User Manual

Axell Wireless Limited

Technical Literature

L.A. M.T.A. Remote Sites

Document Number 80-301401HBKM Issue No. 1 Date 13/06/2008 Page 22 of 148

07-005754 Specification

Parameter Low Pass Port High Pass Port

Passband Frequencies 70 to 175 MHz 380 to 500 MHz

Insertion loss <0.5dB <0.5dB

Return loss >14dB typical >14dB typical

Isolation between Bands >60dB >60dB

Impedance 50 ohm

Power rating 50W

operation

-20C to +60C

Temperature

range

storage

-40C to +70C

RF Connectors SMA (female)

Weight <1kg

3.3.5.5. 30dB Directional Coupler (07-018005)

The purpose of these couplers is to tap off known portions (in this case 30dB) of RF signal from

transmission lines and to combine them, for example though splitter units for different purposes

(alarms/monitoring etc.), whilst maintaining an accurate 50: load to all ports/interfaces throughout the

specified frequency range. 07-018005 is a Uni-Directional device and as such will only couple 30dB of

signal in one direction.

07-018005 Specification

PARAMETER SPECIFICATION

Frequency Range 70 MHz - 1000MHz

Mainline Insertion Loss <0.5

Coupling Loss 30 dB

VSWR Mainline Better than 1.3:1

Impedance 50 ȍ

Power Handling (CW) 100W

Outline (W x D x H) 176mm x 104mm x 24mm (ex. connectors)

Connectors N (female) on all ports

Case Material Aluminium