Author |
Message |
Kitesurfer
New member Username: Kitesurfer
Post Number: 5 Registered: 11-2004
| Posted on Tuesday, November 30, 2004 - 1:56 pm: |
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Ok heres the problem. I have a SIRIO HiPower 4000 Now I want to fix it on top of my VW T25 Caravelle camper which has a fibreglass high top on it. On top of this fibreglass hi-top is a stainless tubular rail for strapping a small amount of luggage down. See picture here- http://www.muchos.co.uk/members/Widdgie/Antenna.JPG My question is, as the stainless rail is bolted to a fibreglass top, would some thick wire give a good ground plane from the tubing to the vehicle body? Or would I do FAR better fitting direct to the vehicle body? I rteally would prefer it on top of the vehicle. |
Tech808
Moderator Username: Tech808
Post Number: 4188 Registered: 8-2002
| Posted on Tuesday, November 30, 2004 - 4:47 pm: |
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Picture of the SIRIO Hi Power 5000 Hope this helps. Lon Tech808 CEF808 N9OSN |
Kitesurfer
New member Username: Kitesurfer
Post Number: 6 Registered: 11-2004
| Posted on Tuesday, November 30, 2004 - 5:12 pm: |
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Thats the Vector base antenna I have. That will be for DXing. The question relates to the 'SIRIO highpower 4000' mobile antenna. The link auto generates itself to the above antenna. However if you click the lefy link to 'Mobile antenna' you'll see the Highpower 4000 there. The question is mainly a qeury on the ground plane-ing from the stainless bar to the vehicle body, and wether it would be sifficent to use wire to 'bridge' the two? |
Tech833
Moderator Username: Tech833
Post Number: 900 Registered: 8-2002
| Posted on Wednesday, December 01, 2004 - 3:12 pm: |
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That rail will not be enough ground plane to minimize losses. Obtain some aluminum or copper tape (commonly used to on glass windows to connect to alarm systems and alert when the glass is broken). Use the tape to bond everything on the roof of the camper and also stretch some 'ground planes'. Make at least two of the ground planes at least 9 feet long and you are in business! Also, don't forget to bond the radio ground to the frame of the vehicle to minimize noise. |