AOR AR5000 User Manual download pdf (Page 22)

PAGE 22 AR5000 OPERATING MANUAL

LCD inviting you to enter the value for step-adjust (2 kHz

in the example). Press

Press once more to return to VFO mode. You

will note the static legend “STEP-ADJ” to confirm that

step-adjust is in operation.

Key in the start frequency (145.210 MHz in this example)

by pressing

Change frequency using the

MAIN DIAL

keys to confirm correct operation.

6-8 FREQUENCY OFFSET

This facility enables receive frequency to be quickly

SHIFTED (two key presses) by pre-determined margin,

which makes it easy to track duplex-transmissions or check

repeater inputs / outputs.

Offset frequencies may be factory pre-programmed into

the automode bandplan data for some world market areas.

Frequency offset may also be programmed manually.

Setting up an OFFSET FREQUENCY

Before the FREQUENCY OFFSET facility can be used,

it first needs to be configured (unless factory programmed

for certain bands).

1. To activate the frequency offset set-up menu press

then press and hold the

key for more than

one second.

Example of display:

OFF

+ 45.000000 02

+ 0.600000 01

Offset frequency can be selected between the ranges of

0 to 999.999999 MHz and OFF. Available offset

frequencies can be allocated into special storage locations

numbered from 01 to 47. Number 00 is always treated

as OFF and cannot be overwritten.

Locations 20 to 47 are reserved for factory pre-

programming. These locations may be recalled and the

positive / negative frequency shift altered using the

key but new numeric frequency offsets may not be stored.

Locations 01 to 19 are available for the operator to store

new frequency offsets.

00 OFF

01 ~ 19 Available for storage of new offsets

20 ~ 47 Reserved for factory pre-programming

Having a number of frequency offset set-ups programmed

ready for retrieval makes the facility even more useful

when changing between frequency bands which have

different duplex or repeater frequency offsets.

2. While the “FR-OFS” legend is flashing on the display

to indicate that the frequency offset menu has been

selected, rotate the SUB DIAL to select a new (blank) location

(i.e. 02).

3. Enter the offset frequency via the numeric keypad in

MHz (i.e. for 600 kHz press

. The LCD

will return to VFO, MEMORY, SCAN or SEARCH mode,

whichever was previously in use.

4. If editing a previously stored offset frequency it is

possible to select whether the offset should be up (+) or

down (-) from the displayed frequency. If the frequency

entered was new, simply re-enter the setup mode by

pressing

then holding the

key for more than

one second. Press

to toggle the direction of the

offset either “+” or “-”, confirmation will be displayed on

the LCD. To accept any changes press

Note: The direction of frequency offset “+” or “-” selected

using the

key has global effect on all OFFSET

locations. The default is “+”.

Activating frequency offset

To activate frequency offset press

. The

legend “FR-OFS” will be displayed on the LCD above the

“MHz” legend to confirm operation. The displayed receive

frequency will change to reflect the offset value and the

receiver will monitor the new displayed frequency.

To deactivate frequency offset key

again, the

“FR-OFS” legend will be removed from the LCD and the

receiver will revert to the original frequency. See above

(item 4) for selection of “+” or “-” offset.

Note: The use of frequency offset will take the AR5000

out of automode. To reactivate automode press and hold

the

key for more than one second, the legend

“AUTO” appears on the LCD to confirm that automode

has been reactivated.

Frequency offset with memory channels

All of the above may appear rather long-winded, however

the facility comes into its own when the frequency offset

is stored into memory along with other data such as receive

frequency, mode etc during normal memory write (see

section 7 of this manual), no special sequence is required.

When written to memory both the frequency offset and

direction of offset are stored for quick recall.

6-9 Changing receive mode (AUTOMODE)

As mentioned earlier in this manual, the specification for

step and mode are allocated by departments of

Government following International discussions. Like step

size, the receive mode has been pre-programmed at the

factory to simplify operation of the receiver while you

familiarise yourself with all the facilities.

Should you wish, the defaults may be manually overridden

at any time so that an alternative receive mode can be

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AOR AR5000 User Manual Page 22

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