On Sun, 02 Jun 2013 09:15:06 -0600, bud--
wrote:

On 6/2/2013 7:39 AM, Jamie wrote:
Rich Webb wrote:

On Sun, 2 Jun 2013 02:05:29 -0400, "Humbled Survivor"
wrote:


Can I ground out my outdoor FM antenna from the pole?

Does the negative of the coaxial cable have to be grounded?

Which method is best for preventing lightening strikes?


Ref: NEC 810.15, 810.20, 810.21

Both the antenna mast and the signal lead-in (via a listed antenna
discharge unit) should be grounded IAW the above sections.


But the provisions of the NEC are not to protect from direct lightning
strikes to an antenna - much more elaborate protection is required. They
can provide protection from other surge sources, like near strikes.

For best protection the ground from antenna line entry protectors must
connect with a short wire to the power earthing system. You want to
minimize the voltage between power and antenna wires.

Roger all of the above.

Re-reading the OP's question, he may have been asking if he could
ground the mast to the premise ground and bond the signal downlead
discharge gizmo to the mast's ground wire.

\ /
\ /---.
|| |
m || | R
a || | F
s || |
t || |
|| |
,-++---[ ] discharge unit
| || |
| `---------RF--
|
| grounding wire
__|+___
|| premise ground rod
||