BridgeComSystems BCM-220, User Manual

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CHAPTER 4: QUICK START – GET ME ON THE AIR!
We’ve made effort to make this radio as easy to use as possible. Therefore, by
way of example this quick start procedure should quickly get you on the air talking
on your favorite repeater system.
For this procedure, the radio must be in VFO mode. This is observed by noting a
frequency on the display. Typically, a memory channel will have alpha characters
associated with the channel in the display. Pressing the ‘A’ button on the DTMF
mic or pressing-and-releasing the SELECT knob will toggle between VFO and
Memory mode. Make sure you’re in VFO mode.
Programming for use with a 220 MHz repeater:
In North America, the general split for most 220 repeaters is 1.6 MHz.
Setting RX Frequency:
To enter the desired RX frequency, simply key the frequency into the radio using
the DTMF keypad. For example: Your repeater transmits on 224.140 MHz and
receives on 222.540 MHz and uses a CTCSS tone of 114.8 Hz on the input and
output. To enter 224.14 MHz, use the DTMF Mic keypad. Key in:
2 – 2 – 4 – 1 – 4
The radio will confirm programming with finishing out the remaining zeros a ‘good’
confirm beep.
OFFSET for TX
To enter the 1.6 MHz OFFSET from the RX frequency, follow this procedure:
1. On the Front Panel, press-and-release the
‘
B
’
button to access the radio
’
s
personality menu. The FREQ STEP SIZE will be displayed.
2. Rotate the select knob clockwise until FREQ OFFSET: is on the top line of the
display. The bottom line of the display will be the current OFFSET.
3. Press-and-release the SELECT knob to enter change mode. A good confirm
beep should be heard.
4. Rotate the SELECT knob clockwise or counter clockwise to view –1.6 MHz, 0
MHz, or +1.6 MHz. In our example of 222.54 we want to choose a -1.6 MHz
offset so rotate the SELECT knob to choose
–
1.6 MHz.
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