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JUMA PA1000 User Manual

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JUMA PA1000
Linear Amplifier

User Manual

JUMA PA1000 User Manual
Version 1.50 update 2019-02-01
Page 1 of 19

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Summary of Contents for JUMA PA1000

  • Page 1: User Manual

    JUMA PA1000 Linear Amplifier User Manual JUMA PA1000 User Manual Version 1.50 update 2019-02-01 Page 1 of 19...

  • Page 2: Safety Warnings

    25W. It produces full-rated output of 1000W PEP with low input power, typically around 10W. The PA1000 is engineered to provide reliable use in normal amateur radio operation as rated using SSB and CW modes. A rugged, industrial-grade LDMOS RF power MOSFET is used. These devices have inherent high SWR tolerance but must be protected from overdrive and excessive input power.

  • Page 3: Precautions And Warnings

    This results from the inherent timing of ALC and compression circuits in the transceiver. To avoid amplifier damage, keep the EXCITER MAX PWR set to 100W in the PA1000 - unless you are using a low power transceiver or you are quite certain that your transceiver is not showing momentary power overshoot This setting will enable gain settings (from G1 to G4) appropriate for your transceiver.

  • Page 4: Simple User Interface

    Features • Nominal output power 1000W PEP – SSB and CW JUMA PA1000 is an ultra lightweight (just 5.5kg / 12 lb) solid state 1kW linear amplifier for HF and 6 meter • All HF bands including WARC bands and 50 MHz bands.
  • Page 5 JUMA PA1000 front panel Multi function Protection Reverse power Forward power display indicators LED bar LED bar TX ON LED Display page selection Operate/Standby Band selection push buttons and adjustments push button JUMA PA1000 rear panel BCD Band data in/out,...
  • Page 6 1dB. Always start with G1 which is the lowest gain by monitoring the LED bar power indicator. The gain setting is individual for each band. PA1000 will Proportional fan control adjustment. The fan will run remember the gain settings. Note. EXCITER MAX PWR with the maximum RPM at the selected MOSFET case setting may limit the max gain setting.
  • Page 7 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 Service Pages so that PA1000 will recall OPER/STBY state for the next start-up.
  • Page 8 3. Connect PTT and band data cable from transceiver. 3. Connect PTT cable from transceiver. See cable You may need one or two cables depending on instructions. In the case of JUMA TRX2 PTT cable is your transceiver. See the cable instructions. In the not needed.

  • Page 9: Rear Panel Connectors

    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 D9 female socket can also use a MONO plug for PTT connector.
  • Page 10 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...
  • Page 11 Cable instructions for transceivers cont. Elecraft K3 Band Data & PTT Elecraft K3 ACC connector JUMA PA1000 BAND DATA connector D15 male plug seen from solder side DB9 male plug seen from solder side Note. A 15 pin VGA cable can NOT be modified for a K3 cable because some pins are connected together inside the molded VGA plug.
  • Page 12 VGA plug. Make a new cable with a 15 pin and a 9 pin male D-connector plugs. Note3. Select BCD BAND DATA in JUMA PA1000 Note4. Make the following configuration to SunSDR2 PRO in Ext Ctrl tab.
  • Page 13 Kenwood transceiver. Kenwood is not sending band data event when the band is changed, it is polled by JUMA PA1000. To speed up the band change set PA1000 Radio Poll Rate to 500ms in the Service pages.
  • Page 14 Note2. In JUMA PA1000 set BAND DATA to Elecraft Serial and set the equal baud rate for both. Note3. Kenwood is not sending band data event, it is polled by JUMA PA1000. To speed up the band change set JUMA PA1000 Radio Poll Rate to 500ms in the Service pages.
  • Page 15 Icom 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.
  • Page 16 Service Pages are intended for advanced use, calibration and special settings. If you are not familiar with the service settings do not change anything and exit Service Pages by switching OFF the JUMA PA1000. To enter Service Pages keep the PAGE button pressed about 5 seconds until you see text “Service pages selected”.

  • Page 17: Firmware Programming

    Firmware programming JUMA PA1000 firmware is easy to update. The latest firmware is available on the JUMA website www.jumaradio.com. It is a HEX file with a version identification number (e.g. JUMA_PA1000_v102.hex). You can check your current firmware version in your JUMA PA1000 LCD display during start-up.
  • Page 18 JUMA PA1000 Block Diagram JUMA PA1000 User Manual Version 1.50 update 2019-02-01 Page 18 of 19...
  • Page 19 The warranty extends to the original purchaser only and is non-transferrable. It is effective as of the date the product is shipped. During the warranty period JUMA will repair or replace any defective part or parts of the product, without cost to the purchaser, and correct any malfunction caused by the defective parts or materials.

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