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Safety Messages

Yagi and Omni Antennas 

Federal Signal www.fedsig.com

Safety Messages

 

It is important to follow all instructions shipped with this product. This device is to be 

installed by trained personnel who are thoroughly familiar with the country’s electric 

codes and will follow these guidelines as well as local codes and ordinances, including 

any state or local noise-control ordinances.
Listed below are important safety instructions and precautions you should follow:
Important Notice

Federal Signal reserves the right to make changes to devices and specifications detailed 

in the manual at any time to improve reliability, function, or design. The information in 

this manual has been carefully checked and is believed to be accurate; however, no 

responsibility is assumed for any inaccuracies.
Publications

Federal Signal recommends the following publications from the Federal Emergency 

Management Agency for assistance with planning an outdoor warning system: 
•  The “Outdoor Warning Guide” (CPG 1-17)
•  “Civil Preparedness, Principles of Warning” (CPG 1-14) 
•  FEMA-REP-1, Appendix 3 (Nuclear Plant Guideline)
•  FEMA-REP-10 (Nuclear Plant Guideline).
Planning

•  If suitable warning equipment is not selected, the installation site for the siren is 

not selected properly, or the siren is not installed properly, it may not produce the 

intended optimum audible warning. Follow Federal Emergency Management Agency 

(FEMA) recommendations.

•  If sirens are not activated in a timely manner when an emergency condition 

exists, they cannot provide the intended audible warning. It is imperative that 

knowledgeable people, who are provided with the necessary information, be 

available at all times to authorize activation.

•  When sirens are used outdoors, people indoors may not be able to hear the warning 

signals. Separate warning devices or procedures may be needed to effectively warn 

people indoors.

•  The sound output of sirens is capable of causing permanent hearing damage. To 

prevent excessive exposure, carefully plan siren placement, post warnings, and 

restrict access to areas near sirens. Review and comply with any local or state noise 

control ordinances as well as OSHA noise exposure regulations and guidelines.

•  Activating the sirens may not result in people taking the desired actions if those to 

be warned are not properly trained about the meaning of siren sounds. Users should 

follow FEMA recommendations and instruct those to be warned of corrective actions 

to be taken.

•  After installation, service, or maintenance, test the siren system to confirm it is 

operating properly. Test the system regularly to confirm it will be operational in an 

emergency.

Summary of Contents for YAGI-1

Page 1: ...Installation Manual 25500445 Rev A1 0923 Printed in U S A Copyright 2018 2023 Federal Signal Corporation Yagi and Omni Antennas...

Page 2: ...all 1 708 534 3400 This limited warranty is in lieu of all other warranties express or implied contractual or statutory including but not limited to the warranty of merchantability warranty of fitness...

Page 3: ...ure 1 Yagi Antenna Installation Example 10 Figure 2 Omni Antenna Installation Example 11 Figure 3 Omni B Series Antenna Installation Example 12 Figure 4 Antenna Grounding 13 Figure 5 Typical Antenna P...

Page 4: ...ite for the siren is not selected properly or the siren is not installed properly it may not produce the intended optimum audible warning Follow Federal Emergency Management Agency FEMA recommendation...

Page 5: ...er including batteries before working near the siren After installation service or maintenance test the siren system to confirm it is operating properly Test the system regularly to confirm that it wi...

Page 6: ...na 138 150 MHz OMNI BVH xx VHF High Omni Directional Antenna 150 168 MHz OMNI BVH xx VHF High Omni Directional Antenna 168 174 MHz OMNI BUL xx UHF Low Omni Directional Antenna 380 420 MHz OMNI BUH xx...

Page 7: ...d the antenna s gain to the radio power and subtract VSWR loss and cable connector insertion losses Consider the following guidelines Do not have the antenna radiating element touching anything If too...

Page 8: ...ough the boom starting with R1 the reflective element in the hole closest to the mounting holes Then insert Dr D1 etc in that order NOTE A The shortest element is furthest away from the mount and incr...

Page 9: ...ntenna and check for the low VSWR while performing each of the following steps A Loosen the setscrew with the hex key provided and slightly adjust the aluminum gamma tube for the lowest VSWR Reflected...

Page 10: ...nd the antenna affect the antenna Keep the antenna pointed away from objects 2 Ensure the antenna cable connections are tight Seal all connection points with heat shrink or tape and seal with Scotchko...

Page 11: ...k or tape and seal with Scotchkote or equivalent 3 Apply RF power to the antenna on the site s transmit frequency and verify that the VSWR Reflected power is within the antenna s specification Record...

Page 12: ...Antennas Yagi and Omni Antennas Federal Signal www fedsig com Figure 3 Omni B Series Antenna Installation Example Omni B Series Antenna Antenna Mounting Bracket Ground Wire Utility Pole Tighten Set Sc...

Page 13: ...ELECTRICAL CODE INSTRUCTIONS REFER TO N E C FOR COMPLETE INSTRUCTIONS A USE NO 10 AWG COPPER NO 8 AWG ALUMINUM NO 17 AWG COPPER CLAD STEEL OR BRONZE WIRE OR LARGER AS GROUND WIRE FOR BOTH MAST AND LEA...

Page 14: ...cing any difficulties contact Federal Signal Customer Support at 800 548 7229 or 708 534 3400 extension 7511 or Technical Support at 800 524 3021 or 708 534 3400 extension 7329 or through e mail at te...

Page 15: ...15 Figure 5 Typical Antenna Pole Mount AMP P Installation...

Page 16: ...16 Figure 6 Typical Antenna Wall Mount AMP W Installation...

Page 17: ...17 Figure 7 Typical Omni B Series Antenna Pole Mount AMB P Installation...

Page 18: ...18 Figure 8 Typical Omni B Series Antenna Pole Mount AMB P Installation...

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