TAJFUN 1000 INSTRUCTION MANUAL www.vhelectronics.sk www.kenwood.
Acknowledgment Thank you for purchasing Power linear amplifier TAJFUN 1000 50/70 from VH Electronics. During its production, we used the latest knowledge in the field of VHF Power amplifiers and the most advanced technology in the management, communication and display systems. We believe that our product will exceed your expectations and will be working properly to your satisfaction. Please take a few moments to read this manual and get acquainted with this device. I. GENERAL INFORMATION I.
I.3 Protection, measurements and display Protection PWR, REF, Temperature, Imax, Umax/Umin Control / Display Colour TFT display Measurements and display: o Drain Current o DC Voltage o Output Power PWR o Reflected Power REF o Peak Power PEP o Temperature I.
Insert a supplied power cord into the POWER. Then turn on the power switch. Initializing and control equipment starts. After a short time the fans will start, initialize the TFT touch screen and display: Basic menu - “Home QSO“ , “Contest QSO“ By pressing an icon on the screen we select: I.4.1 Mode Home QSO This mode is suitable for the standard operation of the Home for the occasional QSO with less demand for cooling of the PA.
By pressing on the Icon, you can choose from the following views: o o o o I.4.3 Standard Bargraph Peak All values Standard It shows the performance of the Output Power - PWR, Reflected Power – REF, both appears in a bargraph and their values are represented in a numerical form + it shows the values of the Temperature, Current and Voltage Mode Rx Mode Tx I.4.
I.4.6 All values It displays values as Standard. PWR PEP and REF PEP are displayed in the peak value and the maximum value are represented during the hold of the PTT (Tx mode) + it shows the values of the Coupler U PWR and U REF [mV] for servicing. I.5 Responding in excessing the parameters Alert / Block-Warning I.5.
I.5.2 Reflected Power REF Alert - when crossing PWR above the set value (≥100W) it gets into a red bargraph, the numeric value turns red and the buzzer beeps Block - when crossing REF above critical value (≥110W) it declares "Warning" on the display and it blocks the LDMOS (Inhibit -5V), it turns the coax relay off and it blocks the PTT. In order to restore operation it is necessary to “Restart“ – confirm “Warning“ and return to the Display operation Alert I.5.
I.5.4 DC Voltage Alert - when crossing DC Voltage above the set value (≥50V) the numeric value turns red and the buzzer beeps Block - when crossing DC Voltage above critical value (≥55V ) it declares "Warning" on the display and it blocks the LDMOS (Inhibit -5V), it turns the coax relay off and it blocks the PTT. In order to restore operation it is necessary to “Restart“ – confirm “Warning“ and return to the Display operation Alert I.5.
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I.6 Sequencer I.6.1 Time control coaxial relay Control unit „Control Board“ switch input and output coaxial relays in the correct time sequence according to the PTT signal. Time T1 and T2 can be changed using the software Service Tajfun 1000 via USB port PA. http://vhelectronics.sk/index.php/en/ham-radio-vhf-uhf/big-tajfun-1000-144-mhz-detail Normally set times: T1 (Relay IN) ...... 20ms T2 (Relay OUT)...
