Model A15TG
User Guide
MODEL A15TG MICROPHONE LEVEL TONE GENERATOR
The Shure A15TG Tone Generator is a battery-powered 700 Hz signal
source that can be used to troubleshoot low-impedance, balanced-line
microphone inputs.
The A15TG includes a recessed On-Off switch and a three-pin XLR audio connector. A removable 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-Off 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.
©2009 Shure Incorporated
27C8430 (Rev. 7)
Printed in U.S.A.
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).