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RTU-292C Operations Manual
2-7
The send and receive levels are set by SW2-1, 2, & 3 as follows:
Table 2-4
Telephone Send/Receive Levels
SW2-1
SW2-2
SW2-3
Level
Off
Off
Off
O dBm
On
Off
Off
-3 dBm
Off
On
Off
-6 dBm
On
On
Off
-9 dBm *
Off
Off
On
-12 dBm
On
Off
On
-15 dBm
Off
On
On
-18 dBm
On
On
On
-21 dBm
Factory default settings are indicated by an asterisk *
2.8.3
VOX HANGTIME
The RTU-292C VOX circuitry holds the radio in the keyed state for a short time after the
telephone audio signal is no longer detected. This delay, called hangtime, ensures that the VOX
is not de-activated between syllables or during short pauses in speech. The standard VOX
hangtime duration is 2.0 seconds. Dipswitch SW2-6 allows the setting of 0.6 seconds hangtime
if required. The factory default setting, SW2-6 On, sets the VOX hangtime to the longer 2.0
second setting, and SW2-6 Off sets it to 0.6 seconds.
Table 2-5
VOX Hangtime
SW2-6
Key Tone Detection
Off
Short 0.6 seconds
On
Long 2 seconds *
Содержание RTU-292C
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