1200 Series True Diversity VHF Wireless Systems (DISCONTINUED)

Known for outstanding audio quality and reliable performance, this 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.

True diversity reception with two independent RF sections for greatest reliability

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

Choice of 20 VHF frequencies for minimum interference

Ground-lift switch solves hum problems when ground loops are encountered in the field

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

ATW-T35 UniPak® transmitter includes Super Hi-Z input that provides optimum load for guitar pickups

ATW-T36HE handheld microphone/transmitter features a Hi-ENERGY® dynamic element and internal pneumatic shock mounting

SYSTEM CONFIGURATIONS

	ATW-1235 ATW-R12 diversity receiver and ATW-T35 UniPak® transmitter. Select a Wireless Essentials® microphone or cable to complete the system.

	ATW-1236 ATW-R12 diversity receiver and ATW-T36HE handheld hypercardioid dynamic microphone/transmitter.

OVERALL SYSTEM SPECIFICATIONS



Operating Frequency	VHF high band, 169.505 to 213.800 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	41° F (5° C) to 113° F (45° 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	112 dB at 30 kHz deviation (IEC-weighted), maximum modulation 75 kHz

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

Sensitivity	5.6 µV for 60 dB S/N (IEC-weighted)

Intermediate Frequency	10.7 MHz

Audio Output	Unbalanced: 100 mV (at 1 kHz, ±5 kHz deviation, 10k ohm load) Balanced: 31.6 mV (at 1 kHz, ±5 kHz deviation, 10k ohm load)

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

Power Supply	120V AC 60 Hz; or 12-18V DC, 350 mA, with external supply

Dimensions	8.27" (210.0 mm) W x 1.93" (49.0 mm) H x 8.86" (225.0 mm) D

Weight	3.9 lbs (1.8 kg)

Accessories Included	Two whip antennas; rack-mount adapters

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	35 mA typical

Battery Life	Approximately 10 hours (depending on battery type and use pattern)

Dimensions	2.40" (61.0 mm) W x 4.23" (107.4 mm) H x 1.08" (27.5 mm) D

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

HANDHELD TRANSMITTER SPECIFICATIONS



RF Power Output	50 mW Max

Spurious Emissions	Under federal regulations

Dynamic Range	>=90 dB

Microphone Element	A-T Hi-ENERGY® dynamic hypercardioid

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

Current Consumption	35 mA typical

Battery Life	Approximately 10 hours (depending on battery type and use pattern)

Dimensions	9.27" (235.5 mm) long, 1.49" (37.9 mm) body diameter

Net Weight	8.6 oz (245 grams) (without battery)

Accessory Included	Stand clamp