Power Amplifier Module Pa 702Mp (Mod Gv 40335 / Mod Gv 40336) Pa 704Mp (Mod Gv 40298 / Mod Gv 40309) - Hitachi EC702MP-BB3 Operation Manual

4.2. Power Amplifier Module
PA 702MP (MOD GV 40335 / MOD GV 40336)
PA 704MP (MOD GV 40298 / MOD GV 40309)
This is an air-cooled UHF power amplifier drawer composed of an RF block with two (2) or four (4) power
transistors that utilize Doherty's high efficiency technology with efficiency between 34% and 41%,
depending on the operating channel.
Main features:
⇨ High efficiency
⇨ Power Supply redundancy - 2 Power Supplies (RPC-1600-48)
⇨ Doherty Configuration
⇨ Standing fans accessible from the front panel
⇨ Removable power supply at the front panel of the drawer
⇨ 2U Power Drawer for 19" rack
⇨ Broadband power amplifiers
⇨ Power transistors LDMOS Ampleon BLF-888E
⇨ Automatic control of the quiescent currents of the power transistors depending on the
temperature
⇨ Automatic fan speed control according to power transistor's temperature
⇨ Protection against VSWR and Overdrive
⇨ Power Factor Corrector (PFC) at power supply (PFC)
⇨ Protection against over current in the power supply
⇨ Settings and measures via terminal
⇨ Automatic restart after alarm event
⇨ Matched sample of the output signal
⇨ Integrated MOD bus Control
Never unplug any Power Amplifier Drawer while the Transmitter is on due to the
risk of damaging the equipment.
E-Compact MP-BB3 Series
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