AOR AR5000 User Manual download pdf (Page 14)

PAGE 14 AR5000 OPERATING MANUAL

The key also allows selection On/Off of certain

options while in menus (such as step-adjust) and selects

defaults in other menus.

[MHz] [ENT] - TXT (

Cyber Scan

)

This key has three main applications:

MHz - the key is used to enter frequencies as MHz while

in VFO mode. For example to enter a frequency of 88.300

MHz follow the key sequence

There is no need to add the trailing zeros to the right,

once the

key has been used, the AR5000

microprocessor will automatically add the additional trailing

digits. The display will read “88.300000 MHz”

Note: Frequencies below 3.0 MHz (3000 kHz) will be

displayed as kHz regardless of the entry format. It is

usually more convenient to enter medium wave / long wave

frequencies using the kHz format.

ENT - the key is used as ENTER in

many

operations and

to complete sequences in most menus.

If the

key is held for more than one second while

in VFO mode, the receiver enters memory write mode.

Use the MAIN DIAL to select channel number to be

overwritten, the SUB DIAL to select the memory bank

number or key in the three digit memory location using

the numeric keypad. Pressing the

key will enable text comments of up to eight

characters to be added to each memory channel.

The key sequence

then press and hold the

key for more than one second activates

CYBER SCAN

where scan and search speeds are approximately doubled

(the frequency display is blanked out during

CYBER SCAN

CYBER SEARCH

TEXT - The key sequence

then a brief press of

causes the TEXT COMMENTS to be displayed in

memory recall, scan and search modes

(in place of the frequency readout).

- ANT

This key activates the RF attenuator menu.

An aerial attenuator system allows selection of AUTO,

0dB, 10dB or 20dB. The attenuator control switches

in / out of circuit the RF preamplifier and attenuator

affecting the sensitivity of the receiver. 20dB may not be

selected above 230 MHz. RF gain is also available in all

modes via a front panel rotary control, this is especially

useful in providing optimum audio quality for SSB

operation.

The selection of attenuator is made using the SUB DIAL,

the final selection is accepted by pressing the

key.

The key sequence

activates the aerial

selection menu. The SUB DIAL is used to select input via

either of the two rear panel aerial sockets (ANT 1 for the

N-type input and ANT 2 for the SO239). Additional aerials

may also be controlled via the optional AS5000 switching

unit. AUTO may be selected where the aerial will be

automatically switched based upon the programming of

frequency / aerial data.

The sequence

followed by the key being

held for more than one second activates the M.TUNE

AUTO / MANU RF input preselection for frequencies up

to 999.999999 MHz. The default is AUTO where the

microprocessor controls the RF front end preselection.

However if strong adjacent-channel interference is

experienced, the preselection may manually moved

off frequency

reducing interference. Under this situation

the

on channel

sensitivity will generally be reduced to

some degree, for this reason do not manually tune the

preselector too far away from the start point.

The

keys toggle between AUTO and

M.TUNE with preselection being controlled by the SUB DIAL.

To accept changes press

- CLEAR

The CLEAR key may be used to abort frequency entry

during programming or to escape from a menu. If the

key is held depressed while the receiver is switched

on using the

key, the AR5000 microprocessor will

soft reset

- UP

This key has three functions:

UP - if quickly pressed causes the displayed frequency in

VFO mode to be incremented in an upward direction by

one step. The key may be pressed to force the scan and

search onward past a busy frequency or channel, it may

also be used to reverse the direction of scan and search.

If held for more than one second while in VFO mode,

frequency search

is initiated. If held for more than one

second while in memory recall mode, the

scan

process

will start.

INCREMENT - the key will often increment menu options

such as DTMF to T.ELMT etc. While in TEXT write mode,

the key will move the cursor one space to the right.

BACK SPACE - if an error is made while keying in

frequencies in VFO mode, the

key may be used

to back space delete the entry from the right hand side. If

all digits are deleted, the display will return to the previous

frequency.

- DOWN

If this key is quickly pressed, the displayed frequency in

VFO mode to be incremented in a downward direction by

one step. The key may be pressed to force the scan and

search onward past a busy frequency or channel, it may

also be used to reverse the direction of scan and search.

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AOR AR5000 User Manual Page 14

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