background image

      ________________________________________________________________________________ 
      Page 3 of 10 

 

 

 

VH Electronics   Slovakia 

             www.vhelectronics.sk 

 

 

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.4  Put into operation 

 
 
If your device was transported or stored in a cool or cold environment, it is necessary to unzip it 
first and let it dry in a warm enviroment  (by doing this you will protect your device against a 
possible water condensation). Then you should connect the connecting coaxial cable to the RF 
INPUT and RF OUTPUT jacks on the rear panel (N-female connector) and attach the PTT RCA 
(CINCH) connector. Broadcasting (Tx) is active when connected to GND. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

 

 

 

Back panel 

 
 

Содержание TAJFUN 1000

Страница 1: ...TAJFUN 1000 INSTRUCTION MANUAL www vhelectronics sk www kenwood sk ...

Страница 2: ...robust LDMOS VHF Power Amplifier hereafter PA working in amateur 432MHz and 144MHz band with output power up to 500W I 2 Technical parameters Frequency Coverage 432 440 MHz Amateur band 142 146 MHz Amateur band Operating Mode FM SSB CW DIGI Output Power 500W CW 450W SSB lineary 300W FM and DIGI 21 C 50 duty cycle Low Pass Filter Only on 440 MHz Input Power 12 16W Inside 6dB hybrid attenuator LDMOS...

Страница 3: ...er PWR o Reflected Power REF o Peak Power PEP o Temperature I 4 Put into operation If your device was transported or stored in a cool or cold environment it is necessary to unzip it first and let it dry in a warm enviroment by doing this you will protect your device against a possible water condensation Then you should connect the connecting coaxial cable to the RF INPUT and RF OUTPUT jacks on the...

Страница 4: ...pendently of the control of the PTT Rx Tx mode Advantage quiet operation I 4 2 Mode Contest QSO This mode is suitable for the Contest eventually for DIGI operation with high demands on cooling of the PA After switching of the PTT Tx mode it switches the maximum speed of the cooling fans After switching off the PTT mode Rx the speed is continuously controlled PWM according to the temperature of the...

Страница 5: ...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 4 Bargraph It shows the performance of the Output Power PWR Reflected Power REF and the Temperature TEMP they are all shown in a bargraph and their values appear in numerical form I 4 5 Peak It displays values as Standard but PWR P...

Страница 6: ...r U PWR and U REF mV for servicing I 5 Responding in excessing the parameters Alert Block Warning I 5 1 Output Power PWR Atlert when crossing PWR above the set value 500W it gets into a red bargraph the numeric value turns red and the buzzer beeps Block when crossing PWR above critical value 550W it declares Warning on the display and it blocks the LDMOS Inhibit 5V it turns the coax relay off and ...

Страница 7: ...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 3 Temperature Atlert when crossing the temperature above the set value 65 C it gets into a red bargraph the numeric value turns red and the buzzer beeps Block when crossing PWR above critical value 70 C it declares Warning on th...

Страница 8: ...V 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 5 Drain Current Atlert when crossing Current above the set value 20A the numeric value appears red and the buzzer beeps Block when crossing Current above the critical value 22A it declares Warning on the display and it blocks the...

Страница 9: ...________________________________________________________________________________ Page 9 of 10 VH Electronics Slovakia www vhelectronics sk DIAGRAM BLOCK ...

Страница 10: ...tch 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 tajfun 1000 144 a 432 mhz detail Normally set times T1 Relay IN 20ms T2 Relay OUT 25ms ATTENTION Carefully consider any change in these times not to cause destruction LD...

Отзывы: