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The pre-programming of step size may be manually overridden so you may choose alternative settings
at will or when band plans are updated.
If you wish to change the default tuning frequency step, press the [
STEP]
key. The LCD will display the
current frequency step and the blinking “STEP” while waiting for the new parameter. Use the sub dial to
select the desired step.
To accept the displayed tuning step size, press the [
MHz
] key.
The tuning step size may also be programmed in 1 Hz (2 Hz over 3.15 GHz) (via the keypad) so that
unusual step sizes other than those stated are possible. The acceptable step size range is less than 1 MHz
in 1 Hz steps (or 2 Hz over 3.15 GHz).
3-8 IF BANDWIDTH
The IF bandwidth selects how SELECTIVE the receiver will be when monitoring signals off air. However,
it is not simply a case of using the narrowest filter at all times; particular modes require differing amounts
of bandwidth in order to operate. Otherwise the receive system will not produce intelligible sound.
Correct receive mode and IF bandwidth must always be selected for optimum reception. If the bandwidth
selection is too narrow, distortion or signal break-up may occur. If the bandwidth selection is too wide,
adjacent interference may be encountered. For this reason, a selection of IF filter bandwidths are provided
as standard.
Содержание AR6000
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