AOR AR2000 Uživatelský manuál stáhnout pdf (Strana 82)

The Top Controls

clockwise until the hiss stops. Once the scanner has gone through a complete

search or scan, without stopping on an inactive frequency, you have the squelch

set properly.

The AR1000 is famous for its touchy squelch controls. The scanner may need a

different squelch setting for different frequency ranges. If you mix frequencies in

a scan bank, you may be compelled to set the squelch at the highest common

denominator, which may cause you to miss other active frequencies. Be sure to

test out the various squelch settings to find the optimum setting for different

frequencies.

Attenuator button

This switch, labeled ATT on the top panel, will reduce the signal received by the

scanner by 10 db (decibels). It can be useful if you receive interference from a

very powerful, nearby station.

You decrease the received signal by depressing the ATT switch. You return

sensitivity to normal by depressing the switch again so it is in the raised position.

If you are searching a band that has a lot of frequencies that stop the scanner,

even with the squelch closed most of the way, you may have better success by

pressing the ATT button and then opening the squelch more. This will let the

strong signals get through but will filter out most of the noise and junk.

Tuning knob

The Tuning knob is a free-turning knob with the labels UP on the left and DN

(down) on the right of the knob. You are tuning up when you turn the knob to

the right, or clockwise. You are tuning down when you turn it to the left or

counter-clockwise.

The tuning knob can be used in three different ways, depending on whether you

are in Search mode, Scan mode, or Manual mode.

Using the Tuning knob while searching

During a search, if you turn the knob in either direction, the search will be halted

on the frequency it was searching at the time you turned the knob, but the

scanner will remain in Search mode. You will also see either the Up or Down

arrow in the display, depending on the direction you turned the knob. If the

frequency you stopped on is active, you will hear it. With each click of the

turning knob you will advance or decrement the frequency by the search bank

increment. You can continue stepping upward or downward through the search

range in this manner. The scanner will still skip over any frequencies that have

been locked within the search bank.

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AOR AR2000 Uživatelský manuál Strana 82