Copper Talk » Ask The Tech » Antennas » METER 70CM BEAM AND 11 METER BEAM ON SAME TOWER. « Previous Next »

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Charliebrown
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Username: Charliebrown

Post Number: 807
Registered: 10-2002
Posted on Tuesday, August 23, 2022 - 10:45 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Any tech or any person that can help. I have a dual band 2 meter 70cm beam antenna and a 11 meter beam. What I want to do is use these 2 beam's on the same mast same rotor on the tower. HERE IS MY QUESTION. When I stack the ham beam over the 11 meter beam how far should I space the 2 beam's apart for the best performance???
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Charliebrown
Advanced Member
Username: Charliebrown

Post Number: 808
Registered: 10-2002
Posted on Saturday, August 27, 2022 - 10:59 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I wonder why none of the techs or anyone else not responding to questions anymore.
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Charliebrown
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Username: Charliebrown

Post Number: 809
Registered: 10-2002
Posted on Monday, August 29, 2022 - 7:46 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

How about it Tech 833 or any other person??? What should be the distance from each beam on the same pole on the tower??????
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Tech858
Moderator
Username: Tech858

Post Number: 598
Registered: 10-2007


Posted on Tuesday, August 30, 2022 - 7:27 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Personally I would leave a space of a quarter wave of the 11mtr antenna between them , more if possible. Bear in mind you will have to adjust BOTH antennas for optimum SWR after you have them stacked and not before.
Tech858/Jim
MM0TXO
Wavin' a hand from Scotland

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Charliebrown
Advanced Member
Username: Charliebrown

Post Number: 810
Registered: 10-2002
Posted on Wednesday, August 31, 2022 - 8:10 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Thanks Tech 838. I thank you for the information. Good to hear your still on the forum. I don't know where everyone else. is. I hope and pray Covid hasn't caused anyone any trouble
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Tech858
Moderator
Username: Tech858

Post Number: 599
Registered: 10-2007


Posted on Friday, September 02, 2022 - 9:36 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Still hangin' around Charliebrown. I just pop in now and then when I have time.
Tech858/Jim
MM0TXO
Wavin' a hand from Scotland

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Charliebrown
Advanced Member
Username: Charliebrown

Post Number: 811
Registered: 10-2002
Posted on Friday, September 02, 2022 - 8:59 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I understand. People having no time at all, busy trying to make it. Times are hard in this country People including our leaders love the evil hate the good. call good evil and evil good. This is in the bible. My ancestors are from Scotland. Maybe its time to move back. But anyway Thank you so much for your help . You and your family have a Blessed day.
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Tech833
Moderator
Username: Tech833

Post Number: 2519
Registered: 8-2002
Posted on Monday, December 05, 2022 - 2:00 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

The fact is, the 2m beam is so small, it won't affect the 11m beam much at all. Be thinking of the 2m beam spacing from other stuff. A half wave on 2m is just over 3 feet. A full wave is just over 6 feet. So, go with 6 or more if you have space. Minimum spacing would be just over 3 feet.
Your radio 'Mythbuster' with Copper Electronics since 1998
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Charliebrown
Advanced Member
Username: Charliebrown

Post Number: 832
Registered: 10-2002
Posted on Thursday, December 08, 2022 - 11:21 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Thank you 833. I have plenty of room living in rural area lot of mountains and little over 3 acres of land. God Bless Merry Christmas

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