CTI Products TSAM Transmitter Steering & Audio Matrix - Manual (Page 63)

TSAM Installation and Maintenance Rev. 2.10 Chapter 7
CTI Products, Inc. Tone Timing Diagrams
55
6. Level Setting
After the physical TSAM installation and initial cabling checkout have been completed, all system levels
should be measured and adjusted as necessary.
When setting up the TSAM, make all level measurement either directly on the audio input or output lines,
or from the metering test points that are accessible from the front panel of the TSAM. The metering test
points are designed to accept standard multimeter test probes. Refer to Figure 14 for the location of
required test points.
Figure 14 Level Adjustment and Test Point Locations
6.1 Tone Keying Generator Level setting
The tone keying generator is adjusted at the factory and does not normally need to be reset in the field.
To Adjust the Keying Tone Generator Level
1. Remove front panel of the TSAM.
2. Attach an AC voltmeter to the TONE 1 (TP104) test point and ground.
3. Key the Main channel base and hold.
4. While PTT is depressed set the TONE 1 output to 0 dBm (775mV RMS).
5. Verify the 0dBm level at TONE 2 test point (TP105) while keying the secondary channel.
6.2 Console 1 & 2 TX Audio Input Adjustment
Console transmit audio is routed from the console to the TSAM TX audio inputs. The TSAM has two TX
inputs. Input C1 is the Main channel audio and input C2 is the secondary audio. To set the audio inputs,
follow the procedure below for your console.