MICOM-3F/3T/3R HF-SSB Owner’s Guide
18
Filter Bandwidth
The filter bandwidth depends on the type of signal to be transmitted and received. A default filter
bandwidth can be configured for each channel (if no particular filter is set for the current channel, the
radio retains the previously used filter). When a new type of call is received or sent, the bandwidth
filter changes automatically, depending on the PTT source (voice, data or CW), and the programmed
bandwidth for the channel being used.
Bandwidth set to: Service type:
Filter changes after:
2.1 K
Data
First data PTT
2.7 K
Voice
First microphone or voice PTT
3.0 K
Data
First data PTT
3.3 K
High speed data, vocoder,
or voice privacy device
First data PTT
CW
Morse
First CW PTT
LSM
Low speed data
First data PTT
Note
When the filter bandwidth is set to CW, the following CW bandwidths can be
configured in the Programming mode: 0.25 K, 0.5 K or 0.8 K.
Using the Channel Mode
The Channel mode is used for choosing channels already programmed in the MICOM-3.
The following sections describe how to use the Channel mode.
Selecting the Channel Mode
In general, the MICOM-3 automatically enters the Channel mode when turned on, and starts using
the last used channel.
If not, use the Menu screen to select the Channel mode: this is the first item on the menu you see
when you press
MENU
.
➤
To enter the Channel mode:
1. Press
MENU
to display the Menu screen.
MICOM-3
CHAN
FREQ
ALE
BIT
MENU
I
2. Press
CHAN
(F1).
The last active channel flashes in the display.
MICOM-3
CH 1
3. Press
ENTER
to confirm your choice, or select another
channel as explained in the Choosing a New Channel
section
starting on page 21.
