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5.3 Making a call
NOTE: Press the [A/B] key to switch the main channel to the other channel if there is 2 channels shown on the display.
Press the [VFO/MR] key to switch between VFO and channel display.
• Channel mode call: After selecting a channel, hold down the [PTT] key to initiate a call to the current channel. Speak into
the microphone with normal tone. Initiate a call, the red LED is on.
• Frequency mode call: Press the [VFO/MR] key to switch to the frequency mode, the frequency range allowed entering,
press the [PTT] key, a call to the current channel. Speak into the microphone with normal tone. Initiate a call, the red LED is
on.
• Receive a call: When you release the [PTT] key, you can answer it without any action.
When receiving a call, the green LED is on.
NOTE: To ensure the best reception volume, keep the distance between the microphone and the mouth at the time of
transmission from 2.5 cm to 5 cm.
5.4 Channel selection
There are two modes of operation: Frequency (VFO) mode, and Channel or Memory (MR) mode.
For everyday use, Channel (MR) mode is going to be a whole lot more practical than Frequency (VFO) mode. However,
Frequency (VFO) mode is very handy for experimentation out in the field. Frequency (VFO) mode is also used for
programming channels into memory.
In Channel (MR) mode you can navigate up and down the channel by using the ▲ and ▼ keys.
Ultimately which mode you end up using will depend entirely on your use case.
5.5 Frequency (VFO) mode
In Frequency (VFO) mode you can navigate up and down the band by using the ▲ and ▼ keys. Each press will increment or
decrement your frequency according to the frequency step you've set your transceiver to.
You can also input frequencies directly on your numeric keypad with kilohertz accuracy.
The following example assumes the use of a 12.5 kHz frequency step.
Example. Entering the frequency 432.6125 MHz on display A
a. Use the [VFO/MR] key to switch to Frequency (VFO) mode.
b. Press [A/B] until the
icon appears next to the upper display.
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