PRO.SIS.TEL. PST-32 Installation guide

PST-32
Antenna assembling instructions:
Take antenna parts out the box and find the semi-dipole main alluminum tubes. They are pre-assembled
inside the other tubes in a telescopic sequence. Tilt down the main tube end and shake it to have each one
inner tubes heads out for about 15 cm or 6 inch. Make sure to have enou h free space to extend the entire
semi-dipole. Pull out the smaller tube, find the passtrou ht hole on the inner end, make it coincident whith
the passtrou ht hole present on the next diameter tube which has two different diameter holes, from the
lar er hole side insert and push down the hallen screw passin trou ht the inner tube hole, put washer and
selflock nut and screw down.
Make sure to have the bolt head as in the picture below. Do not for et to lubrificate the stainless steel bolts
or nuts before to install them. Any kind of oil or rease is ok.
Do the same way for the other tubes joints. Some inner ends have more holes, they will help you in
tuning antenna on your preferite band section, use the one in the middle for now.
Make sure to have heach one tubes connection havin bolts head on the same side.
When completed, insert on the semi-dipole end the trap set (followin the sequence 10m, 15m) Bolt down
each one tube joint followin the same way used before. Traps sets are pre-assembled already but joints in
between traps, have multi holes on the inner tubes, improvin antenna tunin steps if necessary. Lon er
antenna lower frequency, shorter antenna hi her frequency. Start tunin operations from the hi hest band
Any new tunin step on the hi her frequency will have effect on the other lower bands.
Make sure to have traps drainage holes on the lower side.
D N T seal the joints with adhesive tape or other similar element, the antenna MUST breathe
otherwise you may have serious problems over time due to condensation or moisture.
When the two seeds are ready, prepare the central plate and assemble all the parts as per photo. The
two dipole ends must protrude from the insulator of 2.5cm and a spacin of at least 1cm

Assembling dipole and reflector

main antenna diagram

Connect a 1:1 balun (su ested) usin two short wires, not lon er than 8-10 cm or 3-4 inches
(connctions wires will influence the antenna tunin makin it lon er), if you don’t use a balun, than
use a coax cable choke, open the coax ends to have two short leads like a V no lon er than 3-4 cm
or 1-2 inches, solderin on them two eyelet ends. Don’t for et to insulate and seal coax end from
moisture. (If you don’t have any sealin liquid, use nails paintin and when dry, cover with ood
rubber tape)
(Balun and eyelet ends are optionals not included in the antenna parts)
Balun or coax choke do not improve antenna performance, but reduce the RF presence on the coax
shield reducin the risk of TVI or other RF noise on electronic devices.
When assembled antenna will looks like the one in the picture below.
SWR main diagram

Install antenna on your mast, make sure to have almost 5-6meters or 15-20 ft over the roof or
round. Antenna will have the best performance if installed almost a ¼ wave of the lower frequency
band, over the round.
Usin an antenna analizer or a SWR meter, check the antenna tunin on each band.
Antenna tuning frequency could be influenced from the environmental conditions for which
could became necessary retuning it. If necessary be in from the hi her band (10m), unbolt the
multi holes dipole joints and move to next hole, don’t for et, lon er element lower frequency,
shorter element hi her frequency.
When the tuning operations are completed, check all bolts, make sure that they are well screwed
down.
Speci ications:
- Gain 10-15-20m =4-5 dBd
- Usable band: ~250Kc/s on 20m, Full band on 10 and 15m.
- Impedence = 50 ohm
- F/B = 15-20m about 6-8dB, 10m about 8-10dB
- F/side = >20dB
- SWR = Band limits 1:1,8 (vedi diagram)
- Boom lenght = 2m
- Elements length = about 9m
- Wind area: ~ 0.6m2
- Max wind = 130Km/h
- Weight = 16kg circa
- Accept 40- 48mm mast (series) o 60mm (optional)
- Material = AL6060T6, SS hardware.
WARNING!!!
Do not install the antenna in the vicinity of exposed power lines or other sources of power at
risk of lightning, you may be killed or seriously injured. Make sure anyone does not even
come into contact with it accidental during use
Install the antenna on properly dimensioned supports to hold the load even under stormy
wind conditions.
The fall of all or part of it could hit people and / or things with unrecoverable damages.
In case, the responsibility is to be solely charged by the user.
This manual is an integral part of the product, keep it handy.

Dear buyer,
thank you for purchasing a Pro.Sis.Tel antenna ..
Making it we have used the best materials available on the market, worked and finished
with the best care possible allowed by the state of art.
Use it within the rating for which it was built and will serve you faithfully for many years.
In case of doubts or concerns, our technical department is always ready to provide all the
necessary help.
I you are satis ied with it tell the others, otherwise ...... tell to us.
Your opinion and your suggestions will help us to improve even more our products.
Best regards
Annamaria Fiume IK7MWR
Made in Italy
WARNING! De end the environment
isposing components and materials
The antenna consists mainly of aluminum, in the event of disposal, conferred the scrap to a specialized
disposal center, in compliance with the requirements of local law.