Manchester Encoding
- for serial data links. This Intersil
PDF file will get you started with running data over a link (Download)
NT2904 RFMODEM -
Data rates of up to 56Kbps using your
PC's internal modem and our NT2904 EVAL Evaluation Board. (Download)
Flash Microcontroller
- Can be used with the NT2904 or NT2800 to store
the NT programming parametric data and provide application specific
programming and control functions. RF Modem / MNP5, Telemetry, Monitoring
and control of remote devices, etc. (Download)
PCB Antenna Design
- Provides practical information on Loop "Dipole",
Patch, Slot, and Helical antennas. Much of the information is already
specified for 915 MHz ISM Band. (Download)
More
on PCB Antenna Design (Download)
RF PCB Layout
- If you have never done RF circuit layout
on a printed circuit board you need to read this document. Sites such
as www.RFGlobalnet.com and
www.RFCafe.com can help with material
selection, "Strip Line", "Vias", "Ground Planes", RF Impedance
Matching and component placement; things you MUST understand before
you start. It's best to use someone like
www.rflab.com to convert your schematic into a board layout.
(Download)
System Performance
depends upon a Site Survey (Download)
GC-Prevue
- is a Gerber file viewing tool. You can use the "Import"
function in the "Files" window to bring in individual layers
and masks. (Download)
| (Visit "CircuitAssembly.Com")
NT2904EVAL
- is the Gerber file for Numa Technologies' NT2904 Evaluation board.
The Evaluation board has four-layers, and we therefore advise ordering
a complete, tested unit from us. (Download
Gerber File) | (Download Schematic)
| (Download BOM) | (NT2904
Support Document)
Rabbit Semiconductor
- Offers Internet Ported Devices and Microcontrollers
that can gather data over remote wireless devices and upload them to
a network. (Visit
Them)
Click HERE
to download PDF's of the "FCC Rules and Regulations, Part
15, Title 47 of the CFR"
Click HERE
to visit "FCC Certification and Compliance Laboratories";
L.S. Research / Compliance
ETSI - SRD
document covers standards of operation and applications for short range
data devices throughout Europe and other countries. (Download
the PDF)
;)