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PST-DDR5 - 6 - 7

Assemblyng instructions:

The antenna can be assembled in different ways:
Assemble it on two sawhorses and then carry it on the mast or pre-assemble the elements and then complete 
the assembly on the mast.
In both cases it is preferable to prepare before the elements and then the boom. If possible, given the 
delicacy, the supply lines it is preferable that they are installed with the antenna on the mast already.
Extracting elements from the carton, you will find the element tubes pre-assembled elements, in a telescopic 
set. Tilt the tube set, make sure that all heads of each diameter escape from the main pipe. 

Do not forget to 

lubricate the thread of steel bolts, left to dry may stiff them.

Place the element on a plan, and begin to asembly the smaller diameter,
Align the hole of the inner tube with hole of the outer tube. The fastening of the elements takes place by 
inserting the bolt from the larger  hole so that the cylindrical bolt head pass thoroughly and rests on the inner 
tube fig.2. Some sections are multi-perforated to facilitate the adjustment, always start from the center hole, 
and then shorten or lengthen it if antenna is too long or too short.
Using the same technique, extract and splicing all sections and traps.
Tighten the nut. Make sure that all bolts heads are on the same side. 

The central element of the Director and  radiator are pre-assembled on the boom mounting plate already. It 
will then be attached to the boom with square U bolt.
The traps are equipped with drainage holes that need to be down. 

When the two half-elements are ready, prepare the two radiators center plate as in the photo and drawing. 

Summary of Contents for PST-DDR5

Page 1: ...ent on a plan and begin to asembly the smaller diameter Align the hole of the inner tube with hole of the outer tube The fastening of the elements takes place by inserting the bolt from the larger hole so that the cylindrical bolt head pass thoroughly and rests on the inner tube fig 2 Some sections are multi perforated to facilitate the adjustment always start from the center hole and then shorten...

Page 2: ...low The fixing baseplate of the elements holder and the mast boom plate were replaced with square U bolts Alimentazione Boom 40x40mm Profilo U80x40mm RF in 10 15 20m 40m radiator Left Balun 1 1 Right Coupling lines see as top transparent view 12 17m 30m radiator ...

Page 3: ...tenna view after assembling PST DDR5 PST DDR6 30 PST DDR6 40 PST DDR7 Boom 40x40mm Mast ø48mm ø50mm U bolt 12 17m 30m radiator Rotating radius 5 3m Rotating radius 4m Rotating radius 6m Rotating radius 6m ...

Page 4: ...ations Bands 10 15 20m 40m 12 17m 30m rotating dipole antenna as decent performance in 6m too Gain 0dB Impedence 50 ohm Front back about 0dB Front side 20dB ROS see grafics Boom lenght 1m Rotating radius about 4 to 6m depends from which model you choose Weight about 10 to 18 kg depends from which model you choose Take 40 to 50mm mast pipe series o 60mm optional Material AL6060T6 SS hardware SWR ma...

Page 5: ...Single band SWR curves SWR diagram can change due environment influence Install at heights lower than recommended might not work on lower bands 18m 20m 12m 30m 15m 10m 40m ...

Page 6: ...njured or killed The antenna must be installed in accordance with laws regulations local national If necessary consult a professional installer Prosistel cannot be sued for damages for any non compliance with the rules Thanks for your preference in our products If you are satisfied tell others if you are not satisfied tell us The positive or negative comments help us to improve our work 73 de IK7M...

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