Datasheet

SPECIFICATIONS
BOOMERANG series
27 ..... 30 MHz Tunable Balcony Antennas
HI-QUALITY ANTENNAS MADE IN ITALY
antenne
SIRIO
S
1/4 l Ground Plane Boomerang
27 ... 30 MHz
50
360° Omnidirectional
Linear Vertical
0 dBd - 2.15 dBi
1.2
Direct / Centre
UHF-female
140 Km/h
With bracket supplied
W
£
BOOMERANG W
700 KHz
150 Watts (CW) continuous
450 Watts (CW) short time
Fiberglass, Steel, Copper,
Nylon
45 N
2
0.035 m
3500 mm
1720 mm / 1730 mm
800 gr
BOOMERANG A
1200 KHz
200 Watts (CW) continuous
600 Watts (CW) short time
Aluminium, Fiberglass,
Steel, Copper, Nylon
52 N
2
0.041 m
3900 mm
2750 mm / 1730 mm
880 gr
Electrical Data
Model
Type
Frequency Range
Impedance
Radiation (H-plane)
Polarization
Gain
Bandwidth @ SWR 2
SWR @ res. freq.
Max Power
Feed system / position
Connector
Mechanical Data
Materials
Wind Load @ 150 km/h
Wind Resistance
Wind Surface
Height (approx.)
Radiator / Radial lenght
Weight (approx.)
Mounting Mast
£
BOOMERANG A
BOOMERANG W
ISTRUZIONI DI TARATURA
1. Montare l'antenna:
Boomerang A: stilo L=2750 mm, radiale a 125° circa
Boomerang W: radiale a 170° circa.
2. Verificare la taratura dell'antenna utilizzando un ROS-metro. Se non
tarata per il canale di utilizzo tagliare il radiale 5 mm alla volta fino a
centratura avvenuta.
3. Per la regolazione fine dell'SWR modificare l'angolo di inclinazione del
radiale fino a ottenere il miglior adattamento. Eventualmente modificare la
lunghezza dello stilo verticale e ripetere la procedura dal punto 2.
TUNING INSTRUCTION
1. Install your antenna by following the standard instruction:
Boomerang A: Radiator L=2750mm, Radial at approx 125°
Boomerang W: Radial at approx 170°
2. Check the antenna tuning by using a SWR-meter. If it’s not tuned on the
right channel, you can slightly cut the radial (not more than 5mm per cut)
until you get the center band tuning.
3. For the fine tuning of the SWR you can act on the base radial by
modifying the inclination angle up to get the best resonance. If it’s not
enough you have to act on the main radiator following the procedure of
point 2.
ID048
WARNING
INSTALLATION OF THIS PRODUCT NEAR POWER
LINES IS DANGEROUS. FOR YOUR SAFETY AND
BEFORE YOU BEGIN INSTALLATION, READ THE
SEPAR AT E SAFETY IN F O R M AT I O N SHEET.