as manufacturing plants, golf courses, parks, campgrounds and office buildings.
Whether implementing a new system or installing into an existing system, the Maxon family of Low Powered Repeaters has been the choice of users worldwide for over 25 years.


NOTE: THE MAXON SR-170 SERIES REPEATERS REQUIRE A QUALITY DUPLEXER FOR EFFICIENT OPERATION
OPERATING WITHOUT A DUPLEXER WILL SIGNIFICANTLY DEGRADE PERFORMANCE. MODELS AVAILABLE WITH DUPLEXER.

Maxon's 3 year warranty and FCC, European Conformity and Industry Canada Certification logos certifies that the electromagnetic interference, safety, manufacture and other quality parameters have been met by the Maxon SR-170U

Features:

  • Synthesized Frequency Tuning
  • 1 or 5 Watts RF Output
  • 142-174 MHz VHF  SR-170V W/O Duplexer
    142-174 MHz VHF  SR-170DV with Duplexer
    450-490 MHz UHF  SR-170U W/O Duplexer (Current Model listed on this page)
    450-490 MHz UHF  SR-170DU with Duplexer
  • Programmable up to 16 Channels
    Repeater programmed on one channel pair
  • 16 Channels (Dip Switch Select)
    (internal dip switch)
  • Programmable Wide/Narrow Band
  • Operates from 9V to 18 VDC
    (Power Supply Included)
  • CTCSS/DCS Encode/Decode
  • LED Status Indicator
    (Visible on internal Modules only)
  • DE-9/DB-9 Male Connector
  • 12.5/25 kHz Channel Spacing
  • Busy Channel Lockout
  • BNC Female Antenna Connector
    (on internal Modules only/SO-239s external)
  • Carrier Detect
  • 2-Tone Decode
  • Die-Cast Aluminum Housing
    (internal Modules only)
  • TX Time Out Timer
  • PC Programming via Software and Cable (optional)


Applications:

Farmers can grealty improve management and production in agriculture by extending communications range with the Maxon SR-170U

Factory and Building Maintenance
Hotels and Resorts
Golf Courses and Landscaping
Camp Sites / Nature Areas
Emergency / Disaster Local Comms
Isolated Locations
Auto Racing / Off-Road Racing
Underground or Tunnel Operations



General Specifications  
Parameter: Maxon VHF SD-171EX Maxon UHF SD-174EX
Frequency Range 142-174 MHz 450-490 MHz
Approvals RXUSD-171E RXUSD-174E
FCC Parts Parts  22, 74, 90, 210
Channels 1 to16 internal dip switch selectable
Channel Spacing 12.5 / 25 KHz
Channel Stepping 2.5, 5 & 6.25 KHz
Channel Spread 32 MHz 40 MHz
Frequency Stability ±5.0 ppm ±2.5 ppm
Operating Temperature -22° to +140° F (-30° to + 60° C)
Storage Temperature -40° to +176° F (-40° to + 80° C)
Input Voltage 9V - 18V DC,  12V nominal
LED Status Green - Receive or Decode /  Red - Transmit / Yellow - Busy
Current Drain @12V 65 mA Rx / 1.0A Tx Low / 2.0A Tx Hi
Lock Time <10ms
Operating Rating 35% @ Temp Range Listed
Dimensions [LWD] 4.6 x 2.4 x 1.4” (117x62x35 mm)
Weight 9.4 oz. (267 g.)
Materials Die-cast Aluminum
IC Certification Number 153B-SD-171E 153B-SD-174E
 
Receiver Specifications
Parameter: Maxon VHF SD-171EX Maxon UHF SD-174EX
Frequency Stability < ±5 PPM < ±2.5 PPM
Sensitivity (12dB SINAD) .30μV (12.5 kHz), 0.28μV (25 kHz)
Selectivity 65dB (12.5 kHz), 70dB (25 kHz)
Response Time <16ms
Spurious Emissions -57dB (9kHz-1GHz),-47dB (1GHz-4GHz)
Intermodulation -70dB
Audio Output 0.5 Watt
RX Hum/Noise -40dB (12.5 kHz), -40dB (25 kHz)
Squelch Attack Time <20/40 ms (RSSI/Analog)    <10/30ms (RSSI/Analog), ±20dB
Squelch Decay Time 5 ms Min., 20 ms Max
Spurious/Harmonic 65dB
Input Impedance 50 ohms
 
Transmitter Specifications
Parameter: Maxon VHF SD-171EX Maxon UHF SD-174EX
RF Power Output. 5/1 Watt Programmable
Frequency Deviation ±2.5, Min. ±1.9 kHz (12.5 kHz) / ±5.0, Min. ±3.8 kHz (25 kHz)
Modulation 11K0F3E / 16K0F3E
Spurious & Harmonics -36dBm
FM Hum & Noise 40dB (12.5 kHz), 40dB (25 kHz)
Adj. Channel Power 70dB (25 kHz), 60dB (12.5 kHz)
Audio Response +1, -3dB from 6dB per octave pre-emphasis and characteristic
300 ~ 3000 Hz
Modulation Sensitivity 100mV RMS (60% peak dev)


NOTE: Some features indicated by specifications listed are prohibited by FCC rule and are not available on models sold in the U.S. or its territories. Note: Features and specifications subject to change without notice.



Maxon SR-170U - 5 Watt UHF Repeater (450-490 MHz) w/o Duplexer CTCSS/DCS

  • $519.00


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Tags: SR-170U, UHF, portable, repeater, 5 watt, emergency, sd-170, sd171, sd174, maxon, SR-125, SD-125