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SD-271 V2 VHF 136-174 MHz
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:
- SD-270 Series User Manual
- FCC Certification Rated for US only (Not available in Canada)
- Synthesized Frequency Tuning
- 1 or 5 Watts RF Output
- 136-174 MHz VHF - V2 (Current Model listed on this page)
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)
- 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-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) |
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-271 V2 - VHF 136-174 MHz Data Telemetry Radio CTCSS/DCS DE-15 & Modem(option)
- Brand: Maxon America, Inc.
- Product Code: SD-271 V2
- Availability: In Stock
-
$228.00
-
- 2 or more $219.00
- 20 or more $189.00
Available Options
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Tags: SD-271 V2, VHF, CTCSS, DCS, Modem, de-15, db-15, db15, de15, sd-270, sd271, sd270, maxon, data, radio