Doodle Labs RM-915-1G Prism Wi-Fi Radio Transceiver User Manual
Doodle Labs (SG) Pte Ltd Prism Wi-Fi Radio Transceiver
User Manual
RM-915-1G
900 MHz, Rugged, Long Range 2 Stream Broadband Radio Transceiver
Features
• Very low size, weight, and power (SWaP) for mobile applications
• 37x57x11 mm, 40 grams (1 stream)
• Available in frequency bands up to 6 GHz
• Configurable channel size from 3~40 MHz
• Dynamic Link adaptation to optimize throughput depending on channel conditions
• Adaptive radio modulations from DSSS up to 64QAM
• High Tx power for long range (adjustable up to 1W)
• Up to 50 Mbps Iperf throughput
• Ethernet interface to allow easy integration into various applications
• Point-to-Point, Point-to-Multipoint, and Adhoc operating modes
• Mobile mesh router (Optional)
• High wireless data security with up to 128 bit AES encryption
• OTA firmware upgrade
• Industrial temperature range (-40C to +85C)
• COTS – Commercial off the Shelf
Target Applications
• Unmanned Aerial Vehicles (Drones)
• Mobile robotics
• Mines and Construction site machines
• Public Safety/Video surveillance
• Private Networks in Oil and gas fields
• Wind Turbine and Solar farms
• Wireless ethernet extensions
TECHNICAL SPECIFICATIONS
Model No. RM-915-1G (Rugged, Long Range applications
Chipset Qualcomm Atheros
QCA4531 with Extended Temperature range
Software Support OpenWRT (Wireless Router/Linux OS)
Center Frequency Range 902 MHz ~ 928 MHz
Channel Bandwidth* 5 MHz
Radio Modulation (Auto Adjust) CCK, BPSK, QPSK, 16 QAM, and 64 QAM
Data Rates Supported
802.11 b/g: 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48 and 54
Mbps (2.4 GHz)
802.11n: MCS0-7
802.11n version 2.0 Capabilities
Packet aggregation: A-MPDU (Tx/Rx), A-MSDU (Tx/Rx),
Maximal ratio combining (MRC), Cyclic shift diversity
(CSD), Frame aggregation, block ACK, 802.11e
compatible bursting, Spatial multiplexing, cyclic-delay
diversity (CDD), low-density parity check (LDPC), Space
Time Block Code (STBC)
Operating Modes AP, STA and Adhoc modes to implement Point to Point,
Point to multi Point, and Mesh networks
MAC Protocol TDD with Carrier Sense Multiple Access with Collision
Avoidance (CSMA/CA)
Wireless Error Correction FEC, ARQ
Wireless Data Security
128 bit AES, WEP, TKIP and WAPI hardware encryption.
Support for IEEE 802.11d, e, h, i, k, r, v, w and time stamp
standards
FIPS Certification
Loop back mode to facilitate FIPS AES certification, Small
packet size (96 bytes) in AES encryption at full packet
rate
Tx/Rx
Specification Radio
Modulation Coding Rate Tx Power
(±2dBm)** Rx Sensitivity
(Typ)
5 MHz Channel
802.11n BPSK 1/2 27 -98
802.11n 16 QAM 3/4 27 -89
802.11n 64 QAM 3/4 21 -82
* It is advantageous to use the smallest Channel Bandwidth that can support the Throughput
requirements. Smaller bandwidths provide more channels to choose and help avoid interference issues.
The system’s SNR is higher at smaller Channel Bandwidths and Range is longer.
Antenna Signal Strength
-35 to -85 dBm (Recommended), Absolute Maximum=+12
dBm
Receiver LNA Gain >10 dB
Receive chain Noise Figure 6 dB
RF Power control by Driver
In 0.5 dBm steps. Accuracy of power calibration loop ±2
dBm. Each transceiver individually calibrated and
tested.
RF Hardware Disable (RF Kill) Pin 20 of miniPCI-E interface. (Required for FAA
compliance)
Control for External Power Amp Available as an optional configuration
Receiver Adjacent Channel Rejection
(ACR) >18 dB @ 11a, 6 Mbps (Typ)
Receiver Alternate Channel Rejection
(ALCR) >35 dB @ 11a, 6 Mbps (Typ)
Transmitter Adjacent Channel Leakage
power Ratio (ACLR) 45 dB (Fc ± ChBW)
Transmitter Spurious Emission
Suppression -40 dBc
PHYSICAL, ENVIRONMENTAL AND OTHER SPECIFICATIONS
Antenna Ports 1 Ports (50 Ohms) with MMCX connectors
Integrated Antenna Port Protection >20 KV (Human Body Model)
Host Interface 100Base-T Ethernet
Host CPU Board Any CPU board with Industry standard miniPCI-Express
interface with minimum 6 mm connector height
Operating Voltage 5~42 V
Power Consumption 6.5W in data transfer mode
2.1W in data receive mode
Shield case temperature range
(Operating)
-40°C to +85°C (Rugged, Long range RM-915-1G model)
The System’s thermal design should ensure that the
transceiver’s shield case temperature is maintained within
these specifications.
Cable Assembly Assembly drawing available upon request.
Dimensions
37 x 57 x 11.5 mm
40 grams
Mechanical drawing and 3D-CAD files available upon
request
Humidity (Operating) 0% – 95% (Non-condensing)
Regulatory Requirements
Designed and Verified to meet various regulatory
requirements. Formal testing and approval is required
based on the System Integrator’s particular host platform
and antenna type. The System Integrator is also
responsible for obtaining all required regulatory approvals
in target markets for the finished product.
Doodle Labs can offer assistance for compliance testing
of the System Integrator’s host platform.
RoHS/WEEE Compliance Yes. 100% Recyclable/Biodegradable packaging
* Specifications are subject to change without prior notice.
IC Statement
This device complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the following
two conditions:
(1) This device may not cause interference; and
(2) This device must accept any interference, including interference that may cause undesired
operation of the device.
The term “IC: “ before the certification/registration number only signifies that the Industry Canada
technical specifications were met. This product meets the applicable Industry Canada technical
specifications.
Le présent appareil est conforme aux CNR d'Industrie Canada applicable aux appareils radio exempts
de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire
de brouillage,
et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage
est susceptible d'en compromettre le fonctionnement
Singapore:
USA:
Doodle Labs (SG) Pte. Ltd.
Doodle Labs LLC
150 Kampong Ampat
2 Mattawang Drive
KA Center, Suite 05-03
Somerset, NJ 08873
Singapore 368324
Tel:
+1 862 345 6781
Tel:
+65 6253 0100
Fax: +65 6353 5564
The host product will be labelled to display the IC number for the module, preceded by the word "Contains",
as follows: Contains IC: 21411-RM9151G
3)The antenna must be installed with the transmitter module through the specific shield cable.