Options and Accessories: Please scroll down to view related items.
SD-171EX VHF 142-174 MHz
The Maxon SD-170EX Series of radios
are durable, reliable and designed to meet the needs for a variety of
wireless applications in VHF or UHF frequencies..
The modules incorporate the most requested mechanical footprint,
DE-9 male connector,
and BNC antenna connection. Adjustable transmit power settings provides
the power needed on any job and the tri-color LED indicator gives
instant on-sight status of the radios operation. The die cast aluminum
cabinet/lid provides resistance to RF interference and gives exceptional
environmental durability in the most extreme conditions. The SD-170EX
can also be configured with POCSAG for paging applications.
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-170EX Series User Manual
- Maxon's Complete Product Catalog.pdf
- Synthesized Frequency Tuning
- 1 or 5 Watts RF Output
- 142-174 MHz VHF SD-171EX (Current Model listed on this page)
- 450-490 MHz UHF SD-174EX
- 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-9/DB-9 Male Connector
- Original 15-PIN Version - SD-171EL
- 12.5/25 kHz Channel Spacing
- Busy Channel Lockout
- BNC Female Antenna Connector
- Carrier Detect
- 2-Tone Decode
- Die-Cast Aluminum Housing
- TX Time Out Timer
- PC Programming via Software and Cable (Recommended Accessory)
- Programming Not Guaranteed if Requested (unknown parameters/settings/offsets/channels/
PL codes/internal mods may be present - Recommend Programming Software and Cable) - 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-171EX | Maxon UHF SD-174EX |
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-171EX | Maxon UHF SD-174EX |
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-171EX | Maxon UHF SD-174EX |
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-171EX - VHF 142-174 MHz Data Telemetry Radio w/DE-9 pin Male CTCSS/DCS
- Brand: Maxon America, Inc.
- Product Code: SD-171EX
- Availability: In Stock
-
$228.00
-
- 2 or more $194.00
- 20 or more $181.00
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Tags: SD-171EX, SD-174EX, Data, sd-170ex, sd-170e, sd-170, sd170, sd171, sd174, maxon, db-9, de-9, db9, de9, sd170e, sd170ex