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TUNING INSTRUCTIONS
Please note:Before starting tuning you have to check you have connected the correct
antenna or a 50 Ohms resistance load to the antenna output socket!
SWITCHING ON THE AMPLIFIER:
Put the OPR/STBY switch to STBYposition
Press the
ON
The amplifier will follow the following steps:
Thetoroidal transformers are switched on step by step.
The blower of tube is switched on to low speed.
The HV will display voltage of around 3.2kV
The WAITLCD lights up
After switching on you have to check the function of the blower. Air must be blown out of the
exhaust Chimney from the ceramic tetrode. If there is any failure you must press the
button immediately!
Heating the tube takes about 150 seconds. After this time the WAITLCD changes WAITand
the amplifier is ready for operation.
TUNING THE AMPLIFIER TO AN OUTPUT OF 2000 W PEP
HF2013DX-A will tune automatically to the TRX frequency via CAT interface.
1. Reduce the power output of your transceiver to the 0.
2. Switch OPR/STBY to OPRposition – The LCD will display
3. Select the
TUNE
4. Key the TRX PTT and increase driver power to 10W (OUTPUT power will be about
350W)
HF2013DX-A HF AMPLIFER INSTRUCTION MANUAL
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Page 25 of 37
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