MTX-103
UHF AM TRANSMITTER MODULE
The MTX-103 is an on-off keyed (OOK) and amplitude
shift keyed (ASK) high performance, ultra compact, long
range transmitter for remote wireless applications. The
transmitter operates at the 902-928 MHz band, and is
primarily intended for use in part 15.247 and 15.249 sys-
tems. Because all tuning is automatic and the transmitter
functions are completely integrated, this module is both a
highly reliable and low cost solution for high volume wire-
less applications. An external antenna is the only comp-
Typical Applications
Remote controls
Garage openers / Gate controls
Keyless entry
Lighting control
Home / Industrial automation
Continuous / Periodic data transfer
Remote access
Guard patrol / Lone worker protection
Domestic / Commercial security
Fire / Security alarms
General wire elimination
Key Features
Low cost
Wide supply voltage range
Commonly employed RKE frequencies
Wide operating temperature range
Easily integrated
Supports On-Off Keying
Low power consumption
Compact surface-mount packages/Small Size
Data rate up to 115 kbps
Power down pin
No production tuning
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Contact Information
Radios, Inc.
1408 Center Avenue
Oostburg, WI 53070
Phone: 920-564-6622
Fax: 920-564-6630
Email: sales@radiosinc.com
onent required, therefore the MTX-103 can be easily integrated into other applications, which has the
benefit of eliminating design and production costs and improving time to market.
The MTX-103 employs a unique feature which tunes the antenna to the internal UHF synthesizer. The
transmitter normally complies with worldwide UHF unlicensed band intentional radiator regulations, and
also is compatible with virtually all ASK/OOK receiver types. The MTX-103 is designed to work with
transmitter data rates up to 115k bits per second. The automatic tuning coupled with a preset PA level
ensures that the transmitter output power remains constant at maximum regulatory transmit power limits
for the life of the battery. When used with the family of MRX receivers, the MTX-103 provides an
inexpensive and reliable wireless solution that is suitable for a wide variety of RF applications, specifically
OEM applications.
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