Sirio SKB 901 Installation Manual

ALTERNATIVE CABLE CONNECTION

”MAG MOUNT“ DIMENSIONS

37mm

SKB 901 1/4

UHF Mobile Antennas 824-960 MHz

Ø 41mm

S

SIRIO

B Copyright SIRIO antenne - Technical Data are subjected to change - Printed in ITALY - Rev. 27/01/2021 - Cod. ID276

antenne

HI-QUALITY ANTENNAS MADE IN ITALY

SKB 901 1/4

SKB 901 1/4 MAG

SPECIFICATIONS

MOUNTING INSTRUCTIONS

Electrical Data

Type : 1/4 l
Working Frequency : 824-960 MHz (for AMPS, ISM and GSM systems)
Impedance : 50 W
Radiation : Omnidirectional
Polarization : Linear Vertical
Gain : 0 dB ref. to a l/4 whip
SWR @ res. freq. : £ 1.2 : 1
Max Power : 30 Watts (CW)

Feed System / Position Direct / Base :
Standard Mount : "ML" mount / “CELL MAG”, magnetic mount

Mechanical Data ML-mount

Materials : Chromed Brass, Stainless Steel,Rubber
Height (approx.) : 92 mm (3.23 in)
Weight (approx.) : 240 gr (0.53 lb)
Cable Type / Length : RG 58 C/U Mil C17 / 5m; 16.4 ft (other length on request)
Cable connector : FME-female (other type on request)
Mounting Hole : Æ 14 mm (0.55 in) or Æ 18 mm (0.7 in)

Mechanical Data CELL MAG mount

Materials : Stainless steel 17/7 PH, Chromed Brass, Nylon
Height (approx.) : 92 mm (3.43 in)
Weight (approx.) : 220 gr (0.5 lb)
Cable Type / Length : RG 58 C/U Mil C17 / 3m; 9.8 ft (other length on request)
Cable connector : FME-female (other type on request)
Mounting : Magnetic installation

TYPICAL S.W.R. RESPONSE

S.W.R.

3.0

2.8

2.6

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0
800

Model: SKB 900 1/4

824-960 MHz band

900

File: F-13-007

f.(MHz)

1000

1.1

1.2

2.1

2.2

Mounting from the outside

1.1 Drill a 18 mm hole, deburr it and

protect it against corrosion. Unscrew part

push it upwards together with part

B

C

and hold it tightly.

1.2 Insert the base into the mounting hole
and decentralize it. Insert the plastic fish­plates D of part C into the hole. Screw on
part B with a 20 mm open-end wrench.

The ring nut B is tightened correctly,
if the upper edge of part A is at the
same height as the inner thread-bolt

Mounting from the inside

2.1 Drill a 14 mm hole, deburr it and

protect against corrosion. Loose part B and
use the item E.
Insert from below part F into the hole up
to the stop.

2.2 Push part A,B and E from above and
screw them on with a 20 mm open-end
wrench.

Part B is tightened correctly, if the
upper edge of part A is at the same
height as the inner thread-bolt.

S

Id276

SIRIO

antenne

HI-QUALITY ANTENNAS MADE IN ITALY