Shure Microphone Level Tone Generator A15TG User Manual

MODEL A15TG MICROPHONE LEVEL TONE GENERATOR

The Shure A 15TG Tone Generator i s a battery-powered 700 Hz signal s ource t hat
can be us ed to troubleshoot low-impedance, balanced-line microphone inputs.

The A15TG includes a recessed On-Off switch and a three-pin XLR audio con­nector.* A r e m o vable end cap allows easy battery installation and removal. The
A15TG can also tolerate the presence of phantom power, or a short circuit in
the line it is driving. Built-in short circuit protection allows normal operation to
resume after a short is removed.

BATTERY LIFE

The A15TG can operate continuously for approximately 1000 hours on one

1.5V alkaline battery. To conserve battery power, make sure the On-Of f switch
is in the Off position when the A15TG is not in use.

BATTERY INSTALLATION

1. Unscrew the end cap.

2. Insert the battery with the “+” terminal facing the “+” mark inside the end cap.

3. Reinstall the end cap.

*Mates with Cannon XL series, Switchcraft A3 (Q.G.) series, or equivalent.

Model A15TG

User Guide

27B8430 (BK)

2002, Shure Incorporated

Printed in Mexico

2

SPECIFICATIONS
Output Frequency

700 Hz ±20%, when terminated with 150 Ω

Output Level

–41.5 ±4.5 dBV (8.4 mV typical) when terminated with 150 Ω

Total Harmonic Distortion

5% typical for any output termination greater than or equal to 150 Ω

Output Impedance

<15 Ω

Battery Type

1.5 V alkaline

Temperature Range

Operating: –12° C to 50° C (10° F to 130° F)
Storage: –29° C to 74° C (–20° F to 165° F)

Case

Steel with gray enamel finish

Dimensions

19 mm (

3

/

4

in.) diameter; 141 mm (5

17

/

32

in.) long

Certification

Conforms to European Union directives, eligible to bear CE marking; meets
European Union EMC Immunity Requirements (EN 50 082–1, 1992).