SECTION 9
PA-28-181, ARCHER III SUPPLEMENT 15
SECTION 4 - NORMAL PROCEDURES
To operate as an Automatic Direction Finder:
• OFF/VOL Control - ON
• Frequency Selector Knobs - SELECT desired frequency.
• ADF SPEAKER/PHONE Selector Switch (on audio control panel) -
SELECT as desired.
• OFF/VOL Control - SET to desired volume level.
• ADF Mode Control - Select ADF mode and note relative bearing on display.
ADF Test (Pre-flight or In-flight):
• ADF Mode Control - Select ADF mode and note relative bearing on display.
• Press the TEST button and note the pointer moves to 90° from its prior
position. Excessive pointer sluggishness, wavering or reversals indicate a
signal that is too weak or a system malfunction.
To Operate BFO:
• OFF/VOL Control - ON
• Frequency Selector Knobs - SELECT desired frequency.
• ADF SPEAKER/PHONE Selector Switch (on audio control panel) -
SELECT as desired.
• ADF Mode Control - Select BFO mode.
• OFF/VOL Control - Set to desired volume level.
SECTION 5 - PERFORMANCE
No change.
SECTION 6 - WEIGHT AND BALANCE
Factory installed optional equipment is included in the licensed weight and
balance data in Section 6 of the Pilot’s Operating Handbook and Airplane
Flight Manual.
ISSUED: JULY 12, 1995 REPORT: VB-1611
REVISED: JANUARY 2, 2001 3 of 6, 9-85
SECTION 9
PA-28-181, ARCHER III SUPPLEMENT 15
SECTION 4 - NORMAL PROCEDURES
To operate as an Automatic Direction Finder:
• OFF/VOL Control - ON
• Frequency Selector Knobs - SELECT desired frequency.
• ADF SPEAKER/PHONE Selector Switch (on audio control panel) -
SELECT as desired.
• OFF/VOL Control - SET to desired volume level.
• ADF Mode Control - Select ADF mode and note relative bearing on display.
ADF Test (Pre-flight or In-flight):
• ADF Mode Control - Select ADF mode and note relative bearing on display.
• Press the TEST button and note the pointer moves to 90° from its prior
position. Excessive pointer sluggishness, wavering or reversals indicate a
signal that is too weak or a system malfunction.
To Operate BFO:
• OFF/VOL Control - ON
• Frequency Selector Knobs - SELECT desired frequency.
• ADF SPEAKER/PHONE Selector Switch (on audio control panel) -
SELECT as desired.
• ADF Mode Control - Select BFO mode.
• OFF/VOL Control - Set to desired volume level.
SECTION 5 - PERFORMANCE
No change.
SECTION 6 - WEIGHT AND BALANCE
Factory installed optional equipment is included in the licensed weight and
balance data in Section 6 of the Pilot’s Operating Handbook and Airplane
Flight Manual.
ISSUED: JULY 12, 1995 REPORT: VB-1611
REVISED: JANUARY 2, 2001 3 of 6, 9-85
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