Description

Information and specifications page for the SD-174EL Options and Accessories: Please scroll down to view related items.

SD-174EL UHF 450-490 MHz

The Maxon SD-170EL Series of radios are durable, reliable and designed to meet the needs for a variety of wireless applications. Include the optional FFSK or GMSK modem boards to add even more diversity to this cost effective radio. The modules incorporate the popular mechanical footprint, DE-15 female connector and BNC antenna connection.

The modules incorporate the most requested mechanical footprint and BNC antenna connection. Adjustable transmit power settings from one to five watts provides the power needed on any job and the tri-color 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, European Conformity and Industry Canada Certification logos certifies that the electromagnetic interference, safety, manufacture and other quality parameters have been met by the Maxon SD-174EL

Features:

SD-170E Series User Manual

Synthesized Frequency Tuning

1 or 5 Watts RF Output

142-174 MHz VHF SD-171EL
450-490 MHz UHF SD-174EL (Current Model listed on this page)

Programmable up to 16 Channels

16 Channels (Dip Switch Select)
(internal dip switch)

Programmable Wide/Narrow Band

Operates from 9V to 18 VDC

CTCSS/DCS Encode/Decode

LED Status Indicator

DE-15 Female Connector

9-PIN Version Available - SD-174EX

12.5/25 kHz Channel Spacing

Carrier Detect

Busy Channel Lockout

BNC Female Antenna Connector

Modem Options* (GMSK/FFSK)
Internal Mounting for Optional Modem Boards
*ACC-513E GMSK 9600 Baud
*ACC-514E FFSK 4800 Baud

Carrier Detect

2-Tone Decode

Die-Cast Aluminum Housing

TX Time Out Timer

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-171EL Maxon UHF SD-174EL

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-171EL Maxon UHF SD-174EL

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-171EL Maxon UHF SD-174EL

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 SD-174EL - UHF 450-490 MHz Data Telemetry Radio CTCSS/DCS DE-15 & Modem(option)

Brand: Maxon America, Inc.
Product Code: SD-174EL
Availability: In Stock

$228.00
2 or more $194.00
20 or more $181.00

Available Options

Radio

No Programming (user will program)

Requires Programming $5.00 per Channel additional charge invoiced separately (CHANNEL /CODE PLUG INFO REQUIRED - below or email)

Textarea

Qty

General Specifications
Parameter:	Maxon VHF SD-171EL	Maxon UHF SD-174EL
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-171EL	Maxon UHF SD-174EL
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-171EL	Maxon UHF SD-174EL
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)

Maxon SD-174EL - UHF 450-490 MHz Data Telemetry Radio CTCSS/DCS DE-15 & Modem(option)

$228.00

Available Options

Related Products