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Posted: 12/12/2011 4:42:31 PM EST
Ive been thinking about building some sort of mobile portable antenna mast with a 2 inch receiver to set off the back of my truck/jeep or trailer . Right now I keep a mil tent pole kit under my tool box that will get me up almost 40 feet but it require guy wires that high and doesnt go up as quick as I would like . I was thinking about building a 2 inch extension that goes up to the height of my truck roof rack and have a swivel so I can lay it down across the top of the cab . If I build the mast myself I was going use a section of 12' 3 inch aluminum in a piece of 6" 24' piece of aluminum for starters. If that felt stable enough I was going to go up higher with some fibrglass . Well I went to pick up a piece of 6' stock today and there was none do to thieving scrappers so that killed that plan . So is there any thin on the market that will not kill the bank that I could hang a 80m 14 gauge dipole off of and a 2m/440 jpole above it . I go camping alot and want to play with my radio stuff but some camp sites are hard to set up a guyed mast.
Link Posted: 12/12/2011 8:12:02 PM EST
[Last Edit: 12/12/2011 8:15:26 PM EST by KB7DX]
These are in 10ft sections, but they make one that uses 6ft sections for shipping.
Rohn telescoping masts
ETA–– I have a 40ft version extended to 33ft. It's attached to the house at 10 feet leaving 23ft freestanding. I have a 40m OCF dipole and 2m/440 ground plane on top. The 20ft version should do fine freestanding with that light load.
Link Posted: 12/13/2011 12:21:45 PM EST
Find an old AB155 military mast kit or:

http://www.tmastco.com/main/page_products_mast_sections.html

I use a dual band dipole for HF (80 and 40) and top it with an old Hygain Th2 two element tribander for 10-15-20. It works great.
Link Posted: 12/13/2011 3:52:11 PM EST
[Last Edit: 12/13/2011 3:55:06 PM EST by pcsutton]
DX Engineering has a kick ass 65' telescoping aluminum mast for under 200 bucks. Depending on how well the bottom is secured...it will get way up there without guying it.

I have a 40 mast up, using the bottom 40' of the 'kit' to suport an inverted L. I put 6' of pvc pipe down inside the top end of it and have about 6' sticking up above the top. I figured the separation would help keep any coupling from occuring. It requires no guys and the bottom is mounted onto an 8 foot 4x4. I use a top and bottom ratchet strap to secure it to the side of my RV.

I use the top 25' seperately for a portable vertical in conjunction with an SC-230 antenna match.

Both work really well.

http://www.dxengineering.com/Parts.asp?ID=2550&PLID=280&SecID=137&DeptID={28CBC4E4-F689-4618-9B6A-47B89A8F4DCA}&PartNo=DXE%2DATK65
Link Posted: 12/13/2011 6:28:47 PM EST
The DX engineering mast is designed to be a verticle element for an antenna, NOT a mast.
Link Posted: 12/13/2011 6:35:22 PM EST
Link Posted: 12/14/2011 7:45:56 AM EST
[Last Edit: 12/14/2011 7:47:49 AM EST by pcsutton]

Originally Posted By pighelmet:
The DX engineering mast is designed to be a verticle element for an antenna, NOT a mast.

I realize that, but it works just dandy as a portable mast if one only uses the lower 40' or so. 40' feet up, it's still about 2 1/2 inch dia tubing. It's not gonna hold an 80 meter yagi and rotator....but it works just dandy to get a wire antenna up.

I use the top 22' section as a vertical, but it's seperated from the lower part.
Link Posted: 12/14/2011 9:56:01 PM EST
Originally Posted By GlockTiger:
One of these

http://www.youtube.com/watch?v=VoYeD1-nEZY


I wonder what the wind-load rating on that is?
Link Posted: 1/4/2012 2:52:46 PM EST
Try a WonderPole. The base plate fits under your tire.
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