70cm Solid State Linear Power Amplifier 1KW

Just like the Harris amplifier, this amp was based on use of 480-890 MHz Pallet, removed from decommissioned UHF TV transmitter. This Dual LDMOS BLF888A amp required significantly more work. Other than the cooling, FET DC power switch had to be implemented. Also Single Band SSPA controller from www.60DBM.com with built in sequencer and drivers for peripherals such as antenna relays, and LNA control was incorporated. The controller offers the following protection: Over voltage, Over current, RF in overdrive, RF out, SWR and RF output devices temperature.