Broadcast Concepts 400W VHF TV Pallet Amplifier

•55- 88 MHz Band 1 VHF TV
•400 watts linear output power 
•16dB gain typical
•32 volts (can operated at 28 volts with 10% reduced performance)
•Thermal tracking bias
•Temperature monitoring IC.
•Efficency 40%
•Input power 6 watts Typical.
•Input VSWR 1.5 maximum.
•P1dB 400W Minimum
•Shipping Weight: 2lbs
•5 Units in Stock

Warning: Failure to use a proper heat sink will cause the transistors to burn out. This type of failure is not
covered by warranty. This product can be ordered with a custom heat sink. Please contact factory for more
information.

Warning: Careless adjustment of the bias pots will cause the transistors to burn out. This type of failure is
not covered by warranty.

Electrical Specifications: 32V Idq=0.8A x 2 mosfet
Characteristics min typ max unit
Operating Frequency range 55 88 MHz
Fundamental output power – CW P1dB 400W W
Power Input 6 11 W
Input VSWR 1.15 1.20 dB
Power Gain 17 18 dB
Collector Efficiency 32 42 %
Collector Current 20 25 A dc
Insertion Phase variation (unit to unit) +/-3.5 degrees
Power gain (unit to unit) +/-0.7 dB
F2 Second Harmonic -30dB dB
F3 Third Harmonic -15dB dB
Bias Current per transistor: Factory set to
800ma @32V.
0.8 0.8 2.0 A dc
Drain voltage supply 28 32 32
Base plate operating temperature 0 70 Celsius
Load Mismatch (All phase angles, Id=25A) 5:1 VSWR