Shure WA405/WA405E ANTENNA/POWER Distribution System, System Features, Controls and Connectors

WA405/WA405E ANTENNA/POWER DISTRIBUTION SYSTEM

The Shure Model WA405 (and WA405E 230 Vac model) combines an amplified antenna distribution system and dc power distribution system into one compact unit. The WA405 uses two antennas, splitting the wireless transmitter signals to feed as many as four diversity wireless micro- phone receivers. Signal amplification compensates for in- sertion loss.

In addition, four 12 Vdc outputs on the WA405 provide a combined current of up to 2 amps to power up to four Shure diversity wireless microphone receivers, eliminating the need for external power supplies. The built-in, high-efficien- cy switching power supply accepts mains voltages from 100 V to 120 Vac (WA405) or 230 Vac (WA405E) with the ap- propriate ac power cord. The WA405 is supplied with a de-

tachable, 3-conductor power cord with a 3-pin grounded U.S. type ac connector. The WA405E is supplied with a pow- er cord with a Schuko connector at the mains end.

When planning a multiple microphone installation, keep in mind that each microphone must transmit on a different frequency, and that frequencies must be selected in accor- dance with system characteristics. Contact your Shure deal- er for further information and assistance.

The WA405 is designed for use with Shure Model WA380 or WA490 Half-Wave Antennas and Model WA421 Extension Coaxial Cables or other high-quality 50 Ω coaxial cables. The WA405 can also be used with the quarter-wave antennas supplied with wireless systems. See Selecting An- tennas in the System Installation section of this guide.

SYSTEM FEATURES

•Expandability. Allows up to four wireless receivers to	•Insertion Loss Compensation. Whenever a signal is
use the same two antennas.	split to multiple output ports, there is a loss in signal
•Compatibility. Compatible with all wireless microphone	strength known as Insertion Loss. The WA405 amplifies
receivers operating from 169 to 240 MHz.	signals to compensate for this phenomenon, ensuring a
	strong signal to the receivers.
•Dc Power OUTPUT Ports. Up to four receivers can be
	•Front-Mounted Antennas. The WA405 comes with
powered from the WA405 dc power output ports.
	hardware to front-mount the antennas, which increases
•Low Noise and Intermodulation Distortion. Main-
	accessibility and keeps antennas free from entangle-
tains clean signals with minimal distortion.	ment with cables on the back of the unit.

CONTROLS AND CONNECTORS

Front Panel (Figure 1)

￿ ￿ Ê ￿

Ê

￿

Power Switch.	￿	Bulkhead holes for front-mounting antennas (insert
LED Power Indicator.		provided hole plugs when not in use).

Back Panel (Figure 2)

	￿	￿	￿	￿
	￿			￿
￿	Rf output ports, channels A and B, connectors for up to			￿ÐDc power output connectors for distributing power to
	four wireless receivers.			wireless receivers.
￿ÐAntenna input connectors, channels A and B.				￿ÐAc power input

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