Chapter 6: HOW-TO Function GUIDE:
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VFO Frequency Entry
All VFO frequency entry is done using the DTMF Keypad microphone. The
precision of RX frequency you are allowed to enter is based on the FREQ STEP
SIZE. For example, if the FREQ STEP SIZE is 10,000 Hz, then you need to enter
the first 5 digits of the frequency. If it is 12500, then you need to enter the first 6
digits. Once the required number of digits entered is satisfied, a good beep is
emitted and the radio programs the PLL. As the frequency is entered, only certain
numbers are allowed in certain of the frequency fields. For example, each
frequency entry must start with a ‘2’. If the wrong digit is entered in the current
field, the radio will emit a ‘bad’ beep. If an entry is not made within 3 seconds of
each other, the entry times out and the previous frequency is displayed.
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Storing a Channel to Memory
Channel frequencies are stored in VFO mode only. The VFO power setting at the
time of storage is what is stored for the memory channel.
While the RX frequency to store is displayed, Press-and-hold the SELECT button
for approx 2 seconds. The moment the SELECT button is pressed, the radio will
enter memory mode and display the current memory channel. However, if the
SELECT button is held, the radio will emit a ‘good’ beep and redisplay and store
the VFO channel in memory and append “-MEM” to the entry. The channel is
stored in the nearest vacant channel space at the top of the memory map. You
are now in Memory mode. To return to VFO mode, press the SELECT button.
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Deleting a Channel from Memory
Deleting a channel is done only in Memory mode.
While in memory mode and on the memory channel you’d like to delete, press and
hold the SELECT button for approx 2 seconds. The moment the SELECT button is
pressed a good beep is emitted and the radio enters VFO mode. The radio
displays the VFO frequency. However, continue to hold the SELECT button until
another good ‘beep’ is emitted. At this point the memory channel is deleted from
memory. You are now in VFO mode. To return to MEMORY mode, press the
SELECT button.
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Sending DTMF tones while Transmitting
Simply PTT the radio and press the 0-9, A, B, and C while transmitting. The DTMF
tones will modulate the carrier.
16
Summary of Contents for BCM-220
Page 1: ...BCM 220 User Manual By BridgeCom Systems Inc...
Page 27: ...APPENDIX A Terminal Description 27...
Page 31: ...NOTES 31...
