| Author |
Message |
    
Deadkey447
Junior Member
Username: Deadkey447
Post Number: 11
Registered: 5-2004
| | Posted on Tuesday, May 23, 2006 - 8:24 pm: | 
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Sirio antenna has what looks to me is a copy of a sigma 4.does anyone have experience with this antenna? How well is it built? it's also 31 ft. wow. Thanx |
Road_warrior
Senior Member
Username: Road_warrior
Post Number: 1506
Registered: 7-2004
| | Posted on Wednesday, May 24, 2006 - 6:36 am: |
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Had a Sirio (Sigma 4) up in 1989.
Cheaply built and does not take high winds
or bad weather very well.
Gave it to a friend who wanted to fix it
back up. The bottom hoop section rolled off the
back of his truck on to the highway.
Doesn't take that very well either.
 |
Deadkey447
Junior Member
Username: Deadkey447
Post Number: 12
Registered: 5-2004
| | Posted on Wednesday, May 24, 2006 - 5:30 pm: |
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Hey Road Warrior, so basically it's a cheap copy of a sigma 4? |
Road_warrior
Senior Member
Username: Road_warrior
Post Number: 1509
Registered: 7-2004
| | Posted on Wednesday, May 24, 2006 - 9:00 pm: |
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I never owned an Orignal Sigma 4 to compare
the two.  |
Road_warrior
Senior Member
Username: Road_warrior
Post Number: 1514
Registered: 7-2004
| | Posted on Wednesday, May 24, 2006 - 10:59 pm: |
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Any antenna with such a long length (31ft) is
gonna break sooner or later. A good 5/8
wave or .64 wave will do just as good
and even better with Dx conditions.
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Deadkey447
Junior Member
Username: Deadkey447
Post Number: 13
Registered: 5-2004
| | Posted on Thursday, May 25, 2006 - 5:28 pm: |
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i here ya warrior but you know what they say (bigger is better). |
Road_warrior
Senior Member
Username: Road_warrior
Post Number: 1531
Registered: 7-2004
| | Posted on Friday, May 26, 2006 - 10:41 am: |
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Actually- NO!
Antennas on 27 mhz start to lose gain after
23-24ft in length.
Your better off with a 5/8 wave/.64 wave.
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Bruce
Senior Member
Username: Bruce
Post Number: 3882
Registered: 9-2003
| | Posted on Friday, May 26, 2006 - 1:05 pm: |
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Road warrior is right .... |
Deadkey447
Junior Member
Username: Deadkey447
Post Number: 14
Registered: 5-2004
| | Posted on Friday, May 26, 2006 - 4:39 pm: |
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than why would a company build an antenna that is a height of 31ft. if it becomes less efficient after 23 -24ft? |
Road_warrior
Senior Member
Username: Road_warrior
Post Number: 1535
Registered: 7-2004
| | Posted on Friday, May 26, 2006 - 5:13 pm: |
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$$$$$$$$$$$$
Everyone thinks the bigger the better!
But, it's not true in this case.
Same reason why antenna companies dream-up
high gain figures. To sell antennas! |
Pogo12
Member
Username: Pogo12
Post Number: 50
Registered: 3-2005
| | Posted on Tuesday, June 27, 2006 - 11:34 pm: |
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Its not a bad antenna.Its not quite as good as a sigma4.It is weaker made where the coax connector goes. Its easy to bend up top but look at the imax2000 it dosent stay exactly straight either.To me the hoop is held better than a sigma4.It is just as broadbanded as the sigma4.If you use pipebands and silicone to keep it togeather it will work even bent. |
Cdrive
New member
Username: Cdrive
Post Number: 1
Registered: 7-2006
| | Posted on Monday, August 21, 2006 - 11:46 pm: |
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I recently installed Vector 4000 install was very easy other then a one hole was not drilled and a missing screw.
On the other hand once it was put together I had 1:1 match first try so I was happy about that considering it was 104F outside, can not complain about performance it is fantastic however would I buy this antenna again the answer has to be NO: it is far to weak I use lines to keep it in the air so the wind does not rip it to peices.
I intend to replace it asap as I live in mobile home park and can not risk having it crash into my neibors house.
Next Stop Maco  |
