


SD-674DE U2 UHF 410-470 MHz
The Maxon SD-671DE 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.
Features:
- SD-670D Series User Manual
- NEW Latest Model SD-670DE Series DMR Shipped when ordering Radio
- Modem Already Integrated into Radio
- DMR Tier II TDMA
- Power Output Programmable Per Channel:
10/5/1W for VHF, 5/1W for UHF - 410-470 MHz UHF - V2 (Current Model listed on this page)
150-174 MHz VHF - U2 - 32 Channels (Dip Switch)
- Programmable Wide/Narrow Band
12.5/25 kHz Channel Spacing in Analog - 9V to 24V DC Operation
- RF Communication Data Speed 9600bps (OTA)
- Digital Voice uses AMBE+2 Voice Codec
- Remote Channel Steering Capable
- Built in AT Command
- AES-256-Bit Encryption (AES-CTR)
- 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)
- Call for Assistance
- Pay using PayPal:
no PayPal account needed
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

General Specifications | ||
Parameter: | Maxon VHF SD-671DE V2 | Maxon UHF SD-674DE U2 |
Frequency Range | 150-174 MHz | 410-470 MHz U2 |
FCC ID Number | TBA | TBA |
FCC Parts | Parts 22, 74, 90, 210 | |
Channels | 1 to 32 dip switch selectable | |
Channel Spacing | 12.5/25 KHz Analog |
|
Channel Stepping |
2.5, 5, 6.25 KHz |
|
Channel Spread | 24 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 |
9-24 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-671DE V2 | Maxon UHF SD-674DE 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-671DE V2 | Maxon UHF SD-674DE U2 |
|
RF Power Output. |
10/5/1W VHF ~ 5/1W UHF 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 - SD-670DE Series UHF DMR 410-470 MHz Digital Data Telemetry Radio SD-674DE U2
- Brand: Maxon America, Inc.
- Product Code: SD-674D U2
- Availability: In Stock / Usually ships in 2-4 business days
-
$352.00
-
- 2 or more $259.00
- 20 or more $239.00
Available Options
Related Products
Maxon SD-125EL V2 - SD-125E Series VHF 148-174 MHz Data Telemetry Radio w/DE-9 Pin Male
Options and Accessories: Please scroll down to view related items. SD-125EL V2 148-17..
$228.00
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 "rubbe..
$35.00
Maxon SD-125EL U2 - SD-125E Series UHF 440-470 MHz Data Telemetry Radio w/DE-9 Pin Male
Options and Accessories: Please scroll down to view related items. SD-125EL U2 440-47..
$228.00
Maxon SD-125EL U1 - SD-125E Series UHF 400-430 MHz Data Telemetry Radio w/DE-9 Pin Male
Options and Accessories: Please scroll down to view related items. SD-125EL U1 400-43..
$228.00
Maxon G8BI Chrome Mag Mount 3-1/4” Base w/12' coax & BNC or PL-259 Connector
Maxon G8BI Magnetically Mounted NMO 3-1/4” Diameter Base Chrome w/12' coax & BNC cable Connector..
$69.00
Maxon G8BI20 Chrome Mag Mount 3-1/4” Base w/20' coax & BNC or PL-259 Connector
Maxon G8BI20 Magnetically Mounted NMO 3-1/4” Base Chrome w/20' coax & BNC cable Connector. Requi..
$89.00
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..
$22.00
Maxon SD-274 U1 - UHF 400-440 MHz Data Telemetry Radio CTCSS/DCS DE-15 & Modem(option)
Options and Accessories: Please scroll down to view related items. SD-274 U1 UHF 400-..
$0.00
Maxon SD-274 U2 - UHF 430-470 MHz Data Telemetry Radio CTCSS/DCS DE-15 & Modem(option)
Options and Accessories: Please scroll down to view related items. SD-274 U2 UHF 430-..
$0.00
Maxon SD-274 U3 - UHF 450-490 MHz Data Telemetry Radio CTCSS/DCS DE-15 & Modem(option)
Options and Accessories: Please scroll down to view related items. SD-274 U3 UHF 450-..
$272.00
Maxon SD-671D V2 - SD-670DE Series VHF DMR 150-174 MHz Digital Data Telemetry Radio SD-671DE V2
Options and Accessories: Please scroll down to view related items. SD-671DE V2 VHF 150-174 MHz The..
$368.00
Maxon SVM-670 - SD-670D Series Service Manual
A .pdf format service manual on CD. Contains all part numbers, schematics, layouts, exploded views a..
$0.00
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) & ..
$35.00
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..
$35.00
Maxon SD-125V2 - SD-125 Series VHF 148-174 MHz Data Telemetry Radio w/DB-9 Pin Male
Options and Accessories: Please scroll down to view related items. SD-125V2 148-174 M..
$0.00
Maxon SD-125U1 - SD-125 Series UHF 400-430 MHz Data Telemetry Radio w/DB-9 Pin Male
Options and Accessories: Please scroll down to view related items. SD-125U1 400-430 M..
$0.00
Maxon SD-125U2 - SD-125 Series UHF 440-470 MHz Data Telemetry Radio w/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 Data Telemetry Radio w/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 Data Telemetry Radio w/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 Data Telemetry Radio w/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 Data Telemetry Radio w/DB-15 Pin Female
Options and Accessories: Please scroll down to view related items. SD-164 450-490 MHz..
$0.00
Maxon SD-125EU1 - SD-125E Series UHF 400-430 MHz DE-9 Pin Male Data / Telemetry Radio
Options and Accessories: Please scroll down to view related items. SD-125EU1 400-430 ..
$228.00
Maxon SD-125EU2 - SD-125E Series UHF 440-470 MHz DE-9 Pin Male Data / Telemetry Radio
Options and Accessories: Please scroll down to view related items. SD-125EU2 440-470 ..
$228.00
Maxon SD-125EV2 - SD-125E Series VHF 148-174 MHz DE-9 Pin Male Data / Telemetry Radio
Options and Accessories: Please scroll down to view related items. SD-125EV2 148-174 ..
$228.00
Maxon SD-125EL U2 - SD-125E Series UHF 440-470 MHz Data Telemetry Radio w/DE-9 Pin Male OPEN BOX NEW
Options and Accessories: Please scroll down to view related items. SD-125EL U2 440-47..
$0.00
Midland 70-201BD - VHF 148-174 MHz Data Telemetry Radio w/DB-9 Pin Male
Options and Accessories: Please scroll down to view related items. Midland 70-201BD 1..
$0.00
Midland 70-101BD - UHF 440-470 MHz Data Telemetry Radio w/DB-9 Pin Male
Options and Accessories: Please scroll down to view related items. Midland 70-101BD 4..
$0.00
Maxon ACC-6016E - SD-670 Series 15-Pin Male to USB PC Programming Cable
PC programming cable 15-Pin Male D-Type to USB for SD-670 series Data Radios. Requires ACC-670/N sof..
$49.00
Tags: data, digital, dmr, maxon, radio, sd-674, vhf, sd674, sd-674d, sd674d, sd-670, sd670, sd-674de, sd-671de