The Maxon SD-670D Series Digital Data Radio Logo with model and frequency specificationsThe Maxon SD-670D Series Digital Data Radios are NEW!

Information and specifications page for the SD-674D U2Options and Accessories: Please scroll down to view related items.



SD-674D U2 UHF 410-470 MHz
The Maxon SD-671D DMR Digital Radio Series of radios are durable, reliable and designed to meet the needs for a variety of wireless applications. The included Digital Vocoder (AMBE with AMBE++ Voice Compression Algorithm) allows 9600 Baud Rate capability adding even more diversity to this cost effective radio.

The modules incorporate the most requested mechanical footprint and BNC antenna connection. Transmit power settings from one to five watts provide the power needed on any job and the LED indicator gives instant on-sight status of the radios operation. Combine that with low current drain and fast transmitter/receiver attack times for operation in the harshest of system demands. The die cast aluminum cabinet/lid provides resistance to RF interference; and gives exceptional environmental durability in the most extreme conditions.

Whether implementing a new system or installing into an existing system, the Maxon family of data telemetery radios have been the choice of OEM and end-users worldwide for over 25 years.

Maxon's 3 year warranty and FCC Certification logo certifies that the electromagnetic interference, safety, manufacture and other quality parameters have been met by the Maxon SD-674D U2This diagram shows a typical water control system using data radios like the Maxon SD-674D U2

Features:

  • DMR Tier II TDMA
  • 1 or 5 Watts RF Output
  • 136-174 MHz VHF - V2
    410-470 MHz UHF
    - U2 (Current Model listed on this page)
  • Programmable up to 8 Channels
  • 8 Channels (Dip Switch Select)
  • Programmable Wide/Narrow Band
    12.5/25 kHz Channel Spacing in Analog
  • Operates from 12V to 24 VDC
  • Remote Channel Steering Capable
  • Built in AT Command
  • 6 Programmable Squelch Levels
  • Variable Speaker Output
  • LED Status Indicator
  • Die-Cast Aluminum Housing
  • Time-Out-Timer Function
  • DB-15 Female Connector
  • PC Programming via Software and Cable (optional)

    Applications:
    Water/Waste Treatment Plants
     Oil and Gas Field SCADA
     Security/Alarm System
     Gate Systems
     Remote Controls
     Commercial Sign Control
     Automatic Vehicle Location
     Murphy/Kill Switches
     Weather Monitoring
     Irrigation Systems
     Emergency Call Boxes
     Low Power Repeaters


    Maxon's line of digital and analog data radios solve many water management problems


General Specifications  
Parameter: Maxon VHF SD-671D V2 Maxon UHF SD-674D U2
Frequency Range 136-174 MHz 410-470 MHz U2
FCC ID Number TBA TBA
FCC Parts Parts  22, 74, 90, 210
Channels 1 to 8 dip switch selectable
Channel Spacing 12.5/25 KHz Analog
Channel Stepping

2.5, 5, 6.25 KHz

Channel Spread 38 MHz 60 MHz
Frequency Stability

<±5.0 ppm

<±2.5 ppm

Operating Temperature

-22° to +140° F (-30° to + 60° C)

LED Status

Green - Receive / Red - Transmit

Input Voltage

12-24 V DC

Current Drain @9V

TBA

Current Drain @12V 65 mA Standby / 2.0A Tx Hi / 1.0A Tx Low
Current Drain @18V

TBA

Tx Duty Cycle

35% @ Temp Range Listed/Tx [max settings]

Dimensions [LWH]

4.6 x 2.4 x 1.4” (117x62x35 mm)

Weight

9.4 oz. (267 g.)

Materials

Die-cast Aluminum

IC Certification Number

TBA

TBA

 
Receiver Specifications
  Maxon VHF SD-671D V2 Maxon UHF SD-674D U2
Frequency Stability <±5 PPM <±2.5 PPM
Sensitivity (12dB SINAD) <-119dB Extreme <-115dB <-119dB Extreme <-115dB
Sensitivity (20dB Quieting) TBA
Selectivity >60dB (25 KHz) / >50dB (12.5 KHz)
Spurious Rejection

> -70dB

Intermodulation

> -65dB

Audio Output

0.5 Watt @ 8 ohms

Audio Distortion

< 5% @ 1 KHz

Hum & Noise

<5%

Input Impedance 50 ohms
 
Transmitter Specifications
  Maxon VHF SD-671D V2 Maxon UHF SD-674D U2
RF Power Output.

5~1 Watt Programmable

Frequency Stability > ±5 PPM > ±2.5 PPM
Modulation 11K0F3E / 16K0F3E Analog
Spurious & Harmonics -36dBm
FM Hum & Noise

>40dB (12.5 kHz), >45dB (25 kHz)

TX Attack Time <5 ms
Adj. Channel Power -70dB (25 kHz), -65dB (12.5 kHz)
Audio Response 300Hz - 3 kHz +1, -3dB (25 kHz) / 300Hz - 2.55 kHz +1, -3dB (12.5 kHz)


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 SD-674D U2 - UHF DMR 410-470 MHz Digital Data Radio DE-15 pin

  • $229.00


  • 10 or more $215.00
  • 20 or more $110.00

Available Options


Related Products

Maxon SD-125EL V2 -  VHF 148-174 MHz DE-9 Pin Male

Maxon SD-125EL V2 - VHF 148-174 MHz DE-9 Pin Male

Options and Accessories: Please scroll down to view related items. SD-125EL V2 148-17..

$175.00 $194.00

Maxon TB-450BN - UHF (400-512 MHz) 6" Uncut Antenna, BNC

Maxon TB-450BN - UHF (400-512 MHz) 6" Uncut Antenna, BNC

UHF (400-512 MHz) 6" Uncut Antenna, BNC male connector for use with any Data Radio. This is a "rub..

$19.00

Maxon SD-125EL U2 -  UHF 440-470 MHz DE-9 Pin Male

Maxon SD-125EL U2 - UHF 440-470 MHz DE-9 Pin Male

Options and Accessories: Please scroll down to view related items. SD-125EL U2 440-47..

$175.00 $194.00

Maxon SD-125EL U1 -  UHF 400-430 MHz DE-9 Pin Male

Maxon SD-125EL U1 - UHF 400-430 MHz DE-9 Pin Male

Options and Accessories: Please scroll down to view related items. SD-125EL U1 400-43..

$175.00 $194.00

Maxon G8BI Mag Mount Base w/12' coax & BNC Connector

Maxon G8BI Mag Mount Base w/12' coax & BNC Connector

Maxon G8BI Magnetically Mounted NMO Base w/12' coax & BNC cable Connector. Requires flat magneti..

$39.00

Maxon G8BI20 Mag Mount Base w/20' coax & BNC Connector

Maxon G8BI20 Mag Mount Base w/20' coax & BNC Connector

Maxon G8BI20 Magnetically Mounted NMO Base w/20' coax & BNC cable Connector. Requires flat magne..

$49.00

Maxon QW450 UHF 1/4 Wave Antenna (NMO Type)

Maxon QW450 UHF 1/4 Wave Antenna (NMO Type)

Maxon QW450 UHF 1/4 Wave Antenna (NMO Type) for use with with G8BI or G8BI20 magnetic bases (see bel..

$14.00

Maxon ACC-2016E - SD-170EL SD-270 SD-670 Series PC Programming Cable

Maxon ACC-2016E - SD-170EL SD-270 SD-670 Series PC Programming Cable

PC programming cable for SD-171EL / SD-174EL and the SD-271 / SD-274 series Data Radios. Requires AC..

$40.00

Maxon SD-274 U1  -  UHF 400-440 MHz CTCSS/DCS DE-15 & Modem(option)

Maxon SD-274 U1 - UHF 400-440 MHz CTCSS/DCS DE-15 & Modem(option)

Options and Accessories: Please scroll down to view related items. SD-274 U1 UHF 400-..

$199.00

Maxon SD-274 U2  -  UHF 430-470 MHz CTCSS/DCS DE-15 & Modem(option)

Maxon SD-274 U2 - UHF 430-470 MHz CTCSS/DCS DE-15 & Modem(option)

Options and Accessories: Please scroll down to view related items. SD-274 U2 UHF 430-..

$199.00

Maxon SD-274 U3  -  UHF 450-490 MHz CTCSS/DCS DE-15 & Modem(option)

Maxon SD-274 U3 - UHF 450-490 MHz CTCSS/DCS DE-15 & Modem(option)

Options and Accessories: Please scroll down to view related items. SD-274 U3 UHF 450-..

$199.00

Maxon SD-671D V2  -  VHF DMR 136-174 MHz Digital Data Radio DE-15 pin

Maxon SD-671D V2 - VHF DMR 136-174 MHz Digital Data Radio DE-15 pin

Options and Accessories: Please scroll down to view related items. SD-671D V2 VHF 136-174 MHz The ..

$229.00

Maxon SVM-670 - SD-670D Series Service Manual

Maxon SVM-670 - SD-670D Series Service Manual

A .pdf format service manual on CD. Contains all part numbers, schematics, layouts, exploded views a..

$22.00

Maxon ACC-670 - SD-670D Series Programming Software (W/N)

Maxon ACC-670 - SD-670D Series Programming Software (W/N)

Programming Software for SD-671D V2 & SD-674D U2 Series Data Radios. Will program Wide(W) & ..

$29.00

Maxon ACC-670N - SD-670D Series Programming Software (N)

Maxon ACC-670N - SD-670D Series Programming Software (N)

Programming Software for SD-671D V2 & SD-674D U2 Series Data Radios. Will program Narrow(N) 12.5..

$29.00

Maxon SD-125V2 -  VHF 148-174 MHz DB-9 Pin Male

Maxon SD-125V2 - VHF 148-174 MHz DB-9 Pin Male

Options and Accessories: Please scroll down to view related items. SD-125V2 148-174 M..

$0.00

Maxon SD-125U1 -  UHF 400-430 MHz DB-9 Pin Male

Maxon SD-125U1 - UHF 400-430 MHz DB-9 Pin Male

Options and Accessories: Please scroll down to view related items. SD-125U1 400-430 M..

$0.00

Maxon SD-125U2 -  UHF 440-470 MHz DB-9 Pin Male

Maxon SD-125U2 - UHF 440-470 MHz DB-9 Pin Male

Options and Accessories: Please scroll down to view related items. SD-125U2 440-470 M..

$0.00

Maxon SD-171 -  VHF 148-174 MHz DB-15 Pin Female

Maxon SD-171 - VHF 148-174 MHz DB-15 Pin Female

Options and Accessories: Please scroll down to view related items. SD-171 148-174 MHz..

$0.00

Maxon SD-174 -  UHF 450-490 MHz DB-15 Pin Female

Maxon SD-174 - UHF 450-490 MHz DB-15 Pin Female

Options and Accessories: Please scroll down to view related items. SD-174 450-490 MHz..

$0.00

Maxon SD-161 -  VHF 148-174 MHz DB-15 Pin Female

Maxon SD-161 - VHF 148-174 MHz DB-15 Pin Female

Options and Accessories: Please scroll down to view related items. SD-161 148-174 MHz..

$0.00

Maxon SD-164 -  UHF 450-490 MHz DB-15 Pin Female

Maxon SD-164 - UHF 450-490 MHz DB-15 Pin Female

Options and Accessories: Please scroll down to view related items. SD-164 450-490 MHz..

$0.00

Tags: data, digital, dmr, maxon, radio, sd-674, vhf, sd674, sd-674d, sd674d, sd-670