AOR AR-ONE User Manual download pdf (Page 15)

AR7030 OPERATING MANUAL PAGE 15

Typical displayed bandwidths for the optional Collins

filters are:-

Collins 500 Hz Displays as 0.7 or 0.8kHz

Collins 2.5 kHz Typically displays as 2.3 kHz

Collins 4.0 kHz Typically displays as 3.5 kHz

When the filter setup is complete, the receiver’s display

returns to frequency readout.

6-3 Memory restoration

If the data retention battery is discharged (refer section 6-

1) then some of the setup memories may contain rubbish

which will cause unusual operation of the receiver. To avoid

this problem the following procedure should be followed

after the filter calibrate operation. It is only necessary to

do this if the clock time has been lost.

From the SETUP menu (press the

button if Setup

is not displayed above the spin-wheel), Rotate the spin-

wheel one click anti-clockwise so that the legend Deflt

Set is displayed then press the

button. The legend

Loaded.. confirms that default settings are in operation.

Rotate the spin-wheel again one click anti-clockwise and

press

(the soft-key legend above the button),

then repeat twice more. This will save default settings in

all three setup memories - the display should show

SetC:Save then SetB:Save then SetA:Save.

Now enjoy !

6-4 Changing receive frequency

There are THREE main ways in which receive frequency

may be selected and tuned, the choice is dependant upon

the type of operation (transportable / desktop) and

personal preference.

a. Main rotary tuning dial

The most obvious method for tuning the receiver is by the

rotary tuning control (main dial). This is the traditional

approach and provides the best human interface to the

receiver.

To increase displayed frequency rotate the main dial

clockwise. In SSB modes the tuning speed is around 1kHz

per revolution for silky-smooth tuning. As the main dial is

rotated more quickly, the receiver steps up the tuning rate,

if the main dial continues to be rotated quickly, so the tuning

speed is increased again and again. Careful attention has

been paid to the tuning dynamics so that the operator is

largely unaware that anything happens and the tuning

speed remains intuitive.

To decrease the displayed frequency, rotate the main dial

anti-clockwise, auto increase in tuning speed operates in

both directions.

Note: The main dial uses a mechanical encoder, and from

time to time, as with all such devices, contact noise may

cause the display to creep up or down very slightly. Should

this happen a tiny movement of the tuning knob will be

enough to clear the problem. The control likes to be used...

give it a few turns once in a while.

FAST TUNING: Should you wish to tune VERY quickly,

such as when changing bands, it is possible to manually

increase the tuning rate of the receiver.

Above-left of the main dial at about the 10 o’clock position

is the

button. Pressing this changes the frequency

display by putting an F (for fast) where the fractions of

kHz digits are normally shown. The tuning rate of the main

dial will be very fast while the F is displayed.

To cancel fast tuning, simply press the button again,

it acts as a toggle.

Note: When tuning in AUTO SYNCHRONOUS AM, the

FAST tuning is automatically cancelled when the self tune

process starts.

b. Numeric keypad

For rapid change to a known frequency, the infrared

controller keypad provides the simplest, quickest and most

accurate route. Frequencies may be entered as MHz or

kHz, there is backspace correction and cancel entry to

further add to convenience.

The numeric keys

to are used in conjunction

with

, , , and . A summary

of key operation is as follows:-

to Used to enter the digits of desired

frequencies.

Used as a decimal separator when

entering frequencies as MHz or kHz.

Used to complete frequency entry as kHz.

Used to complete frequency entry

as MHz.

Used to cancel frequency entry and abort

the process

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AOR AR-ONE User Manual Page 15

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