WMS 40 FLEXX_5.0_neu
02.05.2005
2 Description
2.3 Optional Accessories
2.4 SR 40 FLEXX Receiver
Ask your dealer about usable fre-
quency bands for WMS 40 FLEXX
systems with more than
three channels.
2.4.1 Front Panel Controls
Fig. 1: Front panel controls on
SR 40 FLEXX receiver.
2.4.2 Rear Panel Controls
Fig. 2: Rear panel controls on
SR 40 FLEXX receiver.
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Seite 16
RMU 40 19" rack mounting kit for two SR 40 FLEXX receivers
W 880 foam windscreen for HT 40 FLEXX
The SR 40 FLEXX is a stationary diversity receiver for use with all WMS 40 FLEXX and Microtools Series
transmitters. It features a half-rack case for mounting in a 19" rack.
Operating in the 660 MHz to 865 MHz UHF range, the SR 40 FLEXX provides three selectable, quartz
stabilized carrier frequencies within the 3-MHz-wide frequency band for which you ordered your WMS 40
FLEXX. This allows you to select a different frequency if one of the three frequencies does not provide
adequate signal quality. The frequencies have been factory preset to make sure you can set up a multi-
channel system with up to three channels with three kits operating in the same frequency band. Using a
suitable combination of kits operating in different frequency bands you can even use up to nine channels
simultaneously.
The SR 40 FLEXX is a diversity receiver and uses two antennas in order to receive the transmitter signal
at two different spots. The diversity electronics will automatically activate the antenna that delivers the
better signal.
An adjustable squelch will mute the receiver if the received signal is too weak so the related noise or the
self-noise of the receiver will not become audible when the transmitter is switched OFF.
1 Antennas: Fixed-length UHF antennas permanently mounted on the front panel. The diversity circuit
will automatically activate the antenna that provides the better signal.
2 ON/OFF: On/off pushbutton switch. If the DIVERSITY LEDs A and B flash alternately and the RF
MUTE LED is lit constantly, the receiver is ON but receives no signal.
If the RF OK, AF OK, and only one of the two DIVERSITY LEDs are lit, the receiver is ON and receives
signal.
When you switch the receiver OFF, all LEDs will extinguish.
3 RF LEDS: These LEDs indicate the quality of the received RF signal.
3a OK (green): This LED is lit to indicate that an RF signal of adequate strength is being received.
3b MUTE (red): This LED is lit to indicate that no signal is being received or the squelch is active. In
either case, the audio output will be muted automatically.
4 DIVERSITY LEDs A and B: Indicate which of the two receiving antennas is active at any time.
5 Color code: The color indicates the carrier frequency band of the receiver. Transmitters and receivers
tuned to the same frequency band are marked with the same color. Refer to the Manual Supplement
sheet for a color code table.
6 AF LEDs: Indicate the received audio level:
6a OK (green): -30 dB to +3 dB
6b CLIP (red): >3 dB. This LED illuminates to indicate the audio level of the received signal is over-
loading the receiver's audio section.
The green AF OK LED being lit and the red AF CLIP LED flashing occasionally indicate optimum
modulation.
If none of the LEDs is lit, the gain setting on the transmitter is too low.
7 VOLUME: This rotary control adjusts the receiver's output level from microphone to line level for
matching to the input sensitivity of your mixer or amplifier. The control range is 26 dB.
8 Frequency selector: This slide switch tunes the receiver to one of three different carrier frequencies
within the receiver's carrier frequency band.
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9 Carrier frequency label: A label indicating the name of the carrier frequency band and the three car-
rier frequencies of your receiver is affixed to the rear panel of the receiver.
10 AUDIO OUT/BALANCED: Balanced 3-pin XLR audio output for connecting to, e.g., a microphone
input on the mixing console.
3b
3a
6a
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6b
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WMS 40 FLEXX