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MRX-011
UHF AM RECEIVER MODULE
The MRX-011 is an on-off keyed (OOK) high performance re-
ceiver for remote wireless applications. The MRX-011 is an en-
hanced version of the MRX-001. The receiver operates at 315,
390, 418, and 433 MHz and is primarily intended for use in part
15.231 systems. Because all tuning is automatic and the receiver
functions are completely integrated, this module is both a highly
reliable and low cost solution for high volume wireless applica-
tions. An external antenna is the only component required, there-
fore the MRX-001 can be easily integrated into other
applications, which has the benefit of eliminating design and production costs and improving time to mar-
ket. The MRX-011 is a functional and pin equivalent upgrade to the MRX-001, providing improved range,
lower power consumption, and higher data rate support when in FIX mode.
The MRX-011 comes in two versions: FIX and SWP. In FIX mode, the receiver operates like a conven-
tional superheterodyne receiver with an internal local oscillator fixed at a single frequency. The transmit
frequency is accurately controlled by a crystal. In SWP mode, the receiver sweeps the internal local
oscillator at rates greater than the baseband data rate, which broadens the RF bandwidth and allows the
MRX-011 to operate with less expensive transmitters without additional components or tuning. Post-
detection data filtering is internal to the receiver, and any one of four bandwidths can be selected by the
user. Bandwidths range in binary steps from .625kHz to 5kHz (SWP mode) or 1.25kHz to 10kHz (FIX
mode). The MRX-011 is a well-designed receiver suitable for a variety of RF applications, particularly
OEM applications.
Key Features A Typical Applications
Low cost Remote controls
Wide supply voltage range Garage openers / Gate controls
Commonly employed RKE frequencies Keyless entry
Wide operating temperature range Lighting control
Easily integrated Periodic data transfer
Typical range over 200 meters with Remote access
monopole antenna Guard patrol / Lone worker protection
Low power consumption Domestic / Commercial security
Compact surface-mount packages
5V operation
Fire / Security alarms
General wire elimination
Data rates to 2.5 kbps (SWP), 10kbps (FIX)
Small size
No production tuning
Fast enable time
Contact Information
Radios, Inc.
1408 Center Avenue
Oostburg, WI 53070
Phone: 920-564-6622
Fax: 920-564-6630
Email: sales@radiosinc.com
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