Palstar LA-1K Palstar LA-1K RF Sensing Dual HF LDMOS is a 1000W amplifier is a complete stand-alone amateur radio amplifier. User Manual 2

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Document ID	3659532
Application ID	yWPPwZ3u/YaWKEqy4pVn4w==
Document Description	Users Manual 2
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Permanent Confidential	No
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Document Type	User Manual
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Date Submitted	2017-11-30 00:00:00
Date Available	2017-12-01 00:00:00
Creation Date	2017-11-10 14:39:53
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Document Title	Users Manual 2
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PALSTAR
Palstar products are designed by
Hams for Hams carrying on the
Palstar tradition for high-quality
products designed and
manufactured in Ohio, USA.
LA-1K RF SENSING 1000W
DUAL HF LDMOS AMPLIFIER
LA-1K RF SENSING 1000W
DUAL HF LDMOS AMPLIFIER
Technical Manual
 1000 watts PEP CW ICAS (160 m to 6m)
 RF Sensing Auto Band Switcing
 Color touch screen
 Variable speed fans
 12.75” x 6.25” x 16.5”
9676 N. Looney Rd,
Piqua, OH 45356 USA
(937) 773-6255
(800) 773-7931
(937) 773-8003 (Fax)
www.palstar.com
PALSTAR
Designed and Manufactured in the USA
Copyright 2017 Palstar, Inc.
LA-1K SPECIFICATIONS
 OUPUT POWER:
1000 Watts PEP C W IC AS
 CW MODE:
O p e r a t e s c l o s e t o 5 0 % o f a v e r a g e p o w e r. I t
LA-1K BLOCK DIAGRAM
is suggested that with power levels
up to 850W transmissions may be 5 minutes
o n , 1 m i n u t e o ff .
 F M / R T T Y:
275 watts approx.
 FREQUENCY RANGE: 1.8 TO 54 MH z
 DISPLAY:
Color touch screen
 O U T P U T:
3 RF SO-239 connectors
 A LC :
Exciter power control
 GAIN:
13+/-1dB (NOMINAL)
 RF SENSING:
Auto band switching
 R F O U T P U T:
V a c u u m R E L AY R / T S w i t c h i n g
 P O W E R S U P P LY:
Internal Medical grade
 D C S U P P LY:
1 0 0 VA C - 2 6 0 A C 5 0 V @ 4 2 A
 POWER DEVICES:
2 x 5600H 600W (LDMOS)
 INTERMOD:
Low IMD Distortion >-35dB
 PURE SIGNAL:
Sample@+10dBm (Rear Panel)
 COOLING:
Va r i a b l e S p e e d Fa n s ( 3 s p e e d )
 CHASSIS:
.090 ga. aluminium
 TOP COVER:
.090 ga. aluminium, powder coated
 DIMENSIONS:
12.75” W x 6.25“ H x 16.5” D
 W E I G H T:
27 LBS, 12.25 Kg
 D E S I G N CO N C E P T:
Fu l l co m p at i b i l i t y w i t h Pa l s t a r
HF-AUTO autotuner
 WA R R A N T Y :
Two ye a r
Page 1
Page 14
PALSTAR
EXTERNAL DATA CONNECTORS
THEORY OF OPERATION
The LA-1K automatically selects bands and it is normally not necessary
to connect band data cables between your transceiver and the LA-1K
amplifier.
The LA-1K RF Sensing Dual HF LDMOS amplifier is a complete
stand-alone amateur radio amplifier.
RADIO INTERFACE CONNECTOR:
This connector is designed to be
pin for pin compatible with other
amplifiers. The required cables are
widely available. They can be used
to connect to ICOM and YAESU
transceivers.
XCVR Interface
[Radio Interface Pin Out]
Pin
Function
BCD B IN
BCD A IN
Kenwood RX (data in) [Null modem required]
Kenwood TX (data out)
Icom Band Data
GND
Amp-Key IN
BCD D IN
BCD C IN
It is completely independent of data from an external source to
determine frequency for tracking from Band to Band. As a result of this
feature, the LA-1K will function with any transmitting device without
interconnecting data cable attachments.
The power output of the LA-1K is 1000 Watts PEP CW ICAS (Intermittent
Commercial and Amateur Service). Under the ICAS classification, the
use of the LA-1K is designed for transmissions that are of an
intermittent nature.
Intermittent operation of the LA-1K implies that no operating or
“ON” period of 1000W of Continuous Carrier Power will exceed
1(ONE) minute.
On Single Side Band (SSB) voice duty there is no limit on transmit time
at full power of 1000W PEP.
Every “on” period must be followed by an “off” or standby period of at
least the same or longer duration.
The LA-1K provides a +10dBm@1kW RF tap feed at the rear panel to
provide provisions for “pure signal” operation provided by compatible
transceivers. The level adjustment is calibrated at the factory.
The LA-1K was designed to be fully compatible with the Palstar
HF-AUTO automatic antenna tuner.
RS232 BAND CONTROL CONNECTOR:
This connector is designed to be used with Kenwood transceivers for
band selection using a null modem adapter. It is also designed to
control the amplifier from a computer.
Page 13
Page 2
PALSTAR
SCREEN DISPLAY ON POWER-UP
ON INITIAL POWER-UP
D i s p l a y w i l l i n d i c a t e S T B Y m o d e ( s t a n d - b y ) . To s w i t c h
mode press the “MODE” button on the tourchscreen
display to switch into “OPR” mode (operational).
S TA N D - B Y M O D E
HOW-TO UPDATE FIRMWARE
D O W N L O A D I N G L A - 1 K F I R M WA R E
 CREATE a folder on your computer’s hard drive
 NAME the folder LA_1KFIRMWARE
 DOWNLOAD the Firmware file (Zip format) 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 file is named “LA-1K Firmware x.x”
 SAVE the file to the folder you created in Step 1
 OPEN the folder by right-clicking on the Zip file and select “Extract All” follow the steps in the Extraction wizard
 CONNECT one end of the USB cable to a USB port on your computer.
 DOUBLE-CLICK “LOAD_LA-1K” within your LA_1KFIRMWARE folder that you
created in Step 2.
O P E R AT I O N A L M O D E T R A N S M I T T I N G
 Follow the instructions on the opened computer window and use the
"Browse" button to select the firmware version to be loaded.
 Depress and hold down 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 a USB cable to the LA-1K front
panel.
NOTE: Wattmeter only shows RED power bar graphical
indicator when the LA-1K is transmitting.
 TURN-ON the LA-1K. A "Found 1 device" message will appear on the right
side of the opened computer window.
 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 filling from left to right. The
firmware version number on the LA-1K is on the bottom line of the start up
screen.
Page 3
Page 12
PALSTAR
LA-1K FIRMWARE SUMMARY
1.00H: As shipped from factory.
OPERATIONAL MODE
O P E R AT I O N A L M O D E
To s w i t c h i n t o O p e r a t i o n a l m o d e “ O P R ” p r e s s t h e “ M O D E ”
b u t to n o n t h e to u c h s c re e n d i s p l ay. Th e to u c h s c re e n
menu will display “OPR” mode (operational). The red
power bar graphical indicator will only be visible when
transmitting.
O P E R AT I O N A L M O D E
Page 11
Page 4
PALSTAR
INTERIOR PHOTO
OPERATIONAL MODE
BAND SELECT
To s w i t c h b a n d s , 1 6 0 M - 8 0 M - 4 0 - 3 0 M - 2 0 - 1 5 M - 1 2 - 1 0 M - 6 M ,
p re s s t h e “ B A N D ” b u t to n o n t h e to u c h s c re e n d i s p l ay,
then select desired band. The LA-1K selects the proper
band automatically when transmit is activated.
Rear Panel
RF Deck
Front Panel
ANTENNA SELECT
To s w i t c h a n t e n n a s b e t w e e n A N T 1 ( C o a x 1 ) , A N T 2 ( C o a x
2 ) , a n d A N T 3 ( C o a x 3 ) , p r e s s t h e “A N T ” b u t t o n o n t h e
to u c h s c re e n d i s p l ay, t h e n s e l e c t d e s i re d a n te n n a o u p u t .
This setting will automatically select when changing
bands to the last one used on any particular band. The
default value is ANT 1.
AC input filter
Page 5
+/-12V (BIAS)
Dual output
filters
Page 10
+50V@42A
Power Supply
PALSTAR
OTHER MENU OPTIONS
OTHER MENU OPTIONS
S E L E C T A L C B A S E VA L U E
To a d j u s t A L C b a s e v a l u e s e l e c t m e n u o n t h e t o u c h s c r e e n
d i s p l ay.
SELEC T BACKLIGHT
To a d j u s t t h e b a c k l i g h t o n t h e t o u c h s c r e e n d i s p l a y p r e s s
MENU.
Press and hold the < or > arrows to increase or decrease
A L C B A S E VA L U E . I f u s i n g A L C t h i s s h o u l d b e a d j u s t e d
c a r e f u l l y t o m a t c h y o u r t r a n s c e i v e r ’s r e q u i r e m e n t s
(usually -1.5V approximately).
Press and hold the < or > arrows to adjust BACKLIGHT
LO W ( s c re e n i n te n s i t y w h e n n o b u t to n s a re p re s s e d ) a n d
select NEXT and then < or > arrows to adjust BACKLIGHT
HIGH (screen intensity when buttons are being pressed).
S E L E C T B AC K L I G H T LOW / H I G H
A L C B A S E VA L U E
Page 9
Page 6
PALSTAR
LA-1K Front & Rear Panel
Page 7
Page 8
PALSTAR

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