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Home Products Sub-GHz Range 335 - 360 MHz (DL348)

335 – 360 MHz Embedded OFDM Transceiver (DL348-25)

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DL348-25 is a best-in-class, high performance embedded OFDM radio transceiver specially optimized for the Federal and MilCom frequency band 335 MHz ~ 360 MHz. It features high 30 Mbps data throughput with up to 1 W Tx power, better Rx sensitivity and high noise immunity. DL348-25 features Doodle Labs’ proprietary PrismTM hybrid heterodyne technology with advanced filtering and noise reduction techniques for high interference immunity and long range applications. The DL348-25 has demonstrated the ability to provide high throughput even in extremely noisy environments. The rugged construction of DL348-25 makes it ideal for deploying in Military grade equipment.

DLM108 Front_Edited

DL348-25 maintains distortion free signal at higher modulation rates and high power to maintain low packet errors and maximize data throughput. The design uses highly linear power amplifiers to deliver maximum power even at 64 QAM radio modulations while maintaining low distortion EVM (Error Vector Magnitude). It employs fine tuned Low Noise Amplifier on the the receive chain to obtain better Rx sensitivity and high SNR. DL348-25 is specially designed to deliver best performance in long-range applications. The Industrial/Military grade design & high resilience to RF surges & ESD makes it ideal for deploying in harsh environments.

 

Key Features

  • Best-in-class OFDM broadband radio technology ensures high throughput, spectral efficiency, advanced RF interference mitigation and resistance to multi-path delays for Near Line of Sight (NrLOS) performance.
  • Doodle Labs’ proprietary PrismTM hybrid heterodyne technology with advanced filtering and noise reduction techniques to achieve high Interference Immunity.
  • Operation in the 335 - 360 MHz Milcom and Federal band.
  • Up to 30 Mbps data throughput.
  • Software configurable high Tx power up to +30 dBm (1 W) for long-range coverage.
  • Integrated LNA to achieve better Rx sensitivity and SNR. 
  • High desensitization capability for out of band interfering signals.
  • Distortion free signal (low EVM) to maintain lowest packet errors to maximize data throughput at higher data modulation.
  • 128 bit AES encryption for over the air data security
  • Supports software configurable 5/10/20 MHz Channel Bandwidth to maximize spectrum efficiency.
  • mini-PCI host interface
  • Proven compatibility with dd-wrt and many other 3rd party Wireless Router Operating Systems
  • Supported by open source MadWiFi Linux kernel drivers
  • Military grade construction ensures durability in harsh operating environments
  • Two MMCX connectors provide flexibility in system design for antenna diversity or Internal/external antenna selection options

 

Technical Specifications

RADIO SYSTEM INFORMATION

Model No. and Product Status

DL348-25. Available Now. 

Radio Frequency Range

335 MHz - 360 MHz.

RF Modulation

OFDM with 64 QAM, 16 QAM, QPSK, and BPSK. DSSS with CCK modulatons. Self-adapting modulation to maintain optimal link performance under different environmental conditions.

Radio Tx power

Software configurable from 12 dBm to 30 dBm

Channel Bandwidth

Software configurable 5, 10, and 20 MHz

Data Throughput

Channel Bandwidth

TCP/IP (Mbps)

UDP (Mbps)

5 MHz

6

8

10 MHz

12

15

20 MHz

24

30

Data Security

128 bit AES Encryption

MAC Protocol

CSMA/CA

Wireless Error Correction

FEC, ARQ

Host Interface

32 bits, 33 MHz miniPCI Type III A. Atheros AR5414A MAC/BB Controller.

Host Driver Software

Open Source MADWiFi for Linux

Tx/Rx Specification

Radio Data Rate

Modulation

Max Tx Power

(± 2 dBm)

Rx Sensitivity

(± 2 dBm)

5 MHz Channel Width

1.5 Mbps

OFDM/BPSK

30 dBm

-96 dBm

6 Mbps

OFDM/16QAM

30 dBm

-86 dBm

13.5 Mbps

OFDM/64QAM

23 dBm

-76 dBm

10 MHz Channel Width

3 Mbps

OFDM/BPSK

30 dBm

-93 dBm

12 Mbps

OFDM/16QAM

30 dBm

-83 dBm

27 Mbps

OFDM/64QAM

23 dBm

-73 dBm

20 MHz Channel Width

1 Mbps

DSSS/CCK

30 dBm

-96 dBm

6 Mbps OFDM/BPSK 30 dBm -90 dBm

24 Mbps

OFDM/16QAM

30 dBm

-80 dBm

54 Mbps

OFDM/64QAM

23 dBm

-70 dBm



PHYSICAL, ENVIRONMENTAL AND OTHER SPECIFICATIONS

Antenna Ports

Two MMCX Ports

Operating Voltage

3.3 Volts (±10%)

Power Consumption

4.5W @ 29 dBm, in continuous data transmit mode @ 6 Mbps

1.5W in continuous data receive mode

0.25W Standby mode

Ambient Temperature for transceiver (Operating)

Industrial grade (-25°C to +70°C). Recommended for the development of Outdoor/MIL-SPEC compliant equipment (-40°C to +85°C) due to internal power dissipation.

Ambient Humidity (Operating)

10% - 95%, non-condensing

Dimension (LxWxH)

60 x 67 x 8 mm, approx. 40 grams

Environmental and Waste Management Compliance

RoHS, WEEE, 100% Recyclable Biodegradable packaging