
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