JUMA PA1000 User manual

JUMA PA1000 User Manual Version 1.27 Page 1 of 15
JUMA PA1000
Linear Amplifier
User Manual

JUMA PA1000 User Manual Version 1.27 Page 2 of 15
Congratulations!
We are happy that you have selected the JUMA PA1000 linear a plifier.
You will find it easy to use. We hope you enjoy using your JUMA PA1000.
Safety warnings!
Dangerous voltage inside JUMA PA1000.
Check that your ains AC voltage is the sa e as arked on the rear panel.
Use a AC ains socket with a protective earth.
If a ains protective earth is not available connect your station ground to the rear panel ground ter inal.
If you need to change the ains fuses switch OFF the power with the rear panel rocker switch and re ove the ains
cable fro the power entry odule and that wait at least 5 inutes before fuse change.
Before opening the enclosure switch OFF JUMA PA1000 with the rear panel rocker switch and disconnect the ains
cable. After that wait at least 5 inutes before opening the enclosure.
DO NOT use JUMA PA1000 without enclosure.
Cautions!
Do not drive ore than 25 watts RF to the TRX input connector.
So e transceivers ay trans it up to 100 W for a short ti e although you have selected 10 W output. To avoid
MOSFET failure keep the EXCITER MAX PWR setting at 100W until you are ABSOLUTELY SURE that your transceiver is
not o entarily trans itting ore than selected. See settings instructions.
Roller-inductor tuners are the ost troubleso e of all tuners. The "hot-tuning" roller-inductors is a serious concern
for all trans itters, and even to so e vacuu -tube trans itters. The proble with these tuners is that the electrical
continuity between the roller, the spring-loaded rod on which it slides and the coil seldo re ains continuous
conductivity, especially whilst the roller is in otion. Very high voltage transients during tuning of a roller-inductors
are a well-known cause for da age. Thus, any antenna tuner, especially a roller-inductor tuner should be adjusted at
the lowest practicable RF power level, or even with an antenna analyzer, rather than 1kW RF power. Warranty is void
if you break your JUMA PA1000 a plifier with any antenna tuner when JUMA PA1000 a plifier in OPER state.
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 odes. PA1000 will go to te perature protection
during long key-down periods. Avoid long key-down periods by following the te perature indication.
If the antenna is not properly atched you ay not get full power output. SWR better than 1:1.5 is reco ended. If
the SWR is approaching 1:2 you ay need to lower the a plifier gain or reduce drive level.
Copyright
JUMA PA1000 is designed in Finland by OH2NLT and OH7SV
JUMA® is a registered trade ark of Juha Niinikoski and Matti Hohtola.
All rights reserved. Copyright ju aradio.co

JUMA PA1000 User Manual Version 1.27 Page 3 of 15
JUMA PA1000 o er iew
JUMA PA1000 is a very light weight solid state 1 kW
linear a plifier for HF and 6 eter bands. JUMA
PA1000 is using a ost odern LDMOS transistor in
the RF a plifier. The RF atching is based on novel
design which provides very good efficiency. The power
supply is also latest technology, a light weight
resonance power supply. JUMA PA1000 accepts band
data fro popular transceivers. It supports parallel
BCD, serial band data and analog band voltage. The
band can also be selected anually.
JUMA PA1000 is fully protected against excessive SWR,
over current and over te perature. It withstands
wrong antennas, accidental open or short circuit in the
RF output. The SWR protection is based on reverse RF
power co ing back fro 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 infor ation, the LED bar shows
the output power and reverse power. OPER, AUTO
band and protection are indicated by their own LEDs.
Rear panel has ains connector, TRX connector, ANT
connector, PTT input and band data input. Fir ware
update is easy with a built in boot loader and with a PC.
Features
•No inal output power 1000 W PEP
•All HF bands including WARC bands and 50 MHz
•Input power: Adjustable gain for 5 W...25 W drive
•Input SWR better than 1 : 1.3 on all bands
•Mains input 230 VAC or 115 VAC
•LCD display for band, gain, SWR, voltage, current and
te perature
•LED bar display for forward and reverse RF power
•SWR, over current and over te perature protection
•Te perature controlled user adjustable proportional
fan speed
•Low fan noise 40dB(A) in stand-by and 55dB(A) at
ax fan speed
•Auto band or anual band selection
•Band data for ats: BCD, RS232, serial TTL, C-IV and
band voltage
•Converts serial, voltage or anual band data input
to BCD band data output. Convenient feature for
antenna switching etc applications.
•S all size: W x H x D 261 x 135 x 300
•Very light weight: 5.5 kg

JUMA PA1000 User Manual Version 1.27 Page 4 of 15
JUMA PA1000 front panel
JUMA PA1000 rear panel
Protection
indicators
Reverse power
LED bar
Forward power
LED bar
Multi function
display
Band selection
push buttons
Operate/Standby
push button
Display page selection
and adjust ents
TRCVR RF
connector
Band data input,
PTT input
, COM2
AC Power
e
ntry
odule
Ground
ter inal
Antenna
connector
PTT input
COM1 for RS232,
TTL and CI-V
TX ON LED

JUMA PA1000 User Manual Version 1.27 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 a plifier be eans of the adjustable input
attenuator. The gain can be set fro G1 to G8 with a
step of 1dB. Always start with G1 which is the lowest
gain by onitoring the LED bar power indicator. The
gain setting is individual for each band. PA1000 will
re e ber the gain settings. Note. EXCITER MAX PWR
setting ay li it the ax gain setting.
Note. The te perature reading is indicating the final
transistor case te perature. The te perature rise of
the heatsink is about half of that te perature rise. Max
transistor case te perature is 105°C.
Other 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 adjust ent
LCD contrast adjust ent
Band data selection. Options: BCD data, JUMA Serial,
Ico CI-V, Kenwood Serial, Elecraft Serial, Yaesu
Voltage, Ico Voltage.
COM1 baud rate adjust ent
COM2 baud rate adjust ent
Fan control adjust ent. The fan will run with axi u
RPM at the selected final transistor case te perature.
In heavy use you can lower this setting for proactive
cooling. In light use you can increase the setting.
Defines the ax power level of your transceiver.
Options are: 5W, 10W, 25W, 50W, 100W. This setting
protects the final transistors by li iting the ax gain
setting. Reduce this setting only if you are ABSOLUTELY
SURE that your transceiver is not o entarily
trans itting ore than selected.
The power supply ay disturb reception at so e
specific frequency. In this case you can activate PSU
noise shift. It is lowering the power supply voltage by
few volts during reception and thus shifting the
interference away fro the receive frequency.

JUMA PA1000 User Manual Version 1.27 Page 6 of 15
LED Bar Power Indicator
The LED bar RF power indicator gives a real ti e view of forward and reverse power. The LED bar hold ti e (100 s)
and the decay speed (200W/100 s) can be adjusted in the service page if desired.
Protection indicators
The protection is i ple ented 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 reverse power
li it is exceeded. In this case check antenna, reduce
PA1000 gain or reduce exciter drive.
OVER CURRENT LED will be lit if the final transistor
current li it is exceeded. In this case reduce gain or
reduce drive. You can onitor the current in the LCD.
No inal current for full power is approxi ately 24A.
OVER TEMPERATURE LED will be lit if the transistor
te perature is exceeded. In this case reduce power.
Over te perature led will go off when the te perature
has fallen below the threshold level. However a plifier
will stay in STBY state.
After you have checked the protection situation clear it
by pushing the OPER button.
Band selection buttons
Push AUTO button for auto atic band selection. Green
LED will be ON and the ain display is showing the
band. If a valid band data is not available the ain
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 ade by pushing and
buttons.
In anual band selection there is a special “AllMHz”
band which indicates that the final low-pass filters are
bypassed. Do not trans it with “AllMHz” selection
without external low-pass filter because the har onics
are not filtered.
JUMA PA1000 saves the band selection ode for the
next power-up.
OPER / STBY button
Si ply 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 odified in the service pages so that PA1000 will e orize OPER/STBY state for
the next start-up.

JUMA PA1000 User Manual Version 1.27 Page 7 of 15
Quick Guide for the first time use
(Auto Band Selection)
1. Connect antenna with coaxial cable.
2. Connect transceiver with coaxial cable.
3. Connect PTT and band data cable fro transceiver.
You ay need one or two cables depending on
your transceiver. See the cable instructions. In the
case of JUMA TRX2 PTT cable is not needed.
4. Adjust transceiver RF power output level to 10W.
5. Connect AC ains 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 several ti es. Use ADJUST buttons to
select a co patible band data for at. In case of a
serial band data check also the COM1 baud rate
that it atches with your transceiver setting.
7. Push PAGE button several ti es 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 ain display
page. Check that PA1000 is tracking the transceiver
band.
9. Push OPER button. LED indicates operate state.
10. Trans it SSB or CW with your transceiver and
watch the output power LED bar.
11. Adjust PA1000 gain with ADJUST buttons in the
ain page (G1, G2, G3…) for desired power level on
each band. Note. The ax gain setting ay be
li ited by MAX EXCITER PWR setting.
Next time use
Si ply switch on PA1000 and push OPER button.
JUMA PA1000 will e orize all other settings.
Quick Guide for the first time use
(Manual Band Selection)
1. Connect antenna with coaxial cable
2. Connect transceiver with coaxial cable
3. Connect PTT cable fro transceiver. See cable
instructions. In the case of JUMA TRX2 PTT cable is
not needed.
4. Adjust transceiver RF power output level to 10W.
5. Connect AC ains cable and switch on JUMA
PA1000 by the rear panel switch
6. Select anually correct band with BAND
buttons. Main display shows the band.
7. Push OPER button (LED indicates operate state)
8. Trans it SSB or CW with your transceiver and
watch the output power LED bar.
9. Adjust PA1000 gain with ADJUST buttons in the
ain page (G1, G2, G3…) for desired power level on
each band. Note. The ax gain setting ay be
li ited by MAX EXCITER PWR setting.
Next time use
Switch on PA1000, check the band and push OPER
button. JUMA PA1000 will e orize all other
settings.

JUMA PA1000 User Manual Version 1.27 Page 8 of 15
Rear Panel Connectors
BAND DATA / COM2 Connector
12345
6789
D9 fe ale socket
BAND DATA / COM2 Connector Description
Pin # Description
1 BCD A (Band data)
2 RS232 OUT (Serial co output)
3 RS232 IN (Serial co 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)
BCD Band Data Table
Band Freq BCD D BCD C BCD B BCD A
160 1.8 MHz 0 0 0 1
80 3.5 MHz 0 0 1 0
40 7.0 MHz 0 0 1 1
30 10 MHz 0 1 0 0
20 14 MHz 0 1 0 1
17 18 MHz 0 1 1 0
15 21 MHz 0 1 1 1
12 24 MHz 1 0 0 0
10 28 MHz 1 0 0 1
6 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 valid and
they are indicated as “?? MHz”. In that case PA1000
will not trans it.
Tip. JUMA PA1000 converts serial, voltage or anual
band data to BCD output on the four BCD lines in D9
connector. This BCD output can be used to control
antennas or other equip ent. The output is 0V/+5V
with an output i pedance of 1kΩ. Thus the BCD output
signals ust be buffered e.g. with a BCD to Deci al
decoder IC. If a valid band data is not available PA1000
will output BCD code 1111. If “AllMHz” is anually
selected PA1000 will send BCD code 0000.
PTT in 3.5 mm jack
Plug
Jack
Tip is PPT in and it should be grounded for trans it.
PTT signal is parallel with D9 connector pin 7. PTT signal
is internally pulled up to +5 V with a 4.7 kilo-oh
resistor. Current sinking require ent is 1 A.
In case of JUMA TRX2 transceiver the PTT cable is not
needed. PTT signal is fed via the input coaxial cable.
COM1 3.5 mm jack
Plug
Jack
This connector is a ulti-use serial co for RS232, CI-V
and serial TTL. Tip is RXD and ring is TXD. In CI-V tip and
ring ust be connected together in the PA1000 end of
the cable.
AC Power Entry Module
Mains power switch, 2 x fuses and ains cable socket

JUMA PA1000 User Manual Version 1.27 Page 9 of 15
Cable instructions for transcei ers
JUMA TRX2 cable (RS232 band data)
JUMA TRX2 JUMA PA1000
RS232 connector COM1 connector
Both ends 3.5 stereo plug. A standard stereo audio cable can be used.
PTT cable is not needed. PTT signal is fed via coax cable.
ICOM CI-V cable (Band data)
ICOM JUMA PA1000
CI-V connector COM1 connector
Both ends 3.5 plug. Mono plug can be used in Ico end.
A standard 3.5 stereo audio cable can NOT be used. PA1000 end of that ust be odified.
Additionally a PTT cable is needed. Connect it to PTT jack or to the D9 connector.
PTT cable
JUMA PA1000
Ico as an exa ple PTT jack tip
IC-756 RCA connector (SEND) or pin 7 (PTT)
IC-706 ACC connector (HSEND) and pin 5 (GND)
Refer your transceiver anual for PTT/TX-ON/Keyout/Keyline/Trans it etc out wiring. in D9 connector
Elecraft KX3 cables
KX3 RS232 band data cable
KX3 ACC1 connector JUMA PA1000
3.5 plug COM1 connector
A standard 3.5 stereo audio cable can be used as RS232 cable. 3.5 plug
KX3 PTT cable
KX3 ACC2 connector JUMA PA1000
2.5 plug ring PTT connector
3.5 plug tip
Note1. Select Elecraft K3/KX3 in PA1000
Note2. In KX3 enu set AUTOINF to ANT CTRL

JUMA PA1000 User Manual Version 1.27 Page 10 of 15
Cable instructions for transcei ers cont.
BCD band data (Elecraft K3, Yaesu etc. BCD band data transcei ers)
Elecraft K3 wiring shown JUMA PA1000
ACC connector BAND DATA connector
D15 ale in cable D9 ale in cable
Note1. A standard 15 pin VGA cable can NOT be odified for K3 cable because so e pins are connected together
inside the olded VGA connector. Make a new cable with a 15 pin and a 9 pin ale D-connector plugs.
Yaesu FT-1000MP shown JUMA PA1000
BAND DATA connector BAND DATA connector
8 pin DIN ale in cable D9 ale in cable
Note2. Select BCD BAND DATA in PA1000
Note3. In the case of other transceiver refer your transceiver anual for BCD band data ouput and PTT wiring.

JUMA PA1000 User Manual Version 1.27 Page 11 of 15
Cable instructions for transcei ers cont.
Elecraft K3 serial COM cable
JUMA PA1000
COM1 connector
Elecraft K3 RS232 connector 3.5 plug
D9 ale in cable
Note1. Select Elecraft Serial in PA1000
Note2. Set K3 to Auto-info ode 1
Note3. If you control also other device e.g. SteppIR antenna with the sa e RS232 share only data co ing fro K3.
Do not connect RS232 data outputs together. See the picture above.
Note4. Additionally a PTT cable is needed. Refer to the BCD band data cable instruction.
Kenwood serial COM cable
JUMA PA1000
COM1 connector
Kenwood COM connector
D9 fe ale in cable
Additionally a PTT cable is needed. Use Kenwood REMOTE connector Pin 4 for PTT and Pin 2 for GND. See PA1000 PTT
cable in the previous pages. Note also Kenwood enu settings for linear a plifier control.
Note. Select Kenwood Serial in PA1000 settings

JUMA PA1000 User Manual Version 1.27 Page 12 of 15
Cable instructions for transcei ers cont.
YAESU band oltage (0…5V)
YAESU ACC connector JUMA PA1000 BAND DATA/COM2
(FT-817 connector shown) D9 ale in cable
See your Yaesu anual for correct
connector and pin order.
Yaesu Band Voltage Table
Band Freq Nominal oltage
160 1.8 MHz 0.33 V
80 3.5 MHz 0.67 V
40 7.0 MHz 1.00 V
30 10 MHz 1.33 V
20 14 MHz 1.67 V
17 18 MHz 2.00 V
15 21 MHz 2.33 V
12 24 MHz 2.67 V
10 28 MHz 3.00 V
6 50 MHz 3.33 V

JUMA PA1000 User Manual Version 1.27 Page 13 of 15
Cable instructions for transcei ers cont.
ICOM band oltage (0…8V)
ICOM ACC connector JUMA PA1000 BAND DATA/COM2
(IC-7000 connector shown) D9 ale in cable
See your Ico anual for correct
connector and pin order.
Note1. Ico band voltage is not supporting 50 MHz and WARC bands but 10 MHz is defined as 0 V. Zero voltage is
not a proper level to verify valid band data and thus JUMA PA1000 needs 0.1 V to 1 .0 V for 10 MHz
selection. 50 MHz is unofficially selected at voltage 1.0 V to 2.0 V.
Note2. So e Ico transceivers need a odification to activate band voltage output. See your Ico anual.
Note3. It is reco ended to use Ico CI-V serial band data instead of Ico band voltage if available.
Icom Band Voltage Table
Band Freq Voltage range
160 1.8 MHz 7.0 V - 8.0 V
80 3.5 MHz 6.0 V – 6.5 V
40 7.0 MHz 5.0 V – 5.5 V
30 10 MHz 0.1 V – 1.2 V
20 14 MHz 4.0 V – 4.5 V
15 /(17 ) 21 MHz 3.0 V – 3.5 V
10 /(12 ) 28 MHz 2.0 V – 2.5 V
6 50 MHz 1.0 V – 2.0 V

JUMA PA1000 User Manual Version 1.27 Page 14 of 15
Ser ice Pages
Service Pages are intended for advanced use, calibration and special settings. If you are not fa iliar with the service
settings do not change anything and exit Service Pages by switching OFF the PA1000.
To enter Ser ice Pages keep the PAGE button pressed about 5 seconds until you see text “Service pages selected”.
To exit Ser ice Pages keep the PAGE button pressed again about 5 seconds until you see text “Main pages selected”.
Push the PAGE button one after another for each service page and use the ADJUST buttons to change the
setting.
Radio Poll Rate (Default = 4000 ms, 0=No poll)
Defines the serial band data polling rate
CI-V Radio Address (Default = 00H)
Defines Ico CI-V address
See your Ico anual
Beep len, 0=OFF (Default = 50 ms)
Defines audible key beeb length
Value 0 shuts down the key beep
Voltage Cal mult (Default = 10619)
Calibrates voltage reading
Current Cal mult (Default = 8000)
Calibrates current reading
Pwr Cal mult <30 MHz (Default = 1.00)
Calibrates LED bar power reading below 30 MHz
Pwr Cal mult 50 MHz (Default = 1.25)
Calibrates LED bar power reading at 50 MHz
Power FWD REV (read only)
Forward and reverse reading for R&D use
Note1.
The service settings are saved when you exit the
Service Pages with a long PAGE button push.
Note2.
If you have accidentally changed so ething in service
pages you can restore factory calibration values in the
“Factory cal” page
LED Bar Hold (Default = 100 ms)
Defines the hold ti e for the LED bar indicator
LED Bar Decay (Default = 200 W/100ms)
Defines the decay speed of the LED bar indicator
Keep OPER state (Default = No)
Defines if the OPER state is saved for start-up
BCD band bits in/out (read only)
Shows detected BCD band data input or converted BCD
band data output in binary for at
COM1 RX/COM2 RX (read only)
Shows received a ount of bytes in COM ports
R&D use only
Factory cal, Set=9 Count=0
Restores factory calibration values
Needs 9 keystrokes to avoid accidental restore
Factory defaults, Set=9 Count=0
Restores factory defaults
Needs 9 keystrokes to avoid accidental restore

JUMA PA1000 User Manual Version 1.27 Page 15 of 15
Firmware programming
JUMA PA1000 fir ware is easy to update. The latest fir ware is available in JUMA PA1000 site. It is a HEX file with a
version identification nu ber (e.g. JUMA_PA1000_v102.hex). You can check your current fir ware version in your
JUMA PA1000 LCD display during start-up.
All you need is the bootloader client for Windows and a RS232 progra ing cable. The cable is connected to a RS232
port of your PC or via a RS232-USB adapter. FTDI odel of RS232-USB adapter is reco ended. See the progra ing
cable drawing.
Quick guide for fir ware progra ing
1. Download the latest HEX file to your hard disk
2. Connect the progra ing RS232 cable
3. Run the Windows bootloader client (Ingenia dsPIC Bootloader)
4. Check bootloader client COM configuration and click “configuration done”
5. Start-up JUMA PA1000 while keeping the PAGE button pushed
6. Open the downloaded HEX file into the bootloader client
7. Click the “start write” button
8. When you see “write co pleted” restart JUMA PA1000
The bootloader client and the latest fir ware HEX file can be found here www.ju aradio.co /ju a-pa1000
Firmware programming cable drawing