User's Manual

14
6888882V04
Mode and Function Indications
The following indications may appear in the work area of the LCD display.
Indication
Meaning
USB
Using upper sideband for transmission and reception
LSB
Using lower sideband for transmission and reception
ISB-U
Independent sideband (ISB) mode (option) is enabled, and the main sideband is USB
ISB-L
Independent sideband (ISB) mode (option) is enabled, and the main sideband is LSB
SQ
Squelch is active: the speaker is turned on only when the radio identifies speech, to
prevent reception noise from being heard. For Micom-3R, the squelch function also
effects the handset
MON
When using ALE, indicates that the speaker is normally off, and is automatically turned
on when the link is established. For Micom-3R, the monitor function also effect the
handset
AGC
Non-standard AGC mode (AGC off, or fast AGC) has been selected
BW
Non-standard bandwidth has been selected that is, any bandwidth except 2.7 kHz (the
bandwidth appears next to the BW indicator, for example, 3.3 (3.3 kHz) in the screen
shown above)
NB
Noise blanker is active
CLAR
Clarifier is active (you selected a frequency deviating from the nominal channel
frequency)
NF
Notch filter is active
RF Level Indications
Indication
Meaning
Strong received signal
Weak received signal
Received RF signal strength indication, displayed when the radio is
in the receive mode. The height provides a relative indication, which
may fluctuate as a result of fading, etc.
– Full transmit power
– Relative transmit power
– Low transmit power
– Reflected power
Transmit bar, appears when the radio is switched to the transmit
mode (for example, when the PTT is pressed). Its length indicates
the maximum radio transmit power in the selected mode (MAX,
HIGH, MED or LO). The triangle height indicates the instantaneous
relative transmit output power, and therefore it fluctuates as a
result of modulation.
The relative reflected power is indicated by the base line: its length
indicates the fraction of power reflected because of antenna VSWR
(the length should be small relative to the total height of the
transmit bar, which is proportional to the forward power)