| Author |
Message |
    
Jasondog3
New member
Username: Jasondog3
Post Number: 5
Registered: 3-2016
| | Posted on Sunday, July 23, 2017 - 9:37 pm: | 
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I'm putting up a new A99 with GPK. Mast pole will be attached to side of house with brackets and cemented into ground. I will have an in-line lightening arrestor.
Some bloke said I should isolate the antenna from the mast pole by wrapping a PVC pipe around the mast pipe. What do you think?
I thought having the A99 directly attached to pole would provide an extra layer of lightening protection. |
Charliebrown
Advanced Member
Username: Charliebrown
Post Number: 558
Registered: 10-2002
| | Posted on Monday, July 24, 2017 - 6:29 pm: |
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Nothing will protect the antenna itself. If lightning were to hit the antenna it will go into a million piece's. What you need to do is get a polyphaser and put it at the base of the antenna. The coax connects to each end of it. This will help protect your coax and your radio. Follow the instruction's it came with. |
Jasondog3
New member
Username: Jasondog3
Post Number: 6
Registered: 3-2016
| | Posted on Friday, July 28, 2017 - 11:32 am: |
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OK... but what do you think about isolating the antenna?
If I do not isolate the antenna, will that hurt the performance of the antenna? |
Tech833
Moderator
Username: Tech833
Post Number: 2383
Registered: 8-2002
| | Posted on Monday, July 31, 2017 - 12:23 am: |
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Do NOT isolate the antenna from the pole. That bloke gave you horrible advice.
Your radio 'Mythbuster' since 1998
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Tech237
Moderator
Username: Tech237
Post Number: 1881
Registered: 4-2004
| | Posted on Monday, July 31, 2017 - 9:11 am: |
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I agree with Tech833. My old one was not isolated from a steel post. I worked 80 countries and 49 States with it, at 4ft above ground.
Tech237
N7AUS
God made me an athiest, who are you to question his wisdom?
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Charliebrown
Advanced Member
Username: Charliebrown
Post Number: 559
Registered: 10-2002
| | Posted on Tuesday, August 01, 2017 - 9:23 pm: |
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Sorry it took so long to get back with you but listen to the tech's. They are 100 percent correct. do not isolate the antenna. Also the ground plane kit on the a-99 does not really help. If I were you I would get an Imax 2000 with the ground plane kit. The ground plane kit on the 2000 really does work. If you want solid advice Tech 833 is your man to go to. He knows everything you need to know. |
Jasondog3
New member
Username: Jasondog3
Post Number: 8
Registered: 3-2016
| | Posted on Friday, May 08, 2020 - 2:23 pm: |
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I want you all to know that i did go with the A-99 with the GPK radials. I am super-impressed with it.
Years ago, I had an A-99 without the GPK. Today, my new A-99 with the GPK is MUCH BETTER than the old setup. So, I really think the GPK makes a difference.
Although, the other variable is this: the new A-99 is about 8 feet higher than the old one. |
Charliebrown
Advanced Member
Username: Charliebrown
Post Number: 716
Registered: 10-2002
| | Posted on Saturday, May 09, 2020 - 9:45 am: |
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You need to read the articles by TECH 833 on this web site Copper has on the different antenna's. There you will find the tech information your searching for. I had the Antron 99 without and with the gpk and I had seen no increase in performance with the gpk whatsoever . |
Charliebrown
Advanced Member
Username: Charliebrown
Post Number: 717
Registered: 10-2002
| | Posted on Monday, May 11, 2020 - 8:35 pm: |
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For you to tell if there are any difference you have to test it at the same height without and with the GPK . You had raised your antenna and that is why you are seeing an improvement. |
Tech833
Moderator
Username: Tech833
Post Number: 2463
Registered: 8-2002
| | Posted on Monday, June 01, 2020 - 5:45 pm: |
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No matter what- You are getting better performance with your new setup, so that's excellent. Call it good, my friend! Don't question it, just enjoy the benefits of your efforts.
Your radio 'Mythbuster' since 1998
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Charliebrown
Advanced Member
Username: Charliebrown
Post Number: 720
Registered: 10-2002
| | Posted on Wednesday, June 03, 2020 - 2:46 pm: |
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Tech 833, Did you not say in one of your testing post of the A-99 with the GPK that you had seen no improvement with the GPK on the A-99 |
Tech833
Moderator
Username: Tech833
Post Number: 2465
Registered: 8-2002
| | Posted on Friday, June 12, 2020 - 12:08 am: |
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I did.
Your radio 'Mythbuster' since 1998
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Charliebrown
Advanced Member
Username: Charliebrown
Post Number: 721
Registered: 10-2002
| | Posted on Friday, June 12, 2020 - 9:49 pm: |
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Forgive me 833, I am getting old and I had to make sure. Thanks and HAVE A BLESSED WEEK END |
