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JUMA PA1000 User Manual

Linear amplifier
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JUMA PA1000
Linear Amplifier

User Manual

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

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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 1.44 update 2018-10-12 Page 1 of 15...

  • Page 2: Safety Warnings

    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.

  • Page 3: Simple User Interface

    JUMA PA1000 overview Features • Nominal output power 1000 W PEP JUMA PA1000 is a very light weight solid state 1 kW linear amplifier for HF and 6 meter bands. JUMA • All HF bands including WARC bands and 50 MHz PA1000 is using a most modern LDMOS transistor in •...
  • Page 4 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 and adjustments push button push buttons JUMA PA1000 rear panel BCD Band data in/out,...
  • Page 5 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 Fan control adjustment. The fan will run with maximum remember the gain settings. Note. EXCITER MAX PWR RPM at the selected MOSFET case temperature.
  • Page 6 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 memorize OPER/STBY state for the next start-up.
  • Page 7 • Adjust gain (Gx) with SSB or CW mode to a desired output power. Do not use AM, FM or similar modes because they may provide high power transients to PA1000. JUMA PA1000 User Manual Version 1.44 update 2018-10-12...

  • Page 8: Rear Panel Connectors

    BCD to Decimal Mains power switch, 2 x fuses and mains cable socket. decoder IC. If a band data is not available PA1000 will See the fuse value markings in the rear panel if you output BCD code 1111.
  • Page 9 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 10 Cable instructions for transceivers cont. BCD band data (Elecraft K3, Yaesu and other 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.
  • Page 11 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 12 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 13 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 14 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 15: Firmware Programming

    Firmware programming JUMA PA1000 firmware is easy to update. The latest firmware is available in JUMA PA1000 site. 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.

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