yamanx1
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27A boomerang balcony
Limited space 11m antenna
27A Boomerang Balcony
Sirio Boomerang 27A Balcony Antenna for CB radio.
• CB Radio Balcony or temporary installation antenna
• Omni-directional
• Factory tuned at mid-band
• Tuneable by length adjusting
• Main whip made of aluminium alloy 6063 T-832 and tapered glass fibre radial with inside helical winding
• Type: 1/4 boomerang
• Frequency range: 27-28.5 MHz
• Impedance: 50O unbalanced
• Radiation (H-plane): 360° omni-directional
• Polarization: vertical
• Gain: 0 dBd, 2.15 dBi
• Bandwidth at S.W.R. 2:1:
• S.W.R. at res. freq.: = 1.2:1
• Max. power : 200 Watts (CW) continuous, 600 Watts (CW) short time
• Feed system / Position: Direct / centre
• Connector: UHF-female
• Materials: Aluminium, Steel, Nylon, Glass fibre, Copper
• Wind load : 33 N at 150 Km/h
• Wind resistance: 140 Km/h
• Wind surface: : 0.03 m²
• Height (approx.) : 3670 mm
• Weight (approx.) : 720 gr
• Radial length (approx.): 1130 mm
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18/Nov/2008, 10:01 am
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yamanx1
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Registered: 09-2007
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Karma: 5 (+5/-0)
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Re: 27A boomerang balcony
I thought I would write my review of this antenna first, to get it out of the way 
This is likely to be the worst performing 11m band antenna I have ever come accross. SWR ing the thing took ages up and down a ladder as not only does the small adjustment on the ground plane alter the swr, but the angle of the thing does as well.
Once I got a semi decent SWr, I found it was incredibly narrow and outside of the 40 channels 27/81 the swr went up.
I couldnt hear stations that I could hear before, even off of a mobile antenna fixed to the garage roof! It wouldnt get out nearly as well as the mobile antenna. Also I noted that it was directional. I suppose this should be fairly obvious considering its configuration.
My advice is dont go near these with a barge pole unless you need a big dummy load
Scores 1 out of 5 (For scrap value)
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18/Nov/2008, 12:51 pm
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26fb010
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Re: 27A boomerang balcony
what an antenna??.... you would more likey achieve better results by shoving a pair of scissors into your eyeballs !!
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9/May/2009, 10:50 pm
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). It is tricky to SWR as the tiniest of movements in the bottom adjuster really make big diferences. I have got into europe using it indoors and have had some groundwave about 8 miles away(i live on a hill too).
