Channel Memory Write (MW) and Clear (MC)
Basic opera�ons:
1. While in VFO mode, set the required frequency, mode, and any other
parameters you desire.
2.
Press the [MW/MC] bu�on momentarily and the CH 00 (channel number)
character will appear on the screen flashing. Rotate the main tuning knob to
select an empty channel. At this �me, the character E will appear a�er the
channel number, indica�ng that the channel is empty and can be used for
storage.
3. Press the [MW/MC] bu�on again momentarily to save the current
frequency and mode informa�on to the selected channel.
The audio output level from the computer to the radio should be adjusted
so that the ALC value displayed on the screen is between 30 and 85. The
lower the ALC value, the be�er. You should set the radio at your required
output level and then adjust the PC’s sound card output so that the radio’s
ALC is within range. Excessively high input signal level will overload the input
amplifier, resul�ng in modula�on signal distor�on. With the ALC set
correctly, the TX output reading may jump around rapidly under digital
modes - but average power levels will be in the correct range for a clean and
effec�ve signal. Digital modes are highly efficient and require much less TX
power than other modes to make a contact.
For digital data communica�ons, the PC output level is adjusted together
with the "Line input volume" (your TX audio) in the radio. The level of the
audio input to the computer is adjusted in conjunc�on with the radio’s "Line
output volume" (received audio going to the PC). The PC se�ngs are
normally found under “Sound devices”. It is best to set the radio to a
mid-level value and then adjust the PC’s levels to achieve correct opera�on.
Fine tuning from that point can be done through the G90/S’s menu se�ngs.
In the system menu, the following two se�ngs are the ones to adjust for data
communica�ons:
5
AUXIN Volum
Line input volume se�ng
6
AUXOUT Volum
Line output volume se�ng
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