Telex TR-16, TT-16 manual Enhanced Dynamic Range E.D.R. Operation, Lock Out, Audio Monitor

Enhanced Dynamic Range (E.D.R.) Operation

The Telex TT-16 Transmitter is equipped with E.D.R., Enhanced Dynamic Range (companded) au- dio. This mode greatly improves the Audio Signal to Noise Ratio when used with the Telex Model TR-16 receiver. The E.D.R. mode must be selected on both the transmitter and receiver to be effective. If using the TT-16 with TR-34 IFB units, E.D.R. must be turned off.

1)To engage the E.D.R. function, turn the TT-16 off with the power switch. (The power switch must be held for 1 second to turn unit off.)

2)Press and hold the SET button while you turn the TT-16 back on. The E.D.R. symbol will be dis- played in the lower right corner to indicate the mode is active.

3)Repeat the procedure to disable the E.D.R func- tion.

Lock Out

The TT-16 SET button can be locked to prevent E.D.R. activation, and unintended channel changes.

1)To engage the Lock Out Feature, press the UP and DOWN buttons at the same time and hold them down for two seconds.

2)The padlock symbol will appear and the set but- ton is disabled.

3)To unlock the system, press the UP and DOWN buttons and hold them for two seconds or until the padlock symbol disappears.

Audio Monitor

Turn the Monitor (volume) control all the way down (counterclockwise). After the audio input levels have been adjusted, Stereo headphones with a 3.5

mmor ¼ in. plug can be plugged into the Monitor jack. If you wish to monitor the audio program ma- terial, turn up the monitor (volume) control to the desired level. The monitor control does not affect the transmitted audio level.

MULTIPLE SYSTEM INSTALLATIONS: As with any radio device, interference can occur at any time. The frequencies offered are shared with other legitimate users. The severity of interference varies with the distance to the interfering station. Multiple systems further complicate installations. The follow- ing steps are suggested in order to achieve best re- sults in your installation.

1.In order to determine whether your selected fre- quencies have minimum interference, Telex rec- ommends that you first temporarily install the receivers in your proposed setting and monitor the channel for interference. To do this (with fresh batteries installed) turn on your receiver, but DO NOT turn on any other receiver or trans- mitter at this time. If audible interference is pres- ent, this may indicate another user on the channel. Monitoring should be repeated for each channel that you propose to use. DO NOT use channels that have interference.

2.Set your transmitter(s) to channels with no or minimum interference. Each transmitter must be set to a separate frequency. For best results when using multiple transmitters, each transmitter should be installed separately as far as possible from the others.

3.Turn on the transmitter(s) with an active audio input. Test walk a receiver through the expected listening area to verify coverage. The system should now be ready for use.

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