Copper Talk » Ask The Tech » Antennas » TECH 833: FLATSIDE BEAM QUESTION, (THANKS) « Previous Next »

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Road_warrior
Intermediate Member
Username: Road_warrior

Post Number: 195
Registered: 7-2004
Posted on Saturday, November 27, 2004 - 9:23 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Tech 833,

When you mount lets say a Maco M104 on the Flatside./ How high above the tower should it be?
And how would one go about mounting a Maco V5/8
above flatside beam??? How far should Maco 5/8
be from beam??? Can I shorten radials on Maco 5/8?
And if so, how much should they be shorten by???
Thank you in Advance!

JIM/CENTRAL PA/ CEF 375
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Road_warrior
Intermediate Member
Username: Road_warrior

Post Number: 197
Registered: 7-2004
Posted on Tuesday, November 30, 2004 - 10:38 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Where are you Tech 833??? LOL

JIM/CENTRAL PA
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Tech833
Moderator
Username: Tech833

Post Number: 901
Registered: 8-2002
Posted on Wednesday, December 01, 2004 - 3:15 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hi Jim.

My online time is limited, sorry.

Your 'flat side' beam won't care how high it is above the tower, it can even be side mounted in the middle of or anywhere on the tower with no problem. What it WILL care about is guy wires and other stuff in the same perpendicular field as itself. Keep it at least 1/4 wave away from that kind of stuff.

You can mount a ground plane antenna above the beam with no seperation at all if you remove the ground planes. You will not need them as the 'flat side' beam will act like ground planes for it. If you leave the ground planes on, get it at least 1/4 wave above the beam.
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Road_warrior
Intermediate Member
Username: Road_warrior

Post Number: 198
Registered: 7-2004
Posted on Thursday, December 02, 2004 - 11:30 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

THANKS TECH 833, appreciate you taking time to answer my question...

JIM/CENTRAL PA
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2at124
New member
Username: 2at124

Post Number: 1
Registered: 12-2004
Posted on Thursday, December 23, 2004 - 7:06 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I HAVE DONE THE SAME WITH MY 3 ELEMENT MECO ON FLATSIDE WITH A IMAX 2000 WITH NO SWR PROBLEMS .IMAZ IS A 1.1 AND THE BEAM 1.0

73'S
2AT124

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