T6T VHF 100 W Transmitter
Page 10
Operation
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Line Level Setting
The input line level setting displayed on the front panel is equivalent to the average speech level with a
peak-to-average ratio of 13 dB. This corresponds to the level specified for the lines.
When testing the transmitter using a sine wave, the line input level should be set to 10 dB above the line
level setting. The VOGAD and mute thresholds are preset at 10 dB and 15 dB respectively below the line
level setting.
Table 4 shows the relationship between the input line level, VOGAD threshold and mute threshold.
Table 4 Relationship Between Line Level, VOGAD Threshold and Mute Threshold
Line Level Setting
(dBm)
Average Speech
Level (dBm)
Sine Wave Level
(dBm)
VOGAD Threshold
(dBm)
Mute Threshold
(dBm)
+10
+10
+20
0
-5
+5
+5
+15
-5
-10
0
0
+10
-10
-15
-5
-5
+5
-15
-20
-10
-10
0
-20
-25
-15
-15
-5
-25
-30
-20
-20
-10
-30
-35
-25
-25
-15
-35
-40
-30
-30
-20
-40
-45
Summary of Contents for T6T
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