| Author |
Message |
    
Dale
Intermediate Member
Username: Dale
Post Number: 136
Registered: 12-2002
| | Posted on Wednesday, July 13, 2005 - 3:03 pm: | 
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im putting up this antenna at 36ft and 45degree angle. my one friend is a ham operator/also 11meter.has him 2 mter antenna set up this way with excellent results.peresonally ive never heard of doing thaT.but what do i know any ham/nonhams operators opions please.hmm maybe i should have posted this in ham area .sorry if i shouldve posted elesewere |
Hollowpoint445
Advanced Member
Username: Hollowpoint445
Post Number: 546
Registered: 6-2004
| | Posted on Wednesday, July 13, 2005 - 4:19 pm: |
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That way it'll receive horizontally and vertically polarized signals about the same - but neither particularly well. For DX it would probably be fine because signals change polarization when refracted by the ionosphere, but for local chat your signal won't be as strong as it could be for either polarization. I wouldn't do it myself. |
Chainsawiowa
Junior Member
Username: Chainsawiowa
Post Number: 39
Registered: 1-2005
| | Posted on Wednesday, July 13, 2005 - 7:45 pm: |
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Great idea ! A few people do that around here because of sleet and snow that builds up as ice, Its helps the moisture run off faster. |
Rover
Intermediate Member
Username: Rover
Post Number: 201
Registered: 2-2004
| | Posted on Wednesday, July 13, 2005 - 8:46 pm: |
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A friend of mine fixed his 11 element 2M beam so he could change it remotely. He attached a hinge to the beam with a lanyard so he could step out on his deck and tug the rope and it would go horiz. or vert. as needed. One side of the beam naturally wanted to be one way, of course, so by pulling the rope he could go the "other" way and tie off the rope with a hook. Releasing the rope caused the beam to "flop" back into its natural position. He later installed an electric actuator
to do this job. Pretty neat. However, it still doesn't have a rotor, that's still being done by the "armstrong" method (stepping out on the deck and hand-turning the thing. LOL!  |
Starface
Intermediate Member
Username: Starface
Post Number: 105
Registered: 1-2005
| | Posted on Thursday, July 14, 2005 - 12:00 am: |
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just a little hint:
No matter how you put them up to make them last longer run a rope inside the elements .this helps from wind and ice build up.
Till next time
Starface
CEF#476
Southeast Net Control
Auburndale,FL |
Timeslice
New member
Username: Timeslice
Post Number: 6
Registered: 7-2005
| | Posted on Thursday, July 14, 2005 - 10:59 am: |
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Hi,
The best solution is to run two (2) Aerials, one Horizontal and the other Vertical, use a Co-Phase Harness and adopt a 180 degree out of phase arangement between horizontal & Vertical, this way you will achieve TRUE Right-hand Circular Polarisation, perfect for both H&V Phasing of signals..
This is how I run my EME (Earth-Moon-Earth) Array.
Just a thought..
Cheers.
Alex Gold
Timeslice
G7ERX.
CEF#607.
HAM#146.
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Airplane1
Intermediate Member
Username: Airplane1
Post Number: 487
Registered: 5-2004
| | Posted on Thursday, July 14, 2005 - 3:52 pm: |
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Do What? never heard that.Can you explain a bit?
AP |
Bigbob
Senior Member
Username: Bigbob
Post Number: 2045
Registered: 12-2001
| | Posted on Thursday, July 14, 2005 - 6:07 pm: |
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Wait a minute,don't you mean 90 degrees out of phase,you can do the same with both at 45 degrees opposite,then they don't look so goofy,kind of more scientific.Bigbob |
Bigbob
Senior Member
Username: Bigbob
Post Number: 2046
Registered: 12-2001
| | Posted on Thursday, July 14, 2005 - 6:09 pm: |
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Do the same with a crossed yagi or quad antenna.Bigbob |
Hollowpoint445
Advanced Member
Username: Hollowpoint445
Post Number: 550
Registered: 6-2004
| | Posted on Thursday, July 14, 2005 - 7:34 pm: |
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Aerials? How old are you Timeslice? |
Yankee
Advanced Member
Username: Yankee
Post Number: 743
Registered: 7-2003
| | Posted on Thursday, July 14, 2005 - 8:58 pm: |
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Hollowpoint, Timeslice is London England and the Brits call antennas aerials. |
Hollowpoint445
Advanced Member
Username: Hollowpoint445
Post Number: 552
Registered: 6-2004
| | Posted on Friday, July 15, 2005 - 6:08 am: |
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Those crazy Brits! I do love their pronunciation of aluminum though.
My Mom calls antennas aerials and it drives me nuts. She claims that's what they were called when she was growing up. When I told her what aerials actually were she just got irritated with me. |
Slowhand
Junior Member
Username: Slowhand
Post Number: 14
Registered: 7-2005
| | Posted on Friday, July 15, 2005 - 5:48 pm: |
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experiment i tried: I put an old antenna rotor horizontally in the weight center of a 3 element yagi. I used it to rotate the antenna boom, not the mast.
I got some friends to RX my signal and give me a report. Weird results . within 2 miles very little change noticed as I rotated the beam slowly from vert to hor. About 20 miles out, no gradual change,but, as I passed the 45 degree angle at one point, my signal quickly changed like a switch had been thrown. My signal changed to a horizontal polarization. There was very little "in between" polarization.
RX was abit bit different with the gradual results one would expect. |
Slowhand
Junior Member
Username: Slowhand
Post Number: 15
Registered: 7-2005
| | Posted on Friday, July 15, 2005 - 5:49 pm: |
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I forgot to mention it was an 11m antenna on a 40ft rohn tower |
