SECTION 9
PA-28-181, ARCHER III SUPPLEMENT 16
ISSUED: JULY 12, 1995 REPORT: VB-1611
REVISED: JANUARY 2, 2001 5 of 6, 9-93
SECTION 9
PA-28-181, ARCHER III SUPPLEMENT 16
ISSUED: JULY 12, 1995 REPORT: VB-1611
REVISED: JANUARY 2, 2001 5 of 6, 9-93
SECTION 7 - DESCRIPTION AND OPERATION (continued)
Aircraft Radios and Navigation
Pressing NAV1, NAV2, DME, ADF (16) or MRK (2) selects each audio
source. A second button press deselects the audio.
Speaker Output
Pressing the SPKR button (12) selects the aircraft radios over the cabin
speaker. The speaker output is muted when a COM microphone is keyed.
PA Function
The PA mode is activated by pressing the PA button (11). Then, when either
the pilot’s or copilot’s microphone is keyed, the corresponding mic audio is
heard over the cabin speaker. If the SKR button is also active, then any selected
speaker audio is muted while the microphone is keyed. The SPKR button does
not have to be previously active in order to use the PA function.
Intercom System (ICS)
Intercom volume and squelch (VOX) are adjusted using the following front
panel knobs:
• Left Small Knob - Unit ON/OFF power control and pilot’s ICS volume.
Full CCW detent position is OFF.
• Left Large Knob - Pilot ICS mic VOX squelch level. CW rotation
increases the amount of mic audio (VOX level) required to break squelch.
Full CCW is the “HOT MIC” position (no squelch).
• Right Small Knob - IN position: Copilot ICS volume. OUT position:
Passenger ICS volume.
• Right Large Knob - Copilot and passenger mic VOX squelch level. CW
rotation increases the amount of mic audio (VOX level) required to break
squelch. Full CCW is the “HOT MIC” position.
• PILOT Mode - This mode isolates the pilot from everyone else and
dedicates the aircraft radios to the pilot exclusively. The copilot and
passengers share communications between themselves but cannot
communicate with the pilot or hear the aircraft radios.
• CREW Mode - This mode places the pilot and copilot on a common ICS
communication channel with the aircraft radios. The passengers are on
their own intercom channel and can communicate with each other, but
cannot communicate with the crew or hear the aircraft radios.
SECTION 7 - DESCRIPTION AND OPERATION (continued)
Aircraft Radios and Navigation
Pressing NAV1, NAV2, DME, ADF (16) or MRK (2) selects each audio
source. A second button press deselects the audio.
Speaker Output
Pressing the SPKR button (12) selects the aircraft radios over the cabin
speaker. The speaker output is muted when a COM microphone is keyed.
PA Function
The PA mode is activated by pressing the PA button (11). Then, when either
the pilot’s or copilot’s microphone is keyed, the corresponding mic audio is
heard over the cabin speaker. If the SKR button is also active, then any selected
speaker audio is muted while the microphone is keyed. The SPKR button does
not have to be previously active in order to use the PA function.
Intercom System (ICS)
Intercom volume and squelch (VOX) are adjusted using the following front
panel knobs:
• Left Small Knob - Unit ON/OFF power control and pilot’s ICS volume.
Full CCW detent position is OFF.
• Left Large Knob - Pilot ICS mic VOX squelch level. CW rotation
increases the amount of mic audio (VOX level) required to break squelch.
Full CCW is the “HOT MIC” position (no squelch).
• Right Small Knob - IN position: Copilot ICS volume. OUT position:
Passenger ICS volume.
• Right Large Knob - Copilot and passenger mic VOX squelch level. CW
rotation increases the amount of mic audio (VOX level) required to break
squelch. Full CCW is the “HOT MIC” position.
• PILOT Mode - This mode isolates the pilot from everyone else and
dedicates the aircraft radios to the pilot exclusively. The copilot and
passengers share communications between themselves but cannot
communicate with the pilot or hear the aircraft radios.
• CREW Mode - This mode places the pilot and copilot on a common ICS
communication channel with the aircraft radios. The passengers are on
their own intercom channel and can communicate with each other, but
cannot communicate with the crew or hear the aircraft radios.
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