How To Tune; Frequency Display; Select Function - Icom IC-R71A Instruction Manual

SECTION 5 OPERATING INSTRUCTIONS
5-1 HOW TO TUNE
The following instructions are for tuning in any mode.
Please read carefully and understand fully before turning
ON your unit. Proper tuning is necessary for optimum
Operation.
5-1-1 PRESET
When the power switch is turned ON, the frequency display
shows frequency and mode stored in the VFO A, letters
"VFO A" and "01" representing memory channel 1, and
the set operates with the VFO A and displayed mode, even
if the previous operating mode was different.
FOR EXAMPLE
5-1-2 BAND SWITCHING
To change the operating band, push the BAND SELECT
FUNCTION switch in and rotate the TUNING CONTROL.
By turning the TUNING CONTROL clockwise, the operat-
ing frequency changes 1MHz at a time. (100KHz and lower
digits of the frequency will remain as it had in the previous
one.) By turning the TUNING CONTROL counterclock-
wise, the operating frequency lowers 1MHz at a time from
the previous one.
When the band reaches to the highest one, it will auto-
matically return to the lowest one, or vice versa, as per the
following charts.
DOWN: 15.123.4 UP: 15.123.4
\ +
14.123.4 16.123.4
Y 1
13.123.4 17.123.4
+ \
1.123.4 29.123.4
Y \
0.123.4 0.123.4
Y +
29.123.4 1.123.4
Y 1
00.123.4 29.123.4
With the BAND SELECT FUNCTION switch is out, when
the operating frequency reaches the highest or lowest edge,
of the MHz range by turning the TUNING CONTROL
continuously, the operating frequency will go to the next
MHz range.
5-1-3 FREQUENCY DISPLAY ON EACH MODE
When the 7MHz band and AM are selected, the display will
be as follow:
When changing to other modes, the display will be as
follows:
CW:
USB:
LSB:
RTTY:
FM:
The displayed frequency shows the carrier frequency.
To avoid the trouble of recalibrating the dial when you
change the operating mode, the displayed frequency is set
to shift to the carrier frequency of each mode automatically.
For the differences of frequency shifts of the various modes,
refer to the following figure.
The differences of the frequency
of the various modes
5-1-4 TUNING CONTROL
Rotating the TUNING CONTROL clockwise increases the
frequency, while turning counterclockwise decreases the
frequency in 10Hz steps. By turning the tuning control
faster, the 50Hz steps tuning rate is automatically selected.
When the TUNING RATE switch is pushed in, the 1KHz
steps tuning rate is selected in any mode. At this time, the
100Hz digit of the frequency display is cleared to '0'.
By turning the TUNING CONTROL clockwise, the operat-
ing frequency reaches the highest one of that MHz range