Sirio Antenne SKA 108-500 User manual

BCopyright SIRIO antenne - Technical Data are subjected to change - Printed in ITALY - Rev. 25/05/2006 - Cod. ID373
SKA 108-500
VHF Mobile Antenna 108...500 MHz Stainless steel whip
SKA 108-500
HI-QUALITY ANTENNAS MADE IN ITALY
MATCHING & BANDWIDTH DIAGRAMSMATCHING & BANDWIDTH DIAGRAMS
TUNING INSTRUCTIONSTUNING INSTRUCTIONS

A
Æ1”-1/2
Æ39 mm
DESCRIPTIONDESCRIPTION
1/4 lmobile antenna covering the frequency range of 108...500 MHz by using the enclosed
cutting diagram. It is made of black chromed stainless steel and all its metallic components are of
brass to get the maximum strength. Its "SL-S" mount with the spheric joint allows the whip to be
tilted without screw or nut.
SPECIFICATIONSSPECIFICATIONS
TUNING INSTRUCTIONSTUNING INSTRUCTIONS
ID373
MOUNT INSTALLATIONSMOUNT INSTALLATIONS
"SL-S” Mount
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%
HI-QUALITY ANTENNAS MADE IN ITALY
Electrical Data
Type : 1/4 l
Frequency Range : from 108 to 500 MHz tunable by cutting
Impedance : 50 W
Radiation : Omnidirectional
Polarization : Linear Vertical
Gain : 0 dB ref. to a l/4 whip
Bandwidth @ SWR £ 2 : see diagram
SWR @ res. freq. : see diagram
Max Power : 100 Watts
Standard Mount : “SL-S”, mounting hole Æ19 mm, cable 5m RG 58
Mechanical Data
Materials : Stainless Steel 17/7 PH, Nylon, Chromed Brass
Height (approx.) : 710 mm
Weight (approx.) : 360 gr
L
NOTE:
!Use the curves just as a guide. For fine-
tuning please use an SWR-Meter.