MultecCommunications

RFWIZ.com

             Two-Way Radio Communications and Electronics Specialists


Navigation


 VERTEX
   STANDARD

 Vertex Standard Portable Two-Way Radio Selector Page Portables
 Vertex Standard Mobile Two-Way Radio Selector Page Mobiles
 Vertex Standard Repeater Selector Page Repeaters
 Vertex Standard System 600 and VX-1210 HF SSB Radios HF SSB
 Vertex Standard Product Line Photo and Links OptionAcc
 Vertex Standard Two-Way Radio Communications Product Line Photo Vertex
 Two-Way Radio Repair Page Repair
 Yeasu/Vertex Standard Antenna Rotators Rotators
 Vertex Standard VX-Trunk System VX-Trunk
 Vertex Standard Specials and New Products SPECIALS
 Vertex Standard Lowest Price Page LowPrice

 MIDLAND
 Midland Portable Two-Way Radio Selector Page Portables
 Midland Mobile Two-Way Radio Selector Page Mobiles
 Midland Repeater and Base Station Two-Way Radio Selector Page Base/Rptr

 MAXON
  LEGACY
 Maxon Legacy Portable Two-Way Radio Selector Page - Topaz Portables
 Maxon Legacy Mobile Two-Way Radio Selector Page - Topaz Mobiles
 Maxon Repeater Selector Page - Topaz Repeaters
 Maxon Base Station Selector Page - Topaz Bases
 Maxon Legacy Midland RF Data Link Selector Page - Topaz Data
 Radio Selection and Applications Help Page for Maxon, Legacy ProLine, TrueTalk and Midland - Topaz3 Radio Help

 ANTENNAS
 Austin Antenna Products and Information Austin
 Comtelco Two-Way Antenna Products Comtelco

 PAGERS

 SCA, Inc. Shimwa  Sceptar UHF/VHF Tone Pager  Sceptar UV
 SCA, Inc. Shimwa  ALPS VHFL Low Band Tone Pager  ALPS VHFL
 Pager Repair Page Repair

 TBA

 Police/Fire/EMS/Public Safety - Scanner Selector Uniden
 Scanner and Monitor Radio Antenna Information Antennas
 Scanner Repair Information Repair
 Scanner Frequency Selector Page - Scanner Frequencies ScanFreqs
 Scanner Frequency Links Page Links

 TBA

 CB Radio Selector Page Uniden
 Ranger Communications CB & Amateur Radio Selector Page Wilson
 CB Radio Repair Page Repair
 CB Radio Tune Up / Alignment Page / Peak Tune-Up
 CB & Amateur Radio Antenna Selector Page Antennas
 CB Radio Accessories Selector Page Parts/Acc

 TBA
 Wilson Antenna Selector Page Antennas
 Wilson Antenna Replacement Parts and Accessories Parts/Acc
 Francis CB antennas Selector Page Francis

 TBA
  Infopage

  MULTEC
 Multec Communications / www.rfwiz.com - How to Order Page FAQs
 Multec Communications / www.rfwiz.com - How to Order Page Ordering
 Multec Communications / www.rfwiz.com Contact
 Multec Communications / www.rfwiz.com - Friends & Members Links Page Links
 Multec Communications / www.rfwiz.com - Table of Contents Contents
 Multec Communications / www.rfwiz.com - Search Page SEARCH
 Multec Communications / www.rfwiz.com - Misc and Used Page Misc/Used
 Multec Communications / www.rfwiz.com - Terms and Conditions Returns
 Multec Communications / www.rfwiz.com - Terms and Conditions TermsCond
 

 

 
Maxon Logo
Midland Two-Way Radio
SD-271 V2
SD-274 U1
SD-274 U2
SD-274 U3

Maxon SD-270 Series Data Telemetry Radios Synthesized RF Data
Link Radio Telemetry Module

SD-270 Series SD-271 V2 SD-274 U1 SD-274 U2 SD-274 U3 Maxon Synthesized RF Data Link Module
SD-270 Series SD-271 V2 SD-274 U1 SD-274 U2 SD-274 U3 Maxon Synthesized RF Data Link Module 3-Year Warranty

For Guaranteed Lowest Pricing...

Download

Email

Call


Includes: FREE Programming

Lowest Price Guarantee
Visa, MasterCard, Discover and American Express Accepted
***Up to 16 Channels Programmed FREE***

$ Qty
VHF 136-174 MHz
Maxon SD-271V2
12.5/25 KHz Ch Spacing
16 Channel - 1/5 Watts

$ Qty
UHF 450-490 MHz
Maxon SD-274U3
12.5/25 KHz Ch Spacing
16 Channel - 1/5 Watts

$ Qty
UHF 400-440 MHz
Maxon SD-274U1
12.5/25 KHz Ch Spacing
16 Channel - 1/5 Watts

$ Qty
UHF 430-470 MHz
Maxon SD-274U2
12.5/25 KHz Ch Spacingg
16 Channel - 1/5 Watts

SD-270 Series Application Setup
SD-270 Series SD-271 V2 SD-274 U1 SD-274 U2 SD-274 U3 Maxon Synthesized RF Data Link Module Maxon Synthesized RF Data Link Module Hoover Dam
Maxon Wireless Data Link Modules are FCC certified for use in the U.S.A. and its possessions. Maxon's SD-270 Series Data Modules are manufactured under ISO 9002: 2000 quality standards and are IC approved for sale in Canada.


Tough Conditions are No Problem for Maxon SD-271 or SD-274 RF Data Modules
Tough Conditions?
No Problem for Maxon RF Data Link Modules
 

Check Out the SR-170 Repeater
Built using SD-170 Series Data Radios

CLICK FOR SR-170 SERIES REPEATERS


Maxon America, Inc. Logo for SD-270 Series SD-271 V2 SD-274 U1 SD-274 U2 SD-274 U3 Maxon Synthesized RF Data Link Module


The Maxon SD-270 Series of radios are durable, reliable and designed to meet the needs for a variety of wireless applications. Include the optional GMSK (9600 Baud Rate) or the 4FSK (19200 Baud Rate) modem boards to add 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 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:

  • Synthesized Frequency Tuning
  • 1 or 5 Watts RF Output
  • 136-174 MHz VHF - V2
    400-440 MHz UHF - U1
    430-470 MHz UHF - U2
    450-490 MHz UHF - U3
  • Programmable up to 16 Channels
  • 16 Channels (Dip Switch Select)
  • Programmable Wide/Narrow Band
    12.5/25 kHz Channel Spacing
  • Operates from 9V to 18 VDC
  • CTCSS/DCS Encode/Decode
  • Modem Options * (GMSK/4FSK)
    ACC-213 GMSK 9600 Baud
    ACC-214 4FSK 19200 Baud
  • Supports 19200 bps Data Rate
  • External Software Channel Steering
  • 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)

DON'T SEE WHAT YOU NEED??
Got a Question?

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


DE-15 Female Connector
(Pin Outs)

Maxon SD-125 series RF Data Link Module CTCSS Encoder / Decoder
 

  • Improved multiple input/output access
  • Industry standard DB-15 male plug for
    easy interface.

SD-271/SD-274 Connector View

SD-270 Series SD-271 V2 SD-274 U1 SD-274 U2 SD-274 U3 Maxon Synthesized RF Data Link Module Connector View

  • Accepts standard DE-15 male plug
  • BNC  female connector for external antenna, rubber duck or higher gain directional for greater performance.

SD-271/SD-274 Case Layout

Maxon SD-271 and SD-274  series RF Data Link Module Case diagram
 

Maxon SD-271 and SD-274  series RF Data Link Module Maxon SD-271 and SD-274  series RF Data Link Module ACC-213 GMSK and ACC-214 4FSK accessory boards
ACC-213 GMSK     ACC-214 4FSK

MODEM MANUAL

Check Out Maxon's Other
Data Telemetry Radios:

SD-125EL Series  SD-170EL Series
SD-170EX Series  TD-1500  TD-2400MD


Maxon SD-270 Series Spec Sheet

 Optional Accessories - Antennas
Model # Description Price

 TB-150BN  6" VHF 148-174 MHz Antenna w/BNC
   $19.00 
 TB-450BN  6" UHF 440-470 MHz Antenna w/BNC
   $19.00 
 Optional Accessories - Signaling
Model # Description Price

 ACC-213 GMSK 9600 Baud Modem
9600 Baud @ 25 kHz, 4800 Baud @ 12.5 kHz
   $79.00 
 ACC-214 4FSK 19200 Baud Modem
19200 Baud @ 12.5/25 kHz, 9600 Baud @12.5 kHz
19200 baud rate @ 12.5 kHz limited to 4,000 bytes non-packet data
   $79.00 
 Service Equipment - Programming / Manuals
 ACC-270  Programming/Tuning Software 12.5/25 kHz

   $29.00 

 ACC-270N  Programming/Tuning Software 12.5 kHz Only

   $29.00 

 ACC-2016E  Programming Cable (USB)

   $40.00 

 ACC-2270  RS232 Serial Interface/Alignment PCB w/Cable
   $69.00 
 SVM-270  SD-270 Series Service Manual
   $20.00 
 Heat Sink - Cooling / Extended Duration
 ACC-HSNF  Aluminum Black Anodized Pin Style-Flat Mount
 $109.00 
 ACC-HSWFL  Aluminum Finned w/Cooling Fan Mounted on
 Radio Lid
 $109.00 
     Wt    $ Qty
 

 
General Specifications  
  Maxon VHF SD-271V2 Maxon UHF SD-274U1/2/3
Frequency Range 136-174 MHz 450-490 MHz U3
430-470 MHz U2
400-440 MHz U1
FCC ID Number UU3FC302VD UU3FC302U2 (U2)
FCC Parts Parts  22, 74, 90, 210
Channels 1 to16 dip switch selectable
Channel Spacing 12.5/25 KHz
Channel Stepping

2.5, 5, 6.25 KHz

Channel Spread 38 MHz 40 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

9-18 V DC, 12V nominal

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-271V2 Maxon UHF SD-274U1/2/3
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-271V2 Maxon UHF SD-274U1/2/3
RF Power Output.

5~1 Watt Programmable

Frequency Stability > 5 PPM > 2.5 PPM
Modulation 11K0F3E / 16K0F3E
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)

Heat Sink

ACC-HSNF Aluminum Black Anodized Pin Style-Flat Mount for SD-271 & SD-274 Data Radio
ACC-HSNF Aluminum Black Anodized Pin Style-Flat Mount
CLICK IMAGE TO OPEN

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
 


PayPal Acceptance Mark

Visa, MasterCard, Discover and American Express Accepted





Our e-commerce system uses a XRamp
SSL Secure Site protected through
www.justaddcommerce.net


Terms & Conditions
Table of Contents
Search

Copyright 2000-2018  Multec Communications / rfwiz.com - All rights reserved. Do not duplicate without the express written consent of Multec Communications.
 
Shipping & Mail only - Note: returns require a RA# - see RETURNS  before shipping
Address...                      Note: warranty repairs only - see REPAIRS  before shipping

Multec Communications
319 Centre Ave.  #166
Rockland, MA  U.S.A.   02370-2613
781 294-4992 main
781 527-5004 fax (include return email w/fax)


Main 781 294-4992
- calling hours 2-5 EST  Monday-Friday for questions and tech support only...."Out of Area", "Restricted" and "Private Caller" calls may be blocked to avoid phone spam. Note: The main line is often very busy and voice mail is not available. Please place orders online using our secure e-commerce system. Save time...order online!

If you have questions about ordering please see  ordering information page  first. Phone orders slow processing time, increase inaccuracies and are not recommended.

Email questions or comments at - Email

Note: Not responsible for typographical, photographic or pricing errors.
         All pricing and specifications subject to change without notice.