Page 9
ALC ADJUSTMENT PROCEDURE
NOTE: Ampli er ALC is only used for SSB voice transmission.
•
Connect the ALC cable from transceiver to the LA-1K ampli er
•
Set the ALC BASE VALUE to minimum on the LA-1K as described on
the previous page
•
Place the transceiver in CW or RTTY (NOT AM or FM)
•
With the LA-1K in standby mode set the transceiver to an initial
power level of about 30 Watts then unkey the transmitter
•
Switch the LA-1K to OPERATE MODE (OPR) by pressing MODE
•
Transmit and adjust transmitter output to achieve the desired output
power level. Do not exceed 1000 Watts output or 60 Watts drive
power (to avoid splatter).
UNKEY TRANSMITTER
•
Switch transceiver to LSB or USB transmission. Press MENU on the
LA-1K and NEXT until the SELECT ALC BASE VALUE screen is visible.
Transmit speaking in the microphone and adjust the LA-1K ALC base
value increasing the ALC voltage until the power output starts to
drop. The point where power drops slightly is the correct setting.
Push EXIT to return to the main screen on the LA-1K
NOTE:
More precise adjustments may be made by connecting an
oscilloscope to observe the output for clipping.
PALSTAR
Page 14
HOW TO UPDATE FIRMWARE
DOWNLOADING and INSTALLING LA-1K FIRMWARE
•
DOWNLOAD the latest Firmware le (a ZIP archive) from the Palstar
website
:
http://www.palstar.com/en/la-1k/
. The download link is near
the bottom of the page. The link to the le is named “LATEST FIRMWARE
LINK: LA-1K FIRMWARE x.x.ZIP” where x.x is the latest revision number.
•
SAVE
the ZIP le to a location on your computer
•
OPEN
the folder by right-clicking on the ZIP le and select “Extract All” -
follow the steps in the Extraction Wizard. After extracting, a FOLDER will
be created called “la-1k_ rmware_XX” where XX is the revision number.
•
CONNECT
one end of the USB cable to a USB port on your computer.
•
DOUBLE-CLICK
“LOAD_LA-1K.exe” within the folder containing the
rmware download.
•
Follow the instructions on the opened computer window and use the
“Browse” button to select the rmware version to be loaded.
•
Press and
HOLD
the GREY button to the right of the USB port labeled
“
PROGRAM UPDATES
” during the next two steps.
•
CONNECT
the other end of the USB cable to the LA-1K front panel. A
“Found 1 Device” message will appear on the right side of the opened
computer window.
•
TURN ON
the LA-1K.
•
RELEASE
the GREY button on the LA-1K front panel.
•
CLICK
on the “Update Firmware” button that is on the opened computer
window. Wait until the green bar in the middle of the computer window
shows that the programming completes by scrolling from left to right.
The rmware version number on the LA-1K is on the bottom line of the
start up screen.
