Button 4: Step Function; Button 5 : Ch 9/19 And Lock Switching - Albrecht AE2990 AFS Bedienungsanleitung

In SSB (Single Side Band) you will have the Upper Side Band USB and the Lower Side
Band LSB. SSB is the mode for the longest possible communication distances. All
commercial short waves services use this long range mode. However, it is necessary to
make a fine adjustment of the clarifier knob for best voice reproduction, and most listeners
need a certain training period until they can understand SSB communication clearly. But the
result is the largest possible communication range among all other modes!
Selectable Hi/Low Power: The unit has been designed with proprietary circuitry that gives
superior transmitting performance and gives the user the ability, depending on the usage
application they are in, to select between two power levels. Low power output mode will give
the user significantly longer battery life estimated twice as long as when in the full power
mode. It is recommended that when you only need a range of 1/2 mile or less, the "low"
position would provide more than adequate output power. If you need distances greater than
that, leave the radio in the "Full" power mode.
To Change the Power Output Level:
• Press and release the "Func" button.
• Then press and release the "MODE/H/L" button.
The word "Low" will appear on the display. The power out level is now 1 watt on the AM/FM
mode. This is recommended when communicating in short range, such as around 1/2 mile or
less.
• to return to full power, simply press the "Func" button again, followed by the
"MODE/H/L" button.
This will return the radio to the full power position, which is 4 watts in FM and 1 Watt / 4 Watt
in AM and 4 Watts PEP in SSB depending on country setting.

Button 4: Step Function

This button is used for select one of the frequency step (1 KHz, 10 KHz and 100 KHz) and is
only in operation if the unit is switched to Ham Radio mode.
"+"and"-" Shift Function: This function allows the user to activate the shift offset frequency
and transmit higher or lower than displayed or receive frequency. To activate, press the
"FUNC" button first, followed immediately by the "STEP/CH.FR" button. The sign "+" will
appear on the display, now the unit will transmit higher than receive frequency. To transmit
lower than receive frequency, repeat the same procedure until the"-" sign appear on the
display. To deactivate these operations repeat same procedure until "+" and "-" icons
disappear. This function activate when the unit is in mode 1 (ham band) operation only,
where it is used for Repeater operation.
.
Frequency display: This button allows the user to show up the channel frequency of the
selected channel on the LCD display. To activate just press "FUNC" button first and then
followed immediately by "STEP/CH.FR"

Button 5 : CH 9/19 and LOCK switching

The special channels 9 and 19 are used by CB community for emergency and calling
channels (different from country to country). To activate this special frequency just press
"CH9/19/LOCK" button, then the operating frequency automatically will jump to this
frequency. Each time you press this button the blinking display change to 9 and 19 then back
to previously selected frequency. This button can also be used for selecting band segment
switching (not for legal use in EU states) when the unit is in Full Band mode of operation.
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