Options and Accessories: Please scroll down to view related items.
SD-171EL VHF 142-174 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.
Features:
- SD-170E Series User Manual
- Synthesized Frequency Tuning
- 1 or 5 Watts RF Output
- 142-174 MHz VHF SD-171EL (Current Model listed on this page)
450-490 MHz UHF SD-174EL - 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-171EX
- 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-171EL - VHF 142-174 MHz Data Telemetry Radio CTCSS/DCS DE-15 & Modem(option)
- Brand: Maxon America, Inc.
- Product Code: SD-171EL
- Availability: In Stock
-
$228.00
-
- 2 or more $189.00
- 20 or more $175.00
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Tags: SD-171EL, SD-174EL, Data, Radio, Telemetry, sd-170, sd171, sd174, maxon