SEA 222 - Front Panel Controls and Operation; Keypad Functions and Basic Operations

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FRONT PANEL CONTROLS:
DISPLAY:
The
eight-digit alphanumeric display provides the operator
with frequency and
channel data.
4 x 4
KEYPAD 16 keys allow the operator to communicate with the computer
which controls radio functions. For simple operation, an
"operator
friendly" software package is used in conjunction
with the
display. All of the keys are listed below.
ENT
Enters
previously keyed data into the computer.
Number Keys
Keys numbered
0 through 9 enter required numerical data
into the computer.
(Arrows)
.....
These keypads permit receiver tuning up or down in 100 Hz
steps.
CH/FR Allows the operator to display either channel number or the
frequency of operation. Example: pressing this key when the
display reads "CHAN 801" causes the display to indicate the
receiver operating frequency 'assigned to
channel number
801 (8718.9 KHz).
SQL
Activates or deactivates the voice operated squelch system.
When the
squelch is activated, the most significant digit in the
display will contain the letter "Q."
EMER
Allows .. operator instant recall of programmed emergency
channels.
TO PUT YOUR SEA 222 IN THE OPERATING MODE:
Turn the volume ON/OFF knob on. The display will read "SEA 222", then
"2182.0."
After three minutes the radio is ready to operate on 2182.0 kHz (to comply
with FCC standards).
TO DIM THE DISPLAY:
Press: any single digit followed by "ENT'' ("O'' being off and "9" being
bright).
Example:
"9", "ENT" (brightest display)
"O", "ENT" (extinguishes display)
Restore display to maximum brilliance by touching any keypad when
display is extinguished.
TO TURN THE AUDIO FEEDBACK OFF/ON:
To turn off the beep, enter any even digit and the "ENT" key.
Example: Press "6", "ENT''.
To turn the beep back on, enter any odd digit and the "ENT" key.
Example: Press "7", "ENT". Note: this modification only affects SEA
222's with serial number higher than X2724.
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