AR2700 operating manual
31
ignored. This is useful for tuning through bands with unusual modes and
channel steps.
To reinstate PROGRAM step size, the receive MODE must be returned to
“PROG” using the “MODE SET” input sequence which is accessed by
pressing [2ndF] [3].
6-7 Changing receive mode (PROGRAM)
As mentioned earlier (section 6-6 of 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.
The defaults may be manually overridden at any time should you wish to select
an alternative receive mode on any frequency.
To change the receive mode press [2ndF] [3].
The modes may be accessed in order:
“PROG WFM FM AM”, “PROG” refers to
PROGRAM MODE. When “PROG” is
selected, the receive mode and step size
will be selected automatically using the
pre-programmed AR2700 bandplan data
and FM is in fact NFM (narrow FM).
The currently selected mode will be
flashing on the LCD to indicate that a new
mode input is anticipated. Use the UP / DOWN keys or [DIAL] to make a
selection, to complete the process press [ENT]. Should you decide not to
change the mode setting, press [CLR].
Note: PROGRAM-STEP and PROGRAM-MODE are linked to the
pre-programmed bandplan data. When one of the parameters is changed
from the default “AUTO” then the bandplan will be ignored. This is useful for
tuning through bands in unusual modes and channel steps.
To reinstate PROGRAM step size, the receive MODE must be returned to
“PROG” using the “MODE SET” input sequence which is accessed by
pressing [2ndF] [3].
Any receive mode may be selected at any
frequency within the receiver’s frequency
coverage. Generally speaking the
following modes will apply:
AM
Amplitude Modulation - Used by broadcast
services throughout the world on medium
wave and shortwave. AM is also used by
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