Piper ARCHER III Pilot Operating Handbook page 298

SECTION 9
SUPPLEMENT 17
7 - DESCRIPTION AND OPERATION (continued)
4. DME ON/OFF SWITCH - Turns DME power on or off.
5. DME MODE SELECTOR SWITCH (NAV 1, HOLD, NAV 2) - Selects
DME operating mode as follows:
NAV 1 - Selects DME operation with NO. 1 VHF navigation set; enables
channel selection by NAV 1 frequency selector controls.
HOLD - Selects DME memory circuit; DME remains channeled to station to
which it was last channeled when HOLD was selected and will continue to
display information relative to this channel. Allows both the NAV 1 and
NAV 2 navigation receivers to be set to new operational frequencies without
affecting the previously selected DME operation.
In the HOLD mode there is no annunciation of the
VOR/DME station frequency. However, an annunciator
light located above the HOLD position of the selector
illuminates to inform the pilot that the DME is in the
HOLD mode.
NAV 2 - Selects DME operation with NO. 2 VHF navigation set; enables
channel selection by NAV 2 frequency selector controls.
REPORT: VB-1611
9-98 4 of 4
Mode Selector Switch
Figure 2
NOTE
PA-28-181, ARCHER III
ISSUED: JULY 12, 1995
REVISED: JANUARY 2, 2001