Sirio Antenne SU 370-490 User manual

DESCRIPTIONDESCRIPTION
MOUNTING INSTRUCTIONSMOUNTING INSTRUCTIONS
ID120
REMARK:
Be careful during installation do not use
too much strenght but tighten the metal
ring Aby means of the suitable tool.
TIGHTENING TORQUE: 4 Nm ± 10%
ATTENZIONE:
Porre attenzione durante l'installazione.
Non serrare con troppa forza ma avvitare
l'anello metallico Autilizzando la chiave
adeguata. COPPIA DI SERRAGGIO:
4 Nm ± 10%
NOTE:
!Use the curves just as a guide. For fine-tuning please use an SWR-Meter.
HI-QUALITY ANTENNAS MADE IN ITALY
A
UHF colinear antennas for mobile service covering the full band of 368-490 MHz by cutting. The
spring radiator is available in 17/7 PH stainless steel or black chromed with a nylon reinforce to get
the maximun strength and flexibility. They can be supplied with "SL" mount for hole installation or
magnetic mount for temporary fitting.
SPECIFICATIONSSPECIFICATIONS
Electrical Data
Type : 1/4 l+ 1/2 l colinear
Frequency Range : from 368 to 490 MHz tunable by cutting
Impedance : 50 WUnbalanced
Radiation : Omnidirectional
Polarization : Vertical
Gain : 3.5 dB ref. to a l/4 whip
Bandwidth @ SWR £1.5 : ³20 MHz @ 368 MHz
SWR @ res. freq. : £1.2
Max Power : 100 Watts
Feed System / Position : Direct / Base
Standard Mount : “SL” UHF, mounting hole Æ19 mm, cable 5m RG 58
Alternative Mount : MAG H 12 S magnetic mount, cable 3.6m RG 58 w/ PL259-m
Mechanical Data
Materials : Stainless Steel, Nylon,Chromed Brass
Height (approx.) : 745 mm
Weight (approx.) : 420 gr
ATTENTION: cutting diagram valid only for SL mount
TYPICAL TUNING DIAGRAMS
"SL" Mount
Æ1”-1/2
Æ39 mm

SU 370-490
UHF Mobile Antenna 368-490 MHz
SU 370-490
BCopyright SIRIO antenne - Technical Data are subjected to change - Printed in ITALY - Rev. 13/04/2006 - Cod. ID120
TYPICAL TUNING DIAGRAMS
HI-QUALITY ANTENNAS MADE IN ITALY
SU 370-490 SU 370-490 Black
ATTENTION: cutting diagram valid only for MAG H 12 mount
NOTE:
!Use the curves just as a guide. For fine-tuning please use an SWR-Meter.
Æ91 mm