12.5m GRP Mast "EXTRA" - heavy duty -
This is our 10m Extra with elongation at the top.
total length errected: 12,5 m
transport length: 134cm
diameter bottom without bottom cap: 55mm
diameter of the tip: 8mm
Number of segments: 8
weight: 3,4 kg
strong reinforced segments
comes with black clothbag
Tips for using the telescopic fibreglass masts...
Radio amateurs have been using glassfibre fishing rods for years. The advantages of their construction are their low weight-to-strength ratio, their ease of transport and their easy and quick deployment. However, you should be aware that this material isn't as strong and robust as - for example - aluminium. To ensure the most pleasure from your purchase, please remember the following tips...
When assembling the mast for use you can just pull each segment into place and lock it into position with a gentle turning motion. The lower segments can be locked using quite a bit more force than the upper segments. If you are not planning to use th etip, please remove i BEFORE use: that way you won't damage it by accident when collaping the mast after use. Seal the top of the mast against ingress of water. If the mast is going to be deployed for any length of time you should use adhesive tape to ensure that the mast cannot collapse. Whatever you use, make sure that no sticky residue remains to ruin the friction-locking portion of the segments. Now we have a new solution to fix the segments with a rubber profile and cable ties.
The 4mm top segment of these masts is not suitable for anything other than the lightest of loads - it is NOT suitable for tying off a horizontal wire antenna. Take great care when raising or lowering an extended mast as the top can easily reach the ground and get snapped off. Never forget that this sort of mast exercises a great attraction on children: a mast that is left to lie on the ground is CERTAIN to be broken in record time by somebody treading on it by accident...
Fibreglass is quite flexible under normal circumstances but becomes very brittle below 0c. Make sure that a mast left standing in the winter is properly guyed if it must be left standing at all.
If you do manage to break a segment despite taking all reasonable precautions I will do my best to supply a replacement at a reasonable price.
We recommend for this type of mast:
MAB22 support plate ( fixes at approx. 8,5m height)
MAB34 support plate ( fixes at approx. 5m height)
carabiner stainless 40mm for MAB34/MAB22
rubber profile with cable ties to prevent segments for collapsing
Corolast tape grey 30mm x 10m