RFU300 - 300W FM RF Power Amplifier Pallet 88MHz-108MHz Input 5W output 300W
Designed for fm radio transmitter
this amplifier incorporates microstrip
technology to enhance ruggedness
and reliability
MOSFET TECHNOLOGY
this amplifier incorporates microstrip
technology to enhance ruggedness
and reliability
MOSFET TECHNOLOGY
• 87.5 ÷ 108 MHz 5W input
• 48 Volts
• Input/Output 50 Ω
• Pout : 250W min 320W max• Gain : 19 dB typ
• Class B Bias ADJ
• Low pass filter on board
• Devices: MRF151G or equivalent
• 48 Volts
• Input/Output 50 Ω
• Pout : 250W min 320W max• Gain : 19 dB typ
• Class B Bias ADJ
• Low pass filter on board
• Devices: MRF151G or equivalent
300W – FM Amplifier Pallet
Dimension (L x W x H): 150 x 50 x 15mm [5" x 2" x 0.6"]
This picture is a mere example, it does not bind the
provided product
Dimension (L x W x H): 150 x 50 x 15mm [5" x 2" x 0.6"]
This picture is a mere example, it does not bind the
provided product
ABSOLUTE MAXIMUM RATINGS (Device Flange T = 70 °C)
Vdd Drain Voltage Supply: 52V
Idc Supply Current: 12A
swr Load Mismatch (all phase angles, Tc=40°C, Id=10A): 3:1SWR
Pin Input Power: 10W
Tstg Storage Temperature Range: -30 to +100 °C
Tc Operating Temperature: -10 to +70 °C
Idc Supply Current: 12A
swr Load Mismatch (all phase angles, Tc=40°C, Id=10A): 3:1SWR
Pin Input Power: 10W
Tstg Storage Temperature Range: -30 to +100 °C
Tc Operating Temperature: -10 to +70 °C
ELECTRICAL SPECIFICATIONS (Base Plate T = 45 °C, 50Ω loaded, Vdd = 48 V @ 10A)
Operating Frequency Range: 86 to 109 MHz
Fundamental Output Power: 280 300 320 WInput Power: 5 W
Power Gain (300W output): 17.5 19db
Drain Efficiency (Load 50Ω): 65 75 %
Input SWR : 1.5:1 1.7:1 SWR
Insertion Phase Variation (Unit to Unit ): -/+ 10 dgrees
Power Gain Variation (Unit to Unit): -/+ 1 db
F2 Second Harmonic: -30 Db
F3 Third Harmonic: -35 db
Fundamental Output Power: 280 300 320 WInput Power: 5 W
Power Gain (300W output): 17.5 19db
Drain Efficiency (Load 50Ω): 65 75 %
Input SWR : 1.5:1 1.7:1 SWR
Insertion Phase Variation (Unit to Unit ): -/+ 10 dgrees
Power Gain Variation (Unit to Unit): -/+ 1 db
F2 Second Harmonic: -30 Db
F3 Third Harmonic: -35 db
ELECTRICAL CONNECTIONS
Warning – Operating without antenna or dummy load (50ohm) can permanently damage to the best fm transmitter.
Warning – Check the output connection before applying DC voltage to the module.
Warning – Operating without antenna or dummy load (50ohm) can permanently damage to the best fm transmitter.
Warning – Check the output connection before applying DC voltage to the module.
HEATSINK MOUNTING/HARDWARE
Warning – This module must be place on a heat sink that is at least 160X80X30 mm
If the module will be over heated above 50°C – Air fan should be applied to the heat sink.
Warning – Overheating can cause permanently damage to low power fm.
Warning – This module must be place on a heat sink that is at least 160X80X30 mm
If the module will be over heated above 50°C – Air fan should be applied to the heat sink.
Warning – Overheating can cause permanently damage to low power fm.
1.HEATSINK TOOLING
-Planarity: typical value 1μ
-Roughness: better than 0.05 mm
2.THERMAL COMPOUND
-Paste with silicones
-Thickness: optimum between 0.06 mm and 0.15 mm, on the whole back surface
of the amplifier.
3.SCREWS
-M3 hexagon socket head cap screws
-The recommended Torque is 12 Kg/cm for M3 type screws
4.TIGHTENING ORDER
-See next figure: (all dimensions are in mm)
-Planarity: typical value 1μ
-Roughness: better than 0.05 mm
2.THERMAL COMPOUND
-Paste with silicones
-Thickness: optimum between 0.06 mm and 0.15 mm, on the whole back surface
of the amplifier.
3.SCREWS
-M3 hexagon socket head cap screws
-The recommended Torque is 12 Kg/cm for M3 type screws
4.TIGHTENING ORDER
-See next figure: (all dimensions are in mm)
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