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B
3.1
POWER ON UNIT
To power on the unit, rotate the Volume (VOL) knob clockwise from the OFF position.
When power is activated the Use and Standby (STBY) windows will display the fre-
quencies and/or mode stored in the non-volatile memory before power down. After ac-
tivating power, pull the VOL knob out to override the automatic squelch and rotate the
VOL knob to the desired audio level. Push the VOL knob back in to activate the auto-
matic squelch.
CAUTION:
THE KY 96A, KY 97A SHOULD BE POWERED ON ONLY AFTER EN-
GINE STARTUP. THIS IS A SIMPLE PRECAUTION WHICH HELPS
PROTECT THE SOLID STATE CIRCUITRY AND EXTENDS THE OP-
ERATING LIFE OF YOUR AVIONICS EQUIPMENT.
3.2
TRANSMIT INDICATOR
During Comm transmissions, a TX will appear between the USE and STBY windows
to indicate that the transceiver is in the Transmit mode of operation.
3.3
MODES OF OPERATION
3.3.A.
Frequency Mode
Frequency selection is accomplished in the Standby Entry mode by changing the fre-
quency display in the STBY window of the display with the tuning knobs, and then
transferring the selected frequency into the USE window by pressing the Transfer but-
ton. The larger tuning knob will increment or decrement the MHz portion of the display
in 1 MHz steps with rollover at each band edge (118.000 MHz or 135.975 MHz). The
smaller tuning knob will increment or decrement the kHz portion of the display in 50
kHz steps with the knob pushed in or in 25 kHz steps with the knob pulled out. While
in the Standby Entry mode, the transceiver remains tuned to the frequency displayed
in the USE window at all times.
NOTE:
Extended Frequency units will rollover at 118.000 and 136.975 MHz.
3.3.B.
Channel Mode
Momentarily pressing the Channel (CHAN) button while in the Frequency mode puts
the radio in the Channel mode. The last active frequency remains tuned and displayed
in the USE window. The last used channel number is displayed in the channel digit
unless no channels have been programmed, in which case the radio defaults to Chan-
nel 1 and dashes are displayed in the STBY window. Turning either tuning knob
changes the channel number and corresponding frequency in the STBY window. The
channels will only increment and decrement to channels that have been programmed.
If there has been no activity for five seconds the radio will return to Frequency mode
and the channel frequency is placed in the STBY window. Pressing the CHAN button
Rev 4, Apr 2003
SECTION III
OPERATION
IM 006-00674-0004.dwd
KY 96A, KY 97A
Page 3-1
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