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4.4. Main Supply
CAUTION
Be sure you got PA with properly terminated line cable, corresponding with your power
system’s outlet. If not, contact your dealer. In such a case you should make the necessary
changes using a licensed electrician.
WARNING!
Be sure that your power system is correctly wired and properly rated! To use
adequately sized and connected grounding system is also very important.
4.5. Cooling
CAUTION
The amplifier must be installed in such a way that free flow of hot air from the amplifier
is allowed. Do not obstruct air intake and exhaust areas of the PA.
All of installed axial fans provide adequate cooling of the amplifier, even during long time
operation. Three upper fans they are activated, when inside temperature exceeds 40 deg.
Celsius. Their speed is gradually rising with increasing temperature. Two fans inside the
power supply start to operate depending on the current drawn by the MOSFET.
When the amplifier reaches inside temperature of 70 deg. Celsius, warning message
„Amplifier is too hot” appears on the display. At 75 degrees protection circuit will
automatically block transmitting.
5. OPERATION
WARNING!
Before switching PA on, make sure that amplifier is grounded, antenna or dummy load
is connected, and line cord is putted to the outlet.
CAUTION
Do not turn PA on for at least 2 hours after unpacking it and moving in its operating
location. Especially when amplifier was moved from a cold place to a warm one, because
not visible condensation may develop inside
,
and this could result in damage of the PA.
CAUTION
Before switching PA on, check connections between PA and TCVR.