| Author |
Message |
    
Slugger
New member
Username: Slugger
Post Number: 2
Registered: 3-2005
| | Posted on Friday, May 30, 2008 - 12:16 am: | 
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I would like to cophase 2 anttrons 99 . I live on the Gulf of Mexico Florida. So would it work? |
Bruce
Senior Member
Username: Bruce
Post Number: 4728
Registered: 9-2003
| | Posted on Friday, May 30, 2008 - 6:27 am: |
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YES it will go look at HYGAINs web site they give instructions on how to cophase there verticals which would work with thoes A-99's
http://download.qrz.ru/pub/hamradio/antenna/hy-gain/AV-12AVQ.pdf
Starting on page 11 is a report on how to phase up to 3 antennas
On 6 since 66
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Forummaster
Moderator
Username: Forummaster
Post Number: 509
Registered: 11-2001
| | Posted on Friday, May 30, 2008 - 8:52 am: |
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We sell a co-phasing harness to co-phase two A-99's.
http://www.copperelectronics.com/cart/product_info.php?products_id=34
Forummaster
CEF001
CVC001
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Slugger
New member
Username: Slugger
Post Number: 3
Registered: 3-2005
| | Posted on Tuesday, June 10, 2008 - 1:38 am: |
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Thank you so much. I am just one of those guys trying to be a little differant. And most of the people I talk to live North and South of me. And
We get some bad storms. I can take down my 99's pretty fast,At 36 feet. Slugger |
2wt140
New member
Username: 2wt140
Post Number: 1
Registered: 3-2002
| | Posted on Thursday, June 26, 2008 - 11:41 am: |
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I purchased coppers cophase kit back in 2000-2001 for the A99's. I tell yah what all the nay sayers say it wont work good, blah blah blah, but I had a custom 36 foot wide rotateable boom made (looked like a football goal post when up), and with this antenna I consistantly outperformed a 3 element Maco that I also had up. Both antennas were up on 20 foot crank up towers at APROX. 25 foot to the bases when you add in the mast! You essentially creat a bi-directional beam, with the signal in a figure 8 pattern and nulls in the middle, worked good but was to much strain on my little rotor. |
Press_man
Junior Member
Username: Press_man
Post Number: 11
Registered: 5-2008
| | Posted on Sunday, October 26, 2008 - 5:25 pm: |
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Old idea but I'm glad it's still around. Back in 1978 I had a PDL2 up at 48'to the center of the loading loops, great antenna. Anyway, 15 miles south of me was a fellow we called the Fishing Guide. He took folks out in the Indian River to hot spots then at 3am would meet me and a few other locals on the air for some early ground wave talking.
He had 2 Big Sticks cophased 1/4 wave apart on a boom atop a CDL rotor, it made the prettiest Cardoid pattern you ever saw. When he put it in the air I turned my beam North, he dropped power to 2 watts and I watched his signal while on the phone with him, impressive!
My station w/250 watts could cover from Sebastian to Tampa with no problem and S.Jacksonville and well south of the big lake. I was doing pretty darn good, I thought. Well, Guide w/500 watts covered that and with some to share. Little Mac 22 miles away had a Shooting Star at 100' in a pine tree and with 500 watts could talk where we could but couldn't hear. Point is, never discount odd designs. They work!
Thanks for the soap box, I'll give it back now.
Have a goody;
Wally |
Rick330man
Junior Member
Username: Rick330man
Post Number: 39
Registered: 9-2005
| | Posted on Saturday, February 14, 2009 - 11:14 am: |
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I'm probably just about due south of you in the Keys. I've done the co-phase routine down here with both 102" whips mounted on the house and then with A99s. Both set ups had the antennas about 9' apart to get the most bend on the east/west plane. Very interesting. A definite directional bend. Since most local radio traffic down here is east/west - from Key West to Marathon and points in between, it worked well. Then came the 2005 hurricane season when four storms hit us hard. After hurricane Wilma, it was easier to just stick up a half-wave base antenna. |
