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5 Controls and functions
Front panel
5-1 On/Off power switch
This button, located in the upper left corner of the front
panel, switches the set on and off and selects the SETUP
menu for general configuration of the receiver and setting
of the clock and timer facilities.
name for a tuning mechanism, in this operating manual it
is referred to as the MAIN DIAL.
The receiver tunes in a very smooth manner with
increments as small as 2.655 Hz. Excellent tuning
dynamics increase the rate of tuning depending upon how
fast the tuning control is rotated and the mode of reception.
It is possible to electronically lock the main dial to prevent
accidental tuning. A lock indication (reversed L) is
displayed on the LCD in this case.
5-4 Fast tuning button
To switch the receiver on, connect a suitable power source
and press the power switch
for about one second.
To switch the receiver off, press the power switch
TWICE, or use the
soft-key from the SETUP menu.
When switched off, whilst the receiver is still connected to
its adapter, the clock time display will continue with a dim
backlight.
FAST tuning increases the speed of tuning when using
the main dial. The letter F is displayed after the kHz of the
frequency display when fast tuning is selected - the
button switches this mode on and off. If tuning in automatic
synchronous AM, the fast tuning mode is cancelled
automatically when the receiver samples frequency and
locks onto the transmission.
5-2 Liquid Crystal Display (LCD)
Display of operating condition is provided by a high
contrast, green backlit, dot matrix LCD. Information
includes frequency, mode, bandwidth etc. Menu legends
for the controls beneath the display are also provided along
with an accurate 70 segment signal strength meter
(S-meter).
5-3 Main rotary tuning control
- MAIN DIAL
The large rotary tuning control is prominently located to
the right of the front panel. This control changes the
received frequency up and down. Often referred to as the
VFO (Variable Frequency Oscillator), a rather historic
5-5 Mode selection buttons
The mode selection buttons are located in the top right
corner of the front panel. They select all of the available
modes in sequence: Dat (data reception), CW, LSB, USB,
AM, Snc (synchronous AM) and NFM, the sequence then
repeating. The current mode is displayed to the right of
the frequency readout on the LCD.
AR7030 OPERATING MANUAL
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