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by switching the function selector to ANT
and listening for station call letters.
231 39 38
231 28
30
Silver Crown Plus Pilot’s Guide
Electrical Storms
In the vicinity of electrical storms,
an ADF Indicator pointer tends to swing
from the station tuned toward the electrical
discharges. Location of the storm
can be useful information, but the erratic
behavior of the pointer should be
taken into account.
Night Effect
This is a disturbance particularly
strong just after sunset and just after
dawn. An ADF indicator pointer may
swing erratically at these times. If possible,
tune to the most powerful station
at the lowest frequency. If this is not
possible, take the average of pointer
oscillations to determine relative station
bearing.
Mountain Effect
Radio waves reflecting from the surface
of mountains may cause the pointer
to fluctuate or show an erroneous
bearing. This should be taken into
account when taking bearings over
mountainous terrain.
Coastal Refraction
Radio waves may be refracted
when passing from land to sea or when
moving parallel to the coastline. This
should be taken into account when
operating near coastal areas.
15
KX 155A/165A
KX 155A and KX 165A
VHF Communication/Navigation Transceivers
FIGURE 1A
KX 155A and KX 165A (25 kHz Versions) CONTROL FUNCTION
Active Comm
Frequency
Standby Comm
Frequency
Active Nav
Frequency
Standby Nav
Frequency
“T” Indicates Mic Button is Being Depressed
“R” Indicates Squelch is Open by Received Signal
Photocell Provides
Automatic Display
Dimming
Nav Frequency
Select Knob
Nav Mode
Button
Nav Frequency
Transfer Button
Nav Audio
Volume Control.
Pull to Hear
Morse Code
Nav Ident.
Comm Frequency
Select Knobs
Comm Frequency
Transfer Button
Channel
Button
On/Off Comm
Volume Knob.
Pull to disable
Comm Receiver
Automatic Squelch.
Push in for
Automatic Squelch.
Active Comm
Frequency
Standby Comm
Frequency
Active Nav
Frequency
Standby Nav
Frequency
“T” Indicates Mic Button is Being Depressed
“R” Indicates Squelch is Open by Received Signal
Photocell Provides
Automatic Display
Dimming
Nav Frequency
Select Knob
Nav Mode
Button
Nav Frequency
Transfer Button
Nav Audio
Volume Control.
Pull to Hear
Morse Code
Nav Ident.
Comm Frequency
Select Knobs
Comm Frequency
Transfer Button
Channel
Button
On/Off Comm
Volume Knob.
Pull to disable
Comm Receiver
Automatic Squelch.
Push in for
Automatic Squelch.
8.33K
6
FIGURE 1B
KX 165A (8.33 kHz Versions) CONTROL FUNCTION
NOTE: The 25 kHz and 8.33 kHz versions of the KX 165A are distinguishable
from one another in two ways. The 25 kHz version has “PULL 25K” nomenclature
below the Comm Frequency Select Knobs while the 8.33 version has
“PULL 8.33K”. In addition, the 25 kHz version has two digits to the right of the
decimal in the Comm frequency while the 8.33 kHz version has three digits to
the right of the decimal. The 8.33 kHz channel spacing is required for flight in
certain European (ICAO EUR Region) airspace.
KX 155A and KX 165A Operation (25 kHz Versions)
All controls required to operate the KX 155A and KX 165A are located on the unit front
panel.
16
Silver Crown Plus Pilot’s Guide
FIGURE 2
Frequency entered in
standby display
FIGURE 3
Active/standby frequencies toggle
FIGURE 4
Frequency entered in active entry mode
COMM Transceiver
Rotate the VOL knob clockwise
from the OFF position. Pull the VOL
knob out and adjust for desired listening
level. Push the VOL knob back in to
actuate the automatic squelch.
The left portion of the digital display
readout is allocated for COMM ACTIVE
and COMM STANDBY frequencies with
a “T” between them to indicate TRANSMIT
and an “R” to indicate RECEIVE
modes of operation.
Select the desired operating frequency
in the standby display by rotating
the Frequency Select Knobs either
clockwise or counterclockwise. A clockwise
rotation will increment the previous
frequency while a counterclockwise
rotation will decrement the previous frequency.
　
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