
My Antenna systems .....my "outside" working place!!

System with elevation @ 0°	System with elevation @ 45° tracking Satellite AO-51

Description of the Antenna systems

Tower

Installed in the 1991, self-carrying height 17,5 Mt, completely inspectable, with plan of job to the maximum height and accessibility with duffle-coat system The base of the tower in self-carrying calculation is of 2.5 m3 concrete reinforced with elettrosaldate cages. The distance from the radio station is of 55 mt. (you see transmission cables)

Rotators

Rotator systems are operates in Azimuthal motion and in elevation motion, completely “HomeMade” with n.2 “Bonfiglioli” motoriductors

binds together to n.2 electric motors of 0.35 CV power, piloted at the maximum voltage of 145 V, and lately equipped with an electrical INVERTER to optimizing the movement speed on the 2 axes

The system of survey of the position of the antennas is composed by 2 arranges tracking parallels :
SYNCRO motors that repeat the step “electrical worker” of the movement of the system of antennas
Bound together to potenziometer to the tree of reducers, this system allows to have a comparation on the movement of the antennas and a reference in tension for being able to be managed from a system of microprocessor autotracking

Yaghi and Omnidirectional Antenna

HF Band

Rotative Dipole for 10-15-20 meter band with possibility to change the polarization

1 x Vertical Antenna 40 Mt ( 7 Mhz) home maded 10.3 mt. height

VHF Band

1 x 17 element F9FT Tonnà

2 x 9+9 element polarizzazed RHCP crossed for sat use Tonnà F9FT

UHF Band

1 x 21 element Tonnà F9FT

SHF 1240 - 1268 -1296 Mhz

1 x 23 element Tonnà F9FT

1 x 30 Turns HELIX homemade polarizzated on RHCP

1 x Pannel 1240 mhz wide band ATV reversible polarizzation

1 x LogPeriodic LP345 dual polarizzazztion ( SHF H )

OMNI Antennas

1x Ground Plane, 6 meter (50 Mhz)

1 x collinear 2x4 max Comet ( local net VHF UHF )

1 x collinear X30 Diamond ( Packet VHF e UHF)

1 x triband X7000 Diamond ( voice and satelliteVHF UHF SHF )

1 x vertical 5/8 tuned on 10 meter (28 Mhz)

1 x discone 50-1300 Mhz ( scanners)

1 x discone 25-1300 Mhz ( repeater and local net)

wired Antennas

1 x Sloper 160 Mt band (45 mt lenght )

1 x sloper triband 160-80-40 Mt

1 x dipole 40-80 Mt W3ZZ

1 x dipole 20 Mt band

Audio-video ATV e DATV 2400 Mhz and over

3 x 60 cm disc pol H

1.20 Mt disc homemade pol H

1 x backfire pol H

Transmission Cable

HF Band e 50 Mhz

RG 213 PEE + Relè COAX Motorola (12V) remotizzed to 40 mt vertical e Ground Plane 50 Mhz (6mt)

RG 58 (mt 20) Sloper 160-80-40 Mt + Relè COAX homemade to 20mt Dipole

RT 50-200 Rotative dipole 10-15-20 Mt

RT 50-20 Sloper 160 Mt

RG 213 PEE Vertical 5/8 10 Mt band

RG 8 40-80 Mt W3ZZ dipole

VHF band and Up

RT 50-20 Collinear X30

RG213 PEE Collinear 2x4 MAX

Pope SAT Discone 25-1300 Mhz

Pope SAT Discone 50-1300 Mhz

Pope SAT LogPeriodic LP 345

RT 50-20 Tonna 17 ele. 144 Mhz

CellFlex 7/8'' con remote system 1 x 2 way N-N 28 V. > 432 Mhz 21 ele > 1 x remoter 6 way 4 Ghz N-N Dynatech Telecontrolled 28 V.

to :

X 7000 , 9+9 ele , 30 Turns HELIX , 1240 Mhz panel , 23 Ele , Expansion to a second remotized switch unit actualy in progress

Remotizer Dynatech

Update :

09/16/2007

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