Alc Setting; Temp; Int. Vox; Ssb Delay - RM Italy BLA 350 User Manual

Power/ON OFF
Standby/ON OFF
LPF Any Position
AUTO/MANUAL AUTO
17.3 Standby
Switch the POWER switch to ON (
will illuminate([) , the analogue panel meter will illuminate (b).
In this mode the amplifier is in Standby and will not go into
transmit if the PTT is operated.
The LCD display shows:
The first row indicates the state of the amplifier (Standby) and
the status of the filter selection, either automatic or manual
(Auto or Manual). The second row shows the temperature of the
heat sink close to the main MOSFET transistors and the
selected filter band. (B:10-12m) If the switch AUT/MAN is set to
MAN then it is possible to change the filter selection manually
with (`)
17.3.1 MENU
When the amplifier is in Standby mode, it is possible to access
the the settings menu. Press the button OK on the keypad (]).
In this mode it is possible to change many of the amplifiers
parameters to suit the operators requirements.
After entering the settings menu, it is possible to access all of
the sub menus by repeatedly pressing OK. To enter a sub menu
and change data press the SET (^) key. To exit a sub menu
without changing any data press the Stby/ON key (\) to ON
(Operate), or cycle through the settings menu until Esc and
press SET. To save any modifications to a particular parameter
press OK immediately after a modification is made. An asterisk
is displayed to indicate the selected parameter, where it is
possible to make a modification.

17.3.1.1ALC Setting

This menu allows adjustment of the ALC voltage for the correct
regulation of the ALC level.
To begin set the trimmer on the rear panel (] par. 5), using a
small screwdriver, to half travel. Correct adjustment of the ALC
level maximises the performance of the amplifier and reduces
the possibility of damage in case of operator error.

17.3.1.1.1 Adjust ALC

Entering the ALC menu activates the ALC circuit
without the amplifier in transmission. Use your
transceiver in CW or FM mode at maximum output
power, the input power to the amplifier can be seen
on the LCD display , transmit and at the same time
adjust with the ALC trimmer on the rear panel until the
display reads 12W, then press OK. Now every time
the amplifier is set in OPERATE mode the ALC circuit
will automatically limit the output power of the
transceiver.

17.3.1.2 Temp

par.4), The LCD display
a
This menu allows the unit of temperature to be
changed on the display.

17.3.1.2.1 Celsius

Selection of temperature in European units.

17.3.1.2.2 Fahrenheit

Selection of the temperature in US units.

17.3.1.3 Int. VOX

In this menu it is possible to activate the amplifiers internal VOX
circuit. It is preferable to use the PTT input to keep the
switching time as short as possible, however if there is no PTT
function available from the radio the internal VOX maybe used.
17.3.1.3.1 Disabled
VOX Disabled
17.3.1.3.2 Enabled
VOX Enabled

17.3.1.4 SSB Delay

In this menu it is possible to change the delay time
from TX to RX when using the VOX circuit for PTT
function.

17.3.1.4.1 Delay Set

Cycle through the choices 0-100-250-500-750 and
1000ms with the SET (^) key and select with OK (]).

17.3.1.5 Fan Speed

The cooling fan operates in conjunction with the
temperature of the heatsink. It is possible to change
this relationship and hence the operating noise of the
fan when in use.

17.3.1.5.1 Quiet mode

In this mode (ON) the fan operates when the
temperature reaches 40°C. If not active, (OFF),
default setting, the fan will run at switch on at a low
speed and increase in speed when the temperature
reaches 55°C.

17.3.1.5.2 Max speed

pressing OK the fans will run at maximum speed for 5
seconds, this helps to clean any accumulated dust
from the heat sink. It is suggested this function is
carried out periodically to help stop the accumulation
of dust.

17.3.1.5.3 Man setting

It is possible to adjust the speed of the fan when the
temperature reaches 55°C. There are 9 levels,
between 20 and 80% of the maximum speed. The
default setting is 5.
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