JUMA PA1000 User manual

JUMA PA1000 User Manual Version 1.44 update 2018-10-12 Page 1 of 15
JUMA PA1000
Linear Amplifier
User Manual

JUMA PA1000 User Manual Version 1.44 update 2018-10-12 Page 2 of 15
Congratulations!
We are happy that you ha e selected the JUMA PA1000 linear amplifier.
You will find it easy to use. Enjoy using your JUMA PA1000.
Safety warnings!
Dangerous oltage inside JUMA PA1000.
Do not open the enclosure.
Check that your mains AC oltage is the same as marked on the rear panel. If you ha e ordered a switchable
115/230VAC option check that you ha e selected the correct mains oltage with the selector on the bottom of case.
Use a AC mains socket with a protecti e earth.
If a mains protecti e earth is not a ailable connect your station ground to the rear panel ground terminal.
If you need to change the mains fuses switch OFF the power with the rear panel rocker switch and remo e the mains
cable from the power entry module and wait at least 5 minutes before fuse change.
Cautions!
Set input power to 10W! NEVER drive more t an 25 watts RF to t e TRX input connector.
Some transcei ers may transmit up to 100 W for a short time although you ha e selected 10 W output. To a oid
MOSFET failure keep the EXCITER MAX PWR setting at 100W until you are SURE that your transcei er is not
momentarily transmitting more than selected. This will limit the max gain setting (Gx). See settings instructions.
Please understand that any antenna tuner which is specified for 1kW or more CAN NOT stand 1kW power with an
unknown SWR. If the SWR is high enough the RF current or the RF oltage can exceed the limits of the tuner
components. This may end up to a break or arcing in the tuner which may cause a dangerous flyback energy to the
amplifier. Please check the power/SWR limitations of your tuner. If the SWR limitations are not specified for your
tuner do not use such a tuner. Typically high power tuners are limited to match antennas with SWR 1:3 or better. This
means that you must know your antenna SWR without a tuner. A reasonable matc ed resonance antenna is ig ly
recommend instead of using an antenna tuner!
Any antenna tuner, roller or relay based tuners, especially auto tuners, should be preadjusted at the lowest
practicable RF power to a oid a dangerous flyback oltage to the amplifier. Warranty is oid if you break your JUMA
PA1000 amplifier by tuning an antenna tuner when JUMA PA1000 amplifier in OPER state. This applies to all tuners.
TUNE WITH EXCITER LOW POWER AND DISABLE AUTO TUNE FOR JUMA PA1000 USE!
JUMA PA1000 can stand any antenna SWR and will safely go to the SWR protection if there is not breaking parts
between the amplifier and the antenna. WE RECOMMEND NOT TO USE AN ANTENNA TUNER but adjust your antenna
to a reasonable SWR.
Precautions!
JUMA PA1000 has been designed for SSB and CW operation. It is not designed for 100 % duty cycle key-down
operation which is likely to happen in FM, AM, RTTY and digital modes. PA1000 will go to temperature protection
during long key-down periods. A oid long key-down periods by following the temperature indication. Select Low PA
oltage for for reduced power below 700 W.
Manual band selection is NOT recommended because you may end up to a low output power with wrong band
selection and then accidentally o erdri e the amplifier. A band data cable for your transceiver and AUTO BAND
selection is ig ly recommended.
If the antenna is not properly matched you may not get full power output. SWR better than 1:1.5 is recommended. If
the SWR is approaching 1:2 you may need to lower the amplifier gain or reduce dri e le el.
Copyrig t
JUMA PA1000 is designed in Finland by OH2NLT and OH7SV
JUMA® is a registered trademark of Juha Niinikoski and Matti Hohtola.
All rights reser ed. Copyright jumaradio.com

JUMA PA1000 User Manual Version 1.44 update 2018-10-12 Page 3 of 15
JUMA PA1000 overview
JUMA PA1000 is a ery light weight solid state 1 kW
linear amplifier for HF and 6 meter bands. JUMA
PA1000 is using a most modern LDMOS transistor in
the RF amplifier. The RF matching is based on no el
design which pro ides ery good efficiency. The power
supply is also latest technology, a light weight
resonance power supply. JUMA PA1000 accepts band
data from popular transcei ers. It supports parallel
BCD, serial band data and analog band oltage. The
band can also be selected manually.
JUMA PA1000 is fully protected against excessi e SWR,
o er current and o er temperature. It withstands
wrong antennas, accidental open or short circuit in the
RF output. The SWR protection is based on re erse RF
power coming back from antenna. Thus if your antenna
SWR is too high you can continue working by lowering
the power.
Simple user interface
JUMA PA1000 is easy to use. There are only the
necessary push buttons in the front panel. The LCD
indicates the essential information, the LED bar shows
the output power and re erse power. OPER, AUTO
band and protection are indicated by their own LEDs.
Rear panel has mains connector, TRX connector, ANT
connector, PTT input and band data input. Firmware
update is easy with a built in boot loader and with a PC.
Features
•Nominal output power 1000 W PEP
•All HF bands including WARC bands and 50 MHz
•Input power: Adjustable gain for 5 W...25 W dri e
•Input SWR better than 1 : 1.3 on all bands
•Mains 230VAC or selectable 115/230VAC on request
•LCD display for band, gain, SWR, oltage, current and
temperature
•LED bar display for forward and re erse RF power
•SWR, o er current and o er temperature protection
•Temperature controlled user adjustable proportional
fan speed
•Auto band or manual band selection
•Band data formats: BCD, RS232, C-IV and oltage
•Con erts serial, oltage or manual band data input
to BCD band data output. Con enient feature for
antenna switching etc applications.
•Remote support with the Windows application. See
more here www.jumaradio.com/juma-pa1000
•Small size: W x H x D 261 x 135 x 300 mm
•Very light weight: 5.5 kg

JUMA PA1000 User Manual Version 1.44 update 2018-10-12 Page 4 of 15
JUMA PA1000 front panel
JUMA PA1000 rear panel
Protection
indicators
Re erse power
LED bar
Forward power
LED bar
Multi function
display
Band selection
push buttons
Operate/Standby
push button
Display page selection
and adjustments
TRCVR RF
connector
BCD
Band data
in/out
,
PTT input,
COM2 for Remote use
AC
Power
entry module
Ground
terminal
Antenna
connector
PTT input
COM1
:
RS232 and CI-V
Serial Band data
TX ON LED

JUMA PA1000 User Manual Version 1.44 update 2018-10-12 Page 5 of 15
Display page selection and adjustments
PAGE button selects display page one after another.
ADJUST buttons change the setting on the selected
page.
Main Page
In the Main Page the ADJUST buttons are changing the
gain of the amplifier by means of the adjustable input
attenuator. The gain can be set from G1 to G8 with a
step of 1dB. Always start with G1 which is the lowest
gain by monitoring the LED bar power indicator. The
gain setting is indi idual for each band. PA1000 will
remember the gain settings. Note. EXCITER MAX PWR
setting may limit the max gain setting.
Note. The temperature reading is indicating the
MOSFET case temperature. The temperature rise of the
heatsink is about half of that temperature rise. Max
MOSFET case temperature is 105°C.
Ot er display pages
Push the PAGE button one after another for the other
display pages and use the ADJUST buttons to change
the setting.
LCD brightness adjustment
LCD contrast adjustment
Band data selection. Options: BCD data, JUMA Serial,
Icom CI-V, Kenwood Serial, Elecraft Serial, Yaesu
Voltage, Icom Voltage.
COM1 baud rate adjustment (Serial Band Data)
COM2 baud rate adjustment (Serial Remote data)
Fan control adjustment. The fan will run with maximum
RPM at the selected MOSFET case temperature. In
hea y use you can lower this setting for proacti e
cooling. In light use you can increase this setting.
Defines the max power le el of your transcei er.
Options are: 5W, 10W, 25W, 50W, 100W. This setting
protects the MOSFET gates by limiting the max gain
setting (G1…G8). Reduce this setting only if you are
SURE that your transcei er is not momentarily
transmitting more than selected.
The purpose of this PA oltage selection is to optimize
the efficiency. The options are High and Low. Select
Low PA oltage for for reduced power operation below
700W. Note. The oltage indication may fluctuate
during standby which is normal.

JUMA PA1000 User Manual Version 1.44 update 2018-10-12 Page 6 of 15
LED Bar Power Indicator
The LED bar RF power indicator gi es a real time iew of forward and re erse power. It is indicating the peak power.
The LED bar hold time and the decay speed can be adjusted in the ser ice page if desired.
Protection indicators
The protection is implemented in the hardware and
therefore it is independent of the software latency and
operation. When a protections situation is detected
JUMA PA1000 will go to stand-by state.
SWR PROTECTION LED will be lit if the re erse power
limit is exceeded. In this case check antenna, reduce
PA1000 gain or reduce exciter dri e.
OVER CURRENT LED will trip if the MOSFET current 30A
is exceeded. In this case reduce the gain (Gx) or reduce
the dri e. You can monitor the current in the LCD.
Nominal current for full power is approximately 24A.
The nominal bias current without dri e is 2A ±0.2A.
OVER TEMPERATURE LED will be lit if the MOSFET case
temperature 105°C is exceeded. In this case reduce
power. O er temperature led will go off when the
temperature has fallen below the threshold le el.
Howe er amplifier will stay in STBY state until you clear
it by pushing OPER button.
After you ha e checked the protection situation clear it
by pushing the OPER button.
Band selection buttons
Push AUTO button for automatic band selection. Green
LED will be ON and the main display is showing the
band. If a alid band data is not a ailable the main
display is showing “?? MHz” and PA1000 will not
operate. In this case check band data cable, band data
setting and the baud rate setting of the COM1.
Manual band selection is made by first pushing the
BAND button which after you can select the band by
pushing and buttons.
In manual band selection there is a special “AllMHz”
band which indicates that the final low-pass filters are
bypassed. Do not transmit with “AllMHz” selection
without external low-pass filter because the harmonics
are not filtered.
JUMA PA1000 sa es the band selection mode for the
next power-up.
Note. Manual band selection is not recommended
because you may select wrong band before or later.
Then you may accidentally o erdri e and it may end up
to a MOSFET failure!
OPER / STBY button
Simply push OPER/STBY button to switch between operate and standby state. LED is ON in operate-state. In start-up
the default state is STBY. This can be modified in the ser ice pages so that PA1000 will memorize OPER/STBY state for
the next start-up.

JUMA PA1000 User Manual Version 1.44 update 2018-10-12 Page 7 of 15
Quick Guide for t e first time use
Wit Auto Band. RECOMMENDED!
1. Connect antenna with coaxial cable.
2. Connect transcei er with coaxial cable.
3. Connect PTT and band data cable from transcei er.
You may need one or two cables depending on
your transcei er. See the cable instructions. In the
case of JUMA TRX2 PTT cable is not needed.
4. Adjust transcei er RF power output le el to 10W.
5. Connect AC mains cable and switch on JUMA
PA1000 by the rear panel switch.
6. After start-up go to the Band Data page by pushing
PAGE button se eral times. Use ADJUST buttons to
select a compatible band data format. In case of a
serial band data check also the COM1 baud rate
that it matches with your transcei er setting.
7. Push PAGE button se eral times until you are back
in the Main Page (Band display left up).
8. Push AUTO BAND button. LED indicates auto band
and you should see the band in the main display
page. Check that PA1000 is tracking the transcei er
band.
9. Push OPER button. LED indicates operate state.
10. Transmit SSB or CW with your transcei er and
watch the output power LED bar.
11. Adjust PA1000 gain with ADJUST buttons in the
main page (G1, G2, G3…) for desired power le el on
each band. Note. The max gain setting may be
limited by MAX EXCITER PWR setting.
Next time use
Simply switch on PA1000 and push OPER button.
JUMA PA1000 will memorize all other settings.
Quick Guide for t e first time use
Wit Manual Band. NOT RECOMMENDED!
1. Connect antenna with coaxial cable
2. Connect transcei er with coaxial cable
3. Connect PTT cable from transcei er. See cable
instructions. In the case of JUMA TRX2 PTT cable is
not needed.
4. Adjust transcei er RF power output le el to 10W.
5. Connect AC mains cable and switch on JUMA
PA1000 by the rear panel switch
6. Select manually correct band with BAND
buttons. Main display shows the band.
7. Push OPER button (LED indicates operate state)
8. Transmit SSB or CW with your transcei er and
watch the output power LED bar.
9. Adjust PA1000 gain with ADJUST buttons in the
main page (G1, G2, G3…) for desired power le el on
each band. Note. The max gain setting may be
limited by MAX EXCITER PWR setting.
Next time use
Switch on PA1000, check the band and push OPER
button. JUMA PA1000 will memorize all other
settings.
Note. Manual band selection is not recommended
because you may select wrong band before or
later. Then you may end up to accidentally increase
the dri e and it may end up to a MOSFET failure!
Warnings!
•Set t e output power to 10W-15W on ALL modes and on ALL bands in your transceiver.
•Antenna tuner is not recommended. But if you are using an antenna tuner, tune it wit
exciter low power and disable auto tune for ig power.
•Adjust gain (Gx) wit SSB or CW mode to a desired output power. Do not use AM, FM or
similar modes because t ey may provide ig power transients to PA1000.

JUMA PA1000 User Manual Version 1.44 update 2018-10-12 Page 8 of 15
Rear Panel Connectors
BAND DATA / COM2 Connector
12345
6789
D9 female socket
BAND DATA / COM2 Connector Description
Pin # Description
1 BCD A (Band data) *
2 COM2 RS232 OUT (Serial com output) **
3 COM2 RS232 IN (Serial com input)**
4 BCD D (Band data) *
5 GND (Signal ground)
6 BCD B (Band data) *
7 PTT IN (Parallel with PTT jack connector tip)
8 BCD C (Band data) *
9 BAND VOLTAGE (Input)
*Band data signals are pulled up to +5V with 100k resistors.
**COM2 is used for firmware updates and remote connection
BCD Band Data Table
Band Freq BCD D BCD C BCD B BCD A
160 m 1.8 MHz 0 0 0 1
80 m 3.5 MHz 0 0 1 0
40 m 7.0 MHz 0 0 1 1
30 m 10 MHz 0 1 0 0
20 m 14 MHz 0 1 0 1
17 m 18 MHz 0 1 1 0
15 m 21 MHz 0 1 1 1
12 m 24 MHz 1 0 0 0
10 m 28 MHz 1 0 0 1
6 m 50 MHz 1 0 1 0
All band “AllMHz” 0 0 0 0
BCD code 0000 as an input bypasses the low-pass filters
and the display indicates “AllMHz”.
All other input codes (1011 ... 1111) are not alid and
they are indicated as “?? MHz”. In that case PA1000
will not transmit.
Tip. JUMA PA1000 con erts serial, oltage or manual
band data to BCD output on the four BCD lines in D9
connector. This BCD output can be used to control
antennas or other equipment. The output is 0V/+5V
with an output impedance of 1kΩ. Thus the BCD output
signals must be buffered e.g. with a BCD to Decimal
decoder IC. If a band data is not a ailable PA1000 will
output BCD code 1111. If “AllMHz” is manually selected
PA1000 will send BCD code 0000.
PTT in 3.5 mm jack
Plug
Tip is the PPT in signal and it should be grounded for
transmit. PTT signal is in parallel with D9 connector
pin7. PTT signal is internally pulled up to +5 V with a 4.7
kilo-ohm resistor. Current sinking requirement is 1 mA.
The ring terminal is not connected inside PA1000 so you
can also use a MONO plug for PTT connector.
In case of JUMA TRX2 transcei er the PTT cable is not
needed. PTT signal is fed ia the input coaxial cable.
COM1 3.5 mm jack
Plug
Jack
This connector is a multi-use serial com for RS232, CI-V.
Tip is RXD and ring is TXD. In CI-V tip and ring must be
connected together in the PA1000 end of the cable.
Note1. Do NOT connect RS232 serial outputs together.
Note2. RS232 serial output can be connected to se eral
RS232 data inputs.
Note3. Icom CI-V open drain signals can be connected
in parallel with other CI-V signals like logging software.
AC Power Entry Module
Mains power switch, 2 x fuses and mains cable socket.
See the fuse alue markings in the rear panel if you
need to replace fuses.

JUMA PA1000 User Manual Version 1.44 update 2018-10-12 Page 9 of 15
Cable instructions for transceivers
JUMA TRX2 cable (RS232 band data)
JUMA TRX2 JUMA PA1000
RS232 connector COM1 connector
3.5 mm plug
Note1. Both ends 3.5 mm stereo plugs. A standard stereo audio cable can be used.
Note2. PTT cable is not needed. PTT signal is superimposed on RF in the coaxial cable.
ICOM CI-V cable (Band data)
ICOM JUMA PA1000
CI-V connector COM1 connector
3.5 mm plug
Note1. Both ends 3.5 mm plug. A mono plug can also be used in Icom end.
Note2. A standard 3.5 mm stereo audio cable can NOT be used. PA1000 end of that must be modified as shown.
ICOM PTT cable
RCA plug JUMA PA1000
Marked SEND in Icom PTT connector
3.5 mm plug
Note. A mono plug can also be used in JUMA PA1000 because the ring is not connected inside JUMA PA1000.
Elecraft KX3 cables
KX3 RS232 band data cable
KX3 ACC1 connector JUMA PA1000
3.5 mm plug COM1 connector
A standard 3.5 mm stereo audio cable can NOT be used as RS232 cable. 3.5 mm plug
Note1. In KX3 menu set AUTOINF to ANT CTRL
Note2. Select Elecraft Serial band data in PA1000
KX3 PTT cable
KX3 ACC2 connector JUMA PA1000
2.5 mm plug PTT connector
3.5 mm plug

JUMA PA1000 User Manual Version 1.44 update 2018-10-12 Page 10 of 15
Cable instructions for transceivers cont.
BCD band data (Elecraft K3, Yaesu and ot er BCD band data transceivers)
Note1. Select BCD BAND DATA in PA1000
Note2. A standard 15 pin VGA cable can NOT be modified for K3 cable because some pins are connected together
inside the molded VGA connector. Make a new cable with a 15 pin and a 9 pin male D-connector plugs.
Note3. Refer to the user manual of your transcei er for BCD band data output and PTT wiring.
Elecraft K3 ACC connector JUMA PA1000 BAND DATA connector
D15 male plug seen from solder side DB9 male plug seen from solder side
Yaesu FT-1000MP BAND DATA connector JUMA PA1000 BAND DATA connector
8 pin DIN male plug in cable D9 male plug seen from solder side
Yaesu FTDX3000 LINEAR connector. 15 pin male in cable. Follow the FT-1000MP signal names for pins 2, 3, 4, 5, 6, 7.