13
Nothing
comes close to a Cobra
®
Frequency
12 English
Frequency
Frequency
•
Three controls and one indicator are used together to set and display the radio
frequency on which your mobile radio will receive and transmit signals. In this
connection, it is important to understand the frequency bands built into the unit
and the way they are displayed on the Dual 7 Segment Display.
The 10 meter frequency range is broken down into four bands on your
mobile radio. These are selected using the Band A / B / C / D knob.
Band
Frequency Range — MHz
A
28.000 – 28.495
B
28.500 – 28.995
C
29.000 – 29.495
D
29.500 – 29.700
Within each band, frequencies can be selected in 5 kHz increments, such as 28.005 MHz
in Band A or 29.455 MHz in Band C. These are selected using the Frequency Selector
knob after the band has been chosen.
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4
Dual 7 Segment Frequency Display
Frequencies are displayed on the Dual 7 Segment Frequency Display using a combination
of numerical figures and decimal points. The figures indicate the first two values after the
decimal point in the frequency, such as the 00 in 28.005 MHz. The right hand decimal point
in the display indicates whether the third value after the decimal point in the frequency is
0 or 5 — if the right hand decimal is visible on the display, the third value is 5; if it is not
visible, the third value is 0. The left hand decimal point in the display (between the two
figures) indicates whether the two values before the decimal point in the frequency are
28 or 29 — if the left hand decimal is visible on the display, the first two values are 29;
if it is not visible, the first two values are 28. Refer to the examples in the following table.
Frequency Display
Frequency
0 0
28.000
0 0.
28.005
0.0
29.000
0.0.
29.005
3 5
28.350
4 5.
28.455
2.5
29.250
6.3.
29.635
Frequency
•
- -
4
Band A / B / C / D
This control selects the desired frequency band.
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4
Frequency Selector
This detented control is a 360º multi-position switch used to increase or
decrease the operating frequency in 5 or 10 kHz steps within the selected band.
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4
+10 kHz / Off
When this switch is in the
off
position, the operating frequency is increased or
decreased by 5 kHz with each click of the frequency selector knob. When it is in
the
+10 kHz
position, faster tuning is available because the operating frequency is
increased or decreased by 10 kHz with each click of the frequency selector knob.
Your Mobile Radio
Your Mobile Radio
Channel Display
88
28/29 MHz
0/5 kHz
