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Loctite?

JamesBrox

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I'm putting an antenna together....Comet CA-712EFC. On the ground plane (radial rods), some say use it for obvious reasons, then others say don't because you put a thin layer between the medals. Which causes a break down in continuity. Thoughts?
 
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mmckenna

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I'm putting an antenna together....Comet CA-712EFC. On the ground plane (radial rods), some say use it for obvious reasons, then others say don't because you put a thin layer between the medals. Which causes a break down in continuity. Group's thoughts?

Does the manufacturer installation specs call for it? Is it mounted securely, or is it going to be vibrating a lot?

I've heard of people doing that with antennas. If it's a very small amount of thread locker, and there is still direct metal to metal contact at the joints, there's no real reason it wouldn't work. Risk would be that you use too much and create an insulator, or worse, a non-linear joint, and create a lot of RF noise.

Proper installation and torque of hardware to manufacturer specifications should be enough.
 

a417

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the manufacturer documentation for that item only refer to 'locking nuts', and in no way recommends or suggests loctite for installation. The only recommendation for items not found on the packing list is "waterproofing with glue, self fusing tape or vinyl tape" in regards to the power feeding section of the hardware.

I would not do loctite, personally.
 

JamesBrox

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Does the manufacturer installation specs call for it? Is it mounted securely, or is it going to be vibrating a lot?

I've heard of people doing that with antennas. If it's a very small amount of thread locker, and there is still direct metal to metal contact at the joints, there's no real reason it wouldn't work. Risk would be that you use too much and create an insulator, or worse, a non-linear joint, and create a lot of RF noise.

Proper installation and torque of hardware to manufacturer specifications should be enough.
No sir, manufacturer's specs doesn't call it. But it will be subject to the Florida weather. Crazy sometimes.
 

JamesBrox

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the manufacturer documentation for that item only refer to 'locking nuts', and in no way recommends or suggests loctite for installation. The only recommendation for items not found on the packing list is "waterproofing with glue, self fusing tape or vinyl tape" in regards to the power feeding section of the hardware.

I would not do loctite, personally.
You are correct, sir....I read the same thing. I'm asking because there some videos out there doing "hardening" of antennas. Such as heat shrinks, spraying the antenna with several coats of clear lacquer and drilling extra base mount screws.
 

a417

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On the Youtubes? They want the clicks, because they get the sweet, sweet Youtubes money. They will say anything, and if they say it convincingly enough, someone will believe them.

That's my $0.02
 

JamesBrox

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On the Youtubes? They want the clicks, because they get the sweet, sweet Youtubes money. They will say anything, and if they say it convincingly enough, someone will believe them.

That's my $0.02
.02 observed. I don't believe anybody or anything....just asking what the group thinks about the subject.
 

mmckenna

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No sir, manufacturer's specs doesn't call it. But it will be subject to the Florida weather. Crazy sometimes.

You are correct, sir....I read the same thing. I'm asking because there some videos out there doing "hardening" of antennas. Such as heat shrinks, spraying the antenna with several coats of clears lacquer and drilling extra base mount screws.

Some hams like to over engineer things. Some hams like to over think everything.

The antenna should be designed to handle this sort of environment. Usually you'll see maximum wind speed specs for antennas. Unless you are exceeding that sort of environment, you shouldn't need to add locking compounds, extra mounting bolts, etc. Torquing to manufacturer specs should be enough to meet the design specifications. Adding an insulating layer between the threads isn't a good plan, although the tapping of the holes should ensure a tight fit that should prevent issues.

Snug it with a wrench if the installation instructions don't include a torque spec. Keep an eye on the antenna, periodic preventative maintenance would be a better approach.

The lacquer over the antenna is to help reduce weathering of the fiberglass. I've got antennas up at work that have been there for 20 years and haven't needed anything additional done to them. I have some sites that see hurricane force winds in the winter time, sometimes with the addition of a layer of ice, and never had a commercial quality antenna have an issue. However, with the ham/hobby grade stuff, your milage may vary.
 

a417

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.02 observed. I don't believe anybody or anything....just asking what the group thinks about the subject.
I wouldn't.

I'd use loctite on the mounting bolts for the hardware brackets, but not on the radials or antenna nut
 

JamesBrox

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mmckenna

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Yes, living in the panhandle all my life, anything over 112mph....it's "Kathy, bar the doors". Lol. Appreciate your insight.

To see wind speeds like that, I'd have to be on a mountain top during a storm. Glad I do not get that sort of stuff at my home.
 

JamesBrox

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To see wind speeds like that, I'd have to be on a mountain top during a storm. Glad I do not get that sort of stuff at my home.
I bet. Yeah, living on the gulf coast....we always feel like we're on "barrowed time". Hurricanes will come eventually. But we live through them.
 
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