PRO.SIS.TEL. PST152VC Assembling Instructions

Vertical hf multi band trapped antenna

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Vertical HF multi band trapped antenna PST152VC - VF
Assembling instructions:
After unpacking antenna, you will find the main antenna tubes pre-assembled already, following
diameter steps.
Tilting it down, do in the way to have all tubes heads coming out from the main tube.
Assembly them as in the picture below.
Lightly lubricate the threads of all bolts before installing (the steel tends to be nailed very easily).
The fastening of the elements takes place by inserting the bolt from the wider hole side so that the
bolt cylindrical head passing thoroughly sit and and rests on the inner tube as show fig.1.
Tighten the nut. Make sure that all bolt heads are on the same side.
Using the same way, extract and connect all sections, less than the larger diameter that has to be
assemblend before on the antenna base and then proceed to final assembly.
When all diameters are assembled, insert the set of traps in the sequence 10m, 15m and terminal
end. Traps have drainage holes that need to look down.
All the sections of tubing and the tip, have multiple holes that serve to make small tuning touches
on the various bands. Some parts are pre-assembled and pre-calibrated, if needed remove the bolt
and move the tuning point. Calibrate the antenna starting with the highest band and proceed to the
lowest bands. Longer elements lower frequency, shortening elements increase frequency.

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Summary of Contents for PRO.SIS.TEL. PST152VC

  • Page 1 Vertical HF multi band trapped antenna PST152VC - VF Assembling instructions: After unpacking antenna, you will find the main antenna tubes pre-assembled already, following diameter steps. Tilting it down, do in the way to have all tubes heads coming out from the main tube.
  • Page 2 After completing the assembly of the radiator, proceeding to the assembly of the base which presents a whole series of holes, which have to be equipped and prepared following the pictures sequence. Install the 8 bolts 4x25MA in the holes in X shape and 4x16 bolt in the side hole as pictures. Correct assembling sequence for all the bolts: bolt, serrated washer, normal nut, two flat washers and self-locking nut.
  • Page 3 With the aid of the U bolts, install the base on the supporting pole and install the solid radials. The U bolt is 50mm wide, it can get poles or tubes from 40 to 50mm. If radials rows being installed, take care doing the work as they can also heavily influence the final tuning.
  • Page 4 SWR diagram for each one band. Note: antenna could be influenced on all bands or on some one band from local environments. If possible avoid to install it close to metal object parallel to antenna radiator. If necessary, start the tuning operation from the higher band and step up moving to the next band. Average usable bandwidth using version with solid radials: 20m = ~ 240Kc/s 15m = ~ 500Kc/s...
  • Page 5 Main antenna parts drawing version 10-20m The antenna length can change in according with setting and/or possible environmental influences...
  • Page 6 For improvements and technical - production, specifications and design are subject to change, without affecting the final pourpose of the product. Solid radials Specifications may change without notice. Dear customer, thank you for purchase a Pro.Sis.Tel. if you are happy with it please talk to everybody, if you are unhappy with it please talk with us.

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