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Author Topic: 18 wheeler mobile mount  (Read 831 times)
KD5NTL
Member

Posts: 5




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« on: October 23, 2008, 10:02:18 AM »

I have just installed a high sierra side kick antenna on a 2007 Volvo semi, it appears that the whole trk is made out of fiber glass or a form of plastic, Even the mirror mounts. The problem I'm having is it seems that the my set up (ic 706 mk II G) with the side kick antenna have a   difficult time transmitting across the highway let alone the country or the world. I have used a 5 ft pc of 4 gauge wire from the ant mount to the cab of the trk. Does anyone have any suggestions before I throw this thing in the trash.
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K0BG
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Posts: 9844


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« Reply #1 on: October 23, 2008, 11:09:52 AM »

There isn't much you can do, except put as much metal mass under the antenna as you can. A ground strap is not a substitute as you've found out.

You might want to peruse my web site for better answers.

Alan, KØBG
www.k0bg.com
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W3LK
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Posts: 5644




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« Reply #2 on: October 23, 2008, 11:56:51 AM »

It's not the antenna's fault. You are asking it to perform without the other half of the antenna, ie, the ground plane. Installing HF antennas on big rigs is one of the most frustrating projects around.

FWIW, the Sidekick is OK on 10-40m, but is marginal on 80m. The full size 1800 is a much superior performer.

73,

Lon - W3LK
Naugatuck, Connecticut
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A smoking section in a restaurant makes as much sense as a peeing section in a swimming pool.
N5DXL
Member

Posts: 43




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« Reply #3 on: October 23, 2008, 09:34:29 PM »

Mounting a HF antenna on a big truck hit or miss, and when the truck
is 90% fiber glass just a plan night mare. I use a High Sierra 1800
and have it mounted on my side step just above one of the fuel tanks.
A friend has the Sidekick and mounted his behide the sleeper on the
air line bar.
Another place I've seen the Sidekick mounted was just above the winshield,
for that one you can NOT use a CB antenna mount but will need a hatchback
mount or side mount like the Diamond K400.
Hope this helps.

73,
Tom - N5DXL
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W5ROY
Member

Posts: 39




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« Reply #4 on: October 29, 2008, 03:16:14 PM »

Have someone familiar with welding and fabrication build you a mount that bolts directly to the frame of the truck. This will be a big improvement. Granted that today's plastic trucks are a nightmare, that is why I always preferred a Peterbilt, but they are not much better today. Frame mounting, using star washers everywhere will certainly help. Good luck.  73  de W5ROY  Roy Creiglow
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KB0USY
Member

Posts: 33




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« Reply #5 on: December 01, 2008, 09:20:28 AM »

If you can give me a call At 316.323.0935 asap.I put a similar antenna on kb5uyd's volvo.We did okay had it running in about 30minutes.
Steve kb0usy
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