Application Notes |
2nd Generation ASH Radio PCB Gerber Files (10mWpcb_1522001x1.zip)
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2nd Generation ASH Radio PCB Gerber Files (SM20HEMI_1528002x2.zip)
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2nd Generation ASH Radio PCB Gerber Files (SM20LEMI_1528001x1.zip)
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2nd Generation Ash Receiver 5V to 3V Conversion
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2nd Generation ASH Transceiver 10 mW Power Amplifier Circuit Board
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2nd Generation ASH Transceiver Designers Guide (English)
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2nd Generation ASH Transceiver Designers Guide (Japanese Translation)
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3rd-Generation ASH Transceiver Designer’s Guide
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AN0900
Survey of Radio Regulations for RFM Transceiver RFICs (TRC103/104/105) |
AN0901
TRC104 2.4 GHz Transceiver Reference Design |
AN0901 Gerber Files
TRC104 2.4 GHz Transceiver PCB design and Gerber files |
AN0902
TRC103 950 MHz Transceiver Reference Design |
AN0902 Gerber Files
TRC103 950 MHz Transceiver PCB design and Gerber files |
AN0903
TRC103 915 MHz Transceiver Reference Design |
AN0903 Gerber Files
TRC103 915 MHz Transceiver PCB design and Gerber files |
AN0904
TRC105 434 MHz Transceiver Reference Design |
AN0904 Gerber Files
TRC105 434 MHz Transceiver PCB design and Gerber files |
AN0905
TRC105 403 MHz Transceiver Reference Design |
AN0905 Gerber Files
TRC105 403 MHz Transceiver PCB design and Gerber files |
AN0906
TRC105 315 MHz Transceiver Reference Design |
AN0907
TRC105 L-C RF Tuning Circuit |
AN0909
Recommended Reflow Profile for RFM XTC Series TCXOs |
AN0910
Recommended Reflow Profile for RFM SAW Resonators and SAW Filters |
AN1200
Designing WLS1273L WLAN/Bluetooth Modules into an Application |
AN1201
Designing WLS1271L WLAN/Bluetooth Modules into an Application |
AN1202
Designing WLS1270 WLAN Modules into an Application |
AN1800-1 2.3
DM1800 V2.2 and V2.3 Application Programming, provides an overall discussion of application software development for a DM1800 MESH network using V2.2 or V2.3 firmware, plus an example thermistor temperature sensor application. |
AN1800-1 2.4
DM1800 V2.4 Application Programming, provides an overall discussion of application software development for a DM1800 MESH network using V2.4 firmware, plus an example thermistor temperature sensor application. |
AN1800-2
DM1800 Poll, allows users to poll nodes, read and write to digital output and display input and output commands. |
AN1800-3
DM1800 UART Operation |
AN1800-4
DM1800 Serial |
AN1800-5
DM1800 Web Based App Note |
AN1800-6
DM1800 ASP DLL |
AN1800-7 2.2
DM1800/DM1810 Sleep Duty Cycle Demonstration |
AN1800-7 2.3
DM1800/DM1810 Sleep Duty Cycle Demonstration |
AN1810-1 2.2
DM1810 V2.2 Application Programming |
AN1810-1 2.3
DM1810 V2.3 Application Programming |
AN1810-1 2.4
DM1810 V2.4 Application Programming, provides an overall discussion of application software development for a DM1810 MESH network using V2.4 firmware, plus an example thermistor temperature sensor application. |
AN1810-1 2.5
DM1810 V2.5 Application Programming, provides an overall discussion of application software development for a DM1810 MESH network using V2.5 firmware, plus an example thermistor temperature sensor application. |
AN2200-1
DM2200 Temperature Sensor Demonstration |
AN2200-2
DM2200 Sleep Duty Cycle Demonstration |
AN2200-3
DM2200 Demo Program |
AN2200-4
ZN241G & DM2200 Remote Control Mesh |
AN80201
Wireless Temperature Sensor |
ANM1001
A Solar Energy Harvester for Wireless Sensor Networks |
ANM1002
Sizing Solar Energy Harvesters for Wireless Sensor Networks |
Antenna App Note: Part I Loop Antennas
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Antenna Lengths
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Antennas for Low Power Applications
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ASH Transceiver Antenna Impedance Matching
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Assembling ASH Radio Products Onto Customers' PWBs
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Capabilities & Applications of SAW Coupled-Resonator Filters (AN23)
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Comparison Between OOK/ASK and FSK Modulation Techniques for Radio Links
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Design and Certification of ASH Radio Systems for Japan
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DM1810-DK CD
DM1810-DK Development Kit CD |
DM1810-QK CD
DM1810-QK Quick Kit CD |
DM2200-DK CD
DM2200-DK Development Kit CD |
ESD Protection
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FCC Regulations
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Hand Soldering for TX, RX, and TR
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High Data Rate SAW-Stabilized ASK Transmitter
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Implementing a FHSS radio with the TRC103
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Low Power ASK Transmitter
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OOK Vs ASK Vs FSK
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Reflow Soldering of SMD Products To Printed Wiring Boards (PWBs) Using Lead-Free Solder
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Removing the TX, RX, and TR from the PCB
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RFIC Battery Life Calculator
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RFIC High Power TRC101-102
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RFIC TX/RX Configuration
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RFM 1% Transmitter Duty Cycle Calculator
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RFM Battery Life Calculator
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SAW Based Transmitter Design Notes
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SAW Filter PCB Layout (AN42)
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Saw-Stabilized FSK Oscillator
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Simple Clock & Data Recovery
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Transmitter Design Notes
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TRC101-102 FHSS
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TRC102 Range Test at 433.92MHz
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Unique Considerations for Data Radio UARTS (AN43)
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Using the TR8100 in ISSS Mode
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World Wide Frequency Allocations for RFM's Transceivers, Transmitters and Receivers
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Advances in SAW Technology (LPRA Presentation)
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Design of Wide Band SAW Coupled Resonator Filters on Quartz
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Lightning and Surge Protection
Because wireless systems are typically located out of doors and have components located on towers and tall buildings, they are especially susceptible to damage from lightning. This paper explores the proper design and implementation of a communications surge protection system to reduce down time and lower liability for people and property. (~ 152 KB, Adobe PDF format.) |
RF Power Options in ZigBee™ Solutions
While ZigBee is a "low power" standard, "high power" product versions are much needed — and are very much ZigBee standard. This paper explains how the the availability of ZigBee radios with high and low RF power options is key to ZigBee's appeal in industrial settings, allowing design engineers to tie radio selection directly to an application’s requirements for range and resistance to multipath fading. |
R-SPUDT Filters Based on Different Width Split Fingers
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Saw-Based Hybrid Transceivers in Slam Packaging (AN41)
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WaveBolt System Description
The WaveBolt™ system is a fixed wireless point-to-multipoint Internet access system designed specifically for residential and small business customers in areas where DSL and cable modem access are unavailable, unaffordable or otherwise undesirable. The WaveBolt system provides data speeds comparable to ADSL. Simple to install, the WaveBolt CPE in many cases will be installed by the end user. And, where customers choose to have the CPE installed, a single, short site visit is all that is required to complete the installation. (~ 162 KB, Adobe PDF format.) |
Wide Bandwidth Low Cost SAW Notch Filters
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Wireless Communications for Industrial Applications
This paper examines the unique requirements and challenges of wireless communications in an industrial setting and provides an overview of RFM wireless products designed specifically for these applications. The information presented serves as a guide for systems integrators and end users responsible for factory floor automation, industrial/PLC control, SCADA, telemetry and related data communications applications. (~ 136 KB, Adobe PDF format.) |
Wireless Transceivers—Make or Buy?
In choosing to add wireless data capability to a new or existing product, every designer faces a critical decision: whether to engineer the functionality in-house or buy a ready-made module for the application. This paper provides a cost analysis to explore the relative merits of each approach. (~ 160 KB, Adobe PDF format) |
ZigBee Wireless Transceiver Engineering Options
ZigBee's mesh networking capability, which compensates for obstructions and reduces range requirements, is especially prized in industrial applications. But with a technology this new, how can the RF designer best realize a successful ZigBee implementation? This white paper provides a brief, realistic assessment of ZigBees value in industrial environments, examines the types of components available today at the chip and module level, and discusses the practical considerations to be weighed in deciding to pursue ZigBee mesh networking in a specific application. |
