1400 Series True Diversity UHF Wireless Systems (DISCONTINUED)

A-T’s rugged and reliable 1400 Series UHF True Diversity wireless systems include a receiver and either a body-pack or a handheld transmitter on a specific crystal-controlled frequency. The all-metal UHF receiver is equipped with detachable front-mount antennas, balanced and unbalanced outputs, ground lift, adjustable squelch, rackmount capability and True Diversity reception. 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.

True Diversity reception with two independent RF sections for greatest reliability

Interference-resistant UHF band operation

Convenient detachable front-mount antennas

Rugged metal receiver housing

Balanced and unbalanced audio output jacks

Ground-lift switch and adjustable squelch

Two receivers can be mounted side-by-side in a single 19" rack space

Power-save switches on transmitters

ATW-T51 UniPak® transmitter includes Super Hi-Z input that provides optimum load for guitar pickups

ATW-T52 handheld microphone/transmitter features a Hi-ENERGY® dynamic element

SYSTEM CONFIGURATIONS

	ATW-1451 ATW-R14 receiver and ATW-T51 UniPak® transmitter. Select a Wireless Essentials® microphone or cable to complete the system.

	ATW-1452 ATW-R14 receiver and ATW-T52 handheld unidirectional dynamic microphone/transmitter.

	ATW-1453 ATW-R14 receiver, ATW-T52 handheld microphone/transmitter, ATW-T51 UniPak® transmitter and AT831cW lavalier microphone.

OVERALL SYSTEM SPECIFICATIONS



Operating Frequency	UHF band, 732 MHz to 746 MHz

Number of Channels	Fixed channel

Frequency Stability	±0.005%

Modulation Mode	FM

Maximum Deviation	±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	45 dB minimum

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

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

Sensitivity	<=20 µV for 60 dB S/N (IEC-weighted)

Audio Output	Unbalanced: 280 mV (at 1 kHz, ±10 kHz deviation, 10k ohm load) Balanced: 160 mV (at 1 kHz, ±10 kHz deviation, 10k ohm load)

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

Power Supply	12-18V DC, 500 mA

Dimensions	8.27" (210.0 mm) W x 1.93" (49.0 mm) H x 9.88" (251.0 mm) D

Weight	2.9 lbs (1.3 kg)

Accessories Included	Two 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	50 mA typical

Battery Life	Approximately 8 hours in High position Approximately 10 hours in Low position

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

Net Weight	3.2 oz (90 grams)

HANDHELD TRANSMITTER SPECIFICATIONS



RF Power Output	50 mW Max

Spurious Emissions	Under federal regulations

Dynamic Range	>=90 dB

Microphone Element	Dynamic unidirectional

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

Current Consumption	50 mA typical

Battery Life	Approximately 8 hours in High position Approximately 10 hours in Low position

Dimensions	9.53" (242.0 mm) long, 2.13" (54.0 mm) diameter

Net Weight	12.3 oz (350 grams)

Accessory Included	AT8431 stand clamp