MODEL 2820A & 2825A Two Diver Communicator—User Manual

INSTALLATION & OPERATION
Diver PTT Switches (Diver 1 & Diver 2)
Diver Push to Talk switches located below earphone volume control for each diver section. PTT
will allow the specific diver to hear Tender and other divers, it change the diver to be listening and
tender in talking mode.
VOLUME CONTROLS - 4-WIRE (SIMULCOM) 6.8
Turn unit on and adjust volume controls as follows.
Model 2820A
Tender Volume (Control)
Set at mid-scale. While diver is speaking, adjust to a comfortable listening level.
Diver Volume (Control)
Set at mid-scale. Talk to divers, and adjust until divers hear tender at a comfortable
listening level.
Model 2825A
NOTE: The upper row of volume controls, set the microphone volume, the lower row of volume
controls, set the earphone volume. Tender controls are considered master controls. The optimum
settings are when controls are closely matched, with differences compensating for differences in
diver levels.
Volume Controls: Model 2825A
Set all volume controls at mid-scale.
Tender should don headset and talk to himself. If adjustments are required, increase or
decrease volume (controls). This will establish a system volume level.
Tender (Volume Controls):
Earphone Volume - Divers talk, while tender adjusts to a comfortable listening level.
Microphone Volume - Tender talks and divers determine a comfortable listening level,
having the tender adjust as needed.
Diver 1 (Volume Controls):
Earphone Volume - Tender talks and diver 1 determines a comfortable listening level.
Microphone Volume - Diver 1 talks, while tender adjusts to a comfortable listening level.
Diver 2 (Volume Controls):
Earphone Volume - Tender talks and diver 2 determines a comfortable listening level.
Microphone Volume - Diver 2 talks, while tender adjusts to a comfortable listening level.
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