1100 Series True Diversity VHF Wireless Systems (DISCONTINUED)

Known for outstanding audio quality and reliable performance, this full-rack professional wireless system includes a True Diversity VHF receiver and either a body-pack or handheld transmitter on a specific crystal-controlled frequency. Two antennas feed two completely independent RF sections on the same frequency; automatic logic circuitry continuously compares and selects the superior received signal, providing better sound quality and reducing the possibility of interference and dropouts. The receiver is designed to be mounted in a standard 19" rack (1U).

True diversity reception and full FM deviation

Full FM deviation improves signal/noise ratio for greater headroom and dynamic range

Choice of 20 VHF frequencies

InvisibleLink® circuitry delivers optimum sound quality

Ground-lift switch and adjustable squelch control

Balanced and unbalanced audio output jacks

Receiver mounts in a single 19" rack space

Dual-power battery-save switches on transmitters

ATW-T27 UniPak® transmitter includes Super Hi-Z input that provides optimum load for guitar pickups

ATW-T28 handheld microphone/transmitter features a Hi-ENERGY® dynamic element with superior internal shock mounting

SYSTEM CONFIGURATIONS

	ATW-1127 ATW-R11 diversity receiver and ATW-T27 UniPak® transmitter. Select a Wireless Essentials® microphone or cable to complete the system.

	ATW-1128 ATW-R11 diversity receiver and ATW-T28 handheld dynamic unidirectional microphone/transmitter. Includes stand clamp.

OVERALL SYSTEM SPECIFICATIONS



Operating Frequency	VHF high band, 169 MHz to 216 MHz

Number of Channels	Fixed channel

Frequency Stability	±0.005%, single-frequency crystal-controlled

Modulation Mode	FM

Maximum Deviation	±30 kHz, traveling frequencies ±15 kHz

Operating Range	200' minimum

Operating Temperature Range	40° F (4° C) to 110° F (43° C)

Frequency Response	100 Hz to 15 kHz

RECEIVER SPECIFICATIONS



Receiving System	Dual independent receivers, automatic-switching diversity reception

Image Rejection	>=60 dB

Signal-to-noise Ratio	95 dB at 10 kHz deviation (IEC-weighted), maximum modulation 15 kHz

Total Harmonic Distortion	<=1% (10 kHz deviation @ 1 kHz)

Sensitivity	10 µV for 60 dB S/N (IEC -weighted)

Audio Output	Unbalanced: 350 mV (at 1 kHz, ±10 kHz deviation, 10k ohm load) Balanced: 220 mV (at 1 kHz, ±10 kHz deviation, 10k ohm load)

Output Connectors	Unbalanced: 1/4" phone jack Balanced: XLRM-type

Power Supply	Power Supply 12-18V DC, 350 mA, with provided AC adapter

Dimensions	16.93" (430.0 mm) W x 1.92" (48.8 mm) H x 7.28" (185.0 mm) D

Weight	5.5 lbs (2.5 kgs)

Accessories Included	Two whip antennas, rack-mount adapters, AD1205A AC adapter

BODY-PACK TRANSMITTER SPECIFICATIONS



RF Power Output	50 mW Max

Spurious Emissions	Under federal regulations

Dynamic Range	>=90 dB

Input Connections	High impedance, low impedance, bias

Battery	9V (NEDA type 1604) alkaline, not included

Current Consumption	30 mA typical

Battery Life	Approximately 15 hours in High position; Approximately 20 hours in Low position (depending on battery type and use pattern)

Dimensions	2.56" (65.0 mm) W x 4.33" (110.0 mm) H x 1.00" (25.4 mm) D

Net Weight	2.8 oz (78 grams) (without battery)

HANDHELD TRANSMITTER SPECIFICATIONS



Polar Pattern	Unidirectional

RF Power Output	50 mW Max

Spurious Emissions	Under federal regulations

Dynamic Range	>=90 dB

Microphone Element	Audio-Technica Hi-ENERGY® dynamic

Battery	9V (NEDA type 1604) alkaline, not included

Current Consumption	30 mA typical

Battery Life	Approximately 15 hours in High position; Approximately 20 hours in Low position (depending on battery type and use pattern)

Dimensions	9.50" (241.3 mm) long, 2.10" (53.3 mm) diameter

Net Weight	12.7 oz (360 grams) (without battery)

Accessory Included	Stand clamp