Lectrosonics VRM2WBL

The receiver is comprised of several components:

The master rack mount host assembly

Up to six receiver modules

Built-in antenna multicoupler with loop-thru output

Software for setup and control

Flexibility is the core concept of the design. The receiver modules can be operated separately, each with switched diversity reception for a total of six audio channels, or operated in pairs for more robust diversity reception with one audio channel per module pair. Combinations can also be used for special applications where some mod- ules operate independently and others are paired.

The receiver modules are easy to change with no tools required. The wideband multicoupler allows the use of any frequency module in any position, except when mod- ules are paired for ratio diversity reception.

A major benefit of the design is the inclusion of a high quality antenna multicoupler. The multicoupler is actually a dual 1 in, 7 out splitter with six outputs for the receiver modules and an additional output as a "loop thru" for an- other Venue receiver. This allows multiple Venue receiv- ers to operate from a single pair of antennas. Phantom power for remote antenna amplifiers is available from the multicoupler antenna inputs via menu selection.

Digital Hybrid Wireless is a revolutionary design that combines digital audio with an analog FM radio link to provide both out- standing audio quality and exemplary, noise-free RF performance. Using a patented algorithm to encode 24-bit digital audio information in the transmitter into an analog format, the encoded signal is then transmitted over an analog FM wireless link. At the receiver, the signal is then decoded to restore the original digital audio. This process eliminates compandor artifacts and produces an audio frequency response flat to 20 kHz.

• Six-channel modular configuration

• Ratio or Antenna Phase diversity reception

• 3-block tuning for up to 76 MHz and 3072 synthesized UHF frequencies per receiver module

• IR port for quick transmitter setup

• DSP emulation modes for compatibility with analog wireless systems in addition to the Digital Hybrid mode

• iQTM dynamic tracking filters for enhanced RF performance

• Wireless DesignerTM setup and control software included

• Talkback function with select transmitters

• Ethernet, USB and RS-232 computer interface ports

OPERATING FREQUENCIES:

• Tuning range A1: 470.100 - 537.575 MHz (blocks 470, 19, 20)

• Tuning range B1: 537.600 - 614.375 MHz* (blocks 21, 22, 23)

• Tuning range C1: 614.400 - 691.175 MHz (blocks 24, 25, 26)

• Tuning range D1**: 691.200 - 767.975 MHz (blocks 27, 28, 29)

*North American transmitter models exclude the radio astronomy band from 608 to 614 MHz.**Export only. Not available in the US.

FREQUENCY SELECTION:

Up to 3072 frequencies

FREQUENCY SELECTION STEPS:

Selectable; 100 kHz or 25 kHz

DIGITAL LATENCY:

1.5 mS (receiver only - hybrid mode), 3.0 mS (receiver and transmitter in hybrid, mode), 3.0 mS (receiver only - analog compatibility mode)

WIDEBAND MULTICOUPLER:

Built in antenna mulitcoupler covers a 230 MHz range.

PILOT TONE:

25 to 32 kHz; 5kHz deviation; unique pilot tone frequency for each selected carrier frequency (Hybrid mode)

DEVIATION:

± 75 kHz (max) (Hybrid mode)

RECEIVER TYPE:

Triple conversion superheterodyne

FREQUENCY STABILITY:

±0.001 %

MULTICOUPLER BANDWIDTH:

470 - 691 MHz or 537 - 768 MHz

FRONT END BANDWIDTH:

iQ filter wide mode: 15 MHz, iQ filter narrow mode: 10 MHz

SENSITIVITY (20 DB SINAD):

0.9 uV

AM REJECTION:

>60 dB, 2 uV to 1 Volt, Image and Spurious

REJECTION:

85 dB

THIRD ORDER INTERCEPT:

iQ filter wide mode: +5 dBm, iQ filter narrow mode: +12 dBm

DIVERSITY METHODS:

Antenna Combining Phase switching, Opti-blendTM ratio diversity

FM DETECTOR:

Digital pulse counting detector @ 300 kHz

FREQUENCY RESPONSE:

32 Hz to 20 kHz (+/-1dB), overall system (400 Series mode)

THD:

0.2% (typical) (400 Series mode)

INPUT DYNAMIC RANGE:

125 dB (with full transmitter limiting)

AUDIO OUTPUT LEVEL:

-15 dBu to +8 dBu, in 1 dB increments

LCD:

High resolution graphical display

POWER REQUIREMENTS:

10 VDC/2A to 18 VDC/1.2A

WEIGHT:

4.4 lbs. (1984 grams) with six modules

DIMENSIONS:

19"W x 1.75"H x 7.75"D (panel to rear jacks) (48.26 cm x 4.45 cm x 19.67 cm)