Antenna grounding?

[Mrsig]

I have a MA09 High Gain 462~467MHz GMRS Omni-Directional Base Antenna  4.5/7.2 dBi High Gain Fiberglass Antenna 5.75’ height. On a 30' tower do I need to put a  ground wire on this antenna?

[Socalgmrs]

So that’s not “high gain” in any ones world.  And you really need to do some research’s BEFORE you put this up.  You may have local ordinances regarding grounding and how they want it done.  You may have home owners insurance issues.  This is the type of thing that can burn your house down.  Love the safety straps/harness and proper boots for climbing as well. 

[WRUE951]

NEC says ground the Tower  to common ground, the same ground your radio equipment is grounded to, your main electric panel ground.  Some folks add a separate ground for the tower but NEC says to ground that to your common.   BTW, your antenna is grounded to the tower via the mounting so no you dont need to ground to antenna

[WRXL702]

 

44 minutes ago, Mrsig said:

I have a MA09 High Gain 462~467MHz GMRS Omni-Directional Base Antenna  4.5/7.2 dBi High Gain Fiberglass Antenna 5.75’ height. On a 30' tower do I need to put a  ground wire on this antenna?

 

 

You Need To Ground The Tower Leg. The Antenna Is Already Connected To The Tower For Grounding Purposes.

The Coaxial Cable Should Also Have The Shielding Bonded To The Single Point Ground System. 

Unless You Have A Particular Type Of Commercial Antenna That Has Designated Grounding Straps At The Antenna - The Type Of Stick Does Not Matter.

A Lightning Arrester Is Also Recommended - PolyPhaser Makes An Excellent Arrester, Used Frequently On Commercial Radio Sites.

 

[tcp2525]

1 hour ago, Mrsig said:

I have a MA09 High Gain 462~467MHz GMRS Omni-Directional Base Antenna  4.5/7.2 dBi High Gain Fiberglass Antenna 5.75’ height. On a 30' tower do I need to put a  ground wire on this antenna?

 

Proper grounding can only be achieved by using 500MCM wire. Using anything less is totally and utterly foolish and breaks all safety and grounding requirements.

[WRXL702]

43 minutes ago, tcp2525 said:

Proper grounding can only be achieved by using 500MCM wire. Using anything less is totally and utterly foolish and breaks all safety and grounding requirements.

That Sir, Is Not Correct. I Suggest You Do Further Research, And Consult The Motorola R56 Manual For Site Grounding Requirements For Commercial Sites. 
See Link:

https://wiki.w9cr.net/images/1/14/Motorola-Standards-and-Guidelines-for-Communication-Sites-R56-Manual_68P81089E50-B.pdf

 

[WRUE951]

2 minutes ago, WRXL702 said:

That Sir, Is Not Correct. I Suggest You Do Further Research, And Consult The Motorola R56 Manual For Site Grounding Requirements For Commercial Sites. 
See Link:

https://wiki.w9cr.net/images/1/14/Motorola-Standards-and-Guidelines-for-Communication-Sites-R56-Manual_68P81089E50-B.pdf

 

The Motorola guide is their recommendation but not a NEC requirement, however their guideline does meet NEC grounding specifications.  To meet code, grounding requirements must meet the NEC 

[WRXL702]

17 minutes ago, WRUE951 said:

The Motorola guide is their recommendation but not a NEC requirement, however their guideline does meet NEC grounding specifications.  To meet code, grounding requirements must meet the NEC 

Suggest You Re-Read NFPA 70 - Chapter 810.15 Addressing Communication Site Grounding. (2023 Version)

I Am A Licensed Inspector In The State Of Michigan, & NFPA Is Recognized In All 50 States. (Year Of Adoption - Same As Previous Versions.)

[WRUE951]

5 minutes ago, WRXL702 said:

Suggest You Re-Read NFPA 70 - Chapter 810.15 Addressing Communication Site Grounding. (2023 Version)

I Am A Licensed Inspector In The State Of Michigan, & NFPA Is Recognized In All 50 States. (Year Of Adoption - Same As Previous Versions.)

NFPA 70 is also know as the National Electric Code  (NEC), whereas  NFPA 70E is a voluntary standard.   Surprised you didn't know that as a 'Licensed Inspector'   

[WRXL702]

3 minutes ago, WRUE951 said:

NFPA 70 is also know as the National Electric Code  (NEC)    Surprised you didn't know that as a 'Licensed Inspector'   

I Do - Do You...

Need To Read The Sec I Sited.....

[WRUE951]

Just now, WRXL702 said:

I Do - Do You...

obviously i do..   I gave you a lesson

[WRXL702]

No, Not Really - You Did Not.

When You Take The Time To Read NFPA 70 - Attempt To Understand It - Get Back To Me.