Midland Radio SD225V2, SD225U2 Users Guide

User’s Guide

SD-225 Series

16 Channel UHF/VHF Data Radio

www.midlandradio.com

SD-225 User’s Guide

FCC RF EXPOSURE COMPLIANCE REQUIREMENTS FOR

OCCUPATIONAL USE ONLY

The Federal Communications Commission (FCC), within its action in General Docket 93-62, November 7, 1997, has adopted a safety standard for human exposure to Radio Frequency (RF) electromagnetic energy emitted by FCC regulated equipment. Midland Radio Corporation subscribes to the same safety standard for the use of its products. Proper operation of this radio will result in user exposure far below the Occupational Safety and Health Act (OSHA) and FCC limits.

 DO NOT transmit for more than 50% of total use

time (50% duty cycle). Transmitting more than 50% of the time can cause FCC RF exposure compliance requirements to be exceeded.

 This radio is NOT approved for use by the

general population in an uncontrolled environment. This radio is restricted to occupational use, work related operations only, where the radio operator must have the knowledge to control the user’s exposure conditions for satisfying the higher exposure limit allowed for occupational use.

 The antenna used with this radio should not have

gain of more than 6 dBi. Make sure no one is closer than 20 inches to the antenna when transmitting. The radio is transmitting when the red LED on the cover of the radio is illuminated. You can cause the radio to transmit by grounding pin 3 on the radio connector.

 These are required operating conditions for

meeting FCC RF exposure compliance. Failure to observe these restrictions means violation.

SD-225 User’s Guide

Contents

Conventions and Symbols in this Book ................................... 4

Disclaimer ................................................................................ 4

Safety....................................................................................... 4

Introduction .............................................................................. 6

Radio Models ....................................................................... 6

Radio Features..................................................................... 6

Recommended Accessories and Options............................ 7

Radio Connections................................................................... 8

Connection Overview ........................................................... 8

External Interface ............................................................... 10

DB9 Radio Interface Connector Details ............................. 10

Setup and Operation.............................................................. 12

Mounting............................................................................. 12

Channel Selection .............................................................. 12

Status LED ......................................................................... 13

Specifications......................................................................... 14

Warranty Statement............................................................... 15

SD-225 User’s Guide

Conventions and Symbols in this Book

 This symbol marks a “caution”. Cautions are special notices

which you should read and follow carefully to avoid possible damage to your equipment and to avoid potential danger to yourself or other people.

! This symbol marks an “important point”. Important points are

specific instructions which should be followed closely for proper operation.

 This symbol marks a “note”. Notes are hints or tips which offer

additional information to help you.

Disclaimer

Midland Radio Corporation is committed to continuous quality improvements, for this reason specifications may change without prior notice.

Every effort has been made to ensure that the information in this document is complete, accurate, and up-to-date. Midland assumes no responsibility for the results of errors beyond its control. The manufacturer of this equipment also cannot guarantee that changes in the equipment made by unauthorized people will not affect the transceiver’s performance or functions.

Safety

Your SD-225 data radio has been carefully designed to give you years of safe, reliable performance. As with all electrical equipment, however, there are a few basic precautions you should take to avoid injury to yourself or damage to the radio:

 Read the instructions in this book carefully. Be sure to save it for

future reference.

 Read and follow all warning and instruction labels on the radio

itself.

 Do not operate the radio near unshielded electrical blasting caps

or in an explosive atmosphere.

SD-225 User’s Guide

 Do not operate the transmitter of any radio unless all RF

connectors are secure.

 All equipment must be properly grounded for safe operation.  Do not allow children to operate or play with or near the radio

equipment.

 Never attempt to service the radio yourself. All equipment should be

serviced by a qualified technician. Contact you local dealer or communications coordinator for assistance.

 Do not allow the antenna to touch or come in very close proximity

with the eyes, face, or any exposed body parts while the radio is transmitting.

 The above warning list is not intended to include all hazards that may

be encountered when using this radio.

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