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1.5 The PA is constructed with the following protection circuits and useful features:
3
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Heat up time checking circuit (3 min)
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Protection circuits (Ia, Ig1, temperature, SWR>3,overdrive)
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Cooling fans (2 pcs)
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Function and status indicator LEDs (6 pcs)
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4KVA transformer
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OPTO coupled PTT switch
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Built in I/O coax relays
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External HV power supply
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