RFU300 - 300W FM RF Power Amplifier Pallet 88MHz-108MHz Input 5W output 300W

Total:363 USD

Item:353 USD   Shipping:10 USD

RFU300 - 300W FM RF Power Amplifier Pallet 88MHz-108MHz Input 5W output 300W

Designed for FM radio transmitters
this amplifier incorporates microstrip
technology to enhance ruggedness
and reliability

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

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


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

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 W
Input 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

Warning – Operating without antenna or dummy load (50ohm) can permanently damage to the RF power transistor.
Warning – Check the output connection before applying DC voltage to the module.

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 the power transistor.
-Planarity: typical value 1μ
-Roughness: better than 0.05 mm
-Paste with silicones
-Thickness: optimum between 0.06 mm and 0.15 mm, on the whole back surface
of the amplifier.
-M3 hexagon socket head cap screws
-The recommended Torque is 12 Kg/cm for M3 type screws 
-See next figure: (all dimensions are in mm)



Total:363 USD

Item:353 USD   Shipping:10 USD
 How far(long) the transmitter cover?

The transmission range depends on many factors. The true distance is based on the antenna installing height , antenna gain,  using environment like building and other obstructions , sensitivity of the receiver, antenna of the receiver . Installing antenna more high and using in the countryside , the distance will much more far.

EXAMPLE 5W FM Transmitter use in the city and hometown:

I have a USA customer use 5W fm transmitter with GP antenna in his hometown ,and he test it with a car, it cover 10km(6.21mile).

I test the 5W fm transmitter with GP antenna in my hometown ,it cover about 2km(1.24mile).

I test the 5W fm transmitter with GP antenna in Guangzhou city ,it cover about only 300meter(984ft).

Below are the approximate range of different power FM Transmitters. ( The range is diameter )

0.1W ~ 5W FM Transmitter :100M ~1KM

5W ~15W FM Ttransmitter : 1KM ~ 3KM

15W ~ 80W FM Transmitter : 3KM ~10KM

80W ~500W FM Transmitter : 10KM ~30KM

500W ~1000W FM Transmitter :  30KM ~ 50KM

1KW ~ 2KW FM Transmitter : 50KM ~100KM

2KW ~5KW FM Transmitter : 100KM ~150KM

5KW ~10KW FM Transmitter : 150KM ~200KM

How to contact us for the transmitter?

Call me +8615915959450    OR
Email me
tell me   1.How far you want to cover in diameter ?
             2.How tall of  you tower ?
             3.Where are you from ?
And we will give you more professional advice.

About Us

We specialized in production and sales of FM / TV Transmitter , FM / TV antenna , the FM / TV transmitter accessories. We have been exporting FM /TV transmitter for 6 years. We have clients all over the world, not only the resellers but also the consumers. With 6 years experience in this field ,we have professional team and excellent aftersales service. We dedicated in supplying the best quality products with competive prices and excellent customer sevice! If you have any question about it , No matter you buy or not, please feel free to tell us your questions,we are very willing to help you and solve your problems. Contact email : sky@cantonmade.com

Our Factory 

We have modernization of the factory . You are welcome to visit our factory when you come to China.

At present , there are already 1095 customers around the world visited our Guangzhou Tianhe office .  If you come to China , you are welcome to visit us .

At Fair

This is our participation in 2012 Global Sources Hong Kong Electronics Fair . Customers from all over the world finally have a chance to get together.

Where is Fmuser ?

You can search this numbers " 23.127460034623816,113.33224654197693 " in google map , then you can find our fmuser office .

FMUSER Guangzhou office is in Tianhe District which is the center of the Canton . Very near to the Canton Fair , guangzhou railway stationxiaobei road and dashatou , only need 10 minutes if take TAXI . Welcome friends around the world to visit and negotiate .

Contact: Sky Blue
Tel: 86-2-87597795       Fax: 86-2-87588285
Cellphone: 86-15915959450 
E-mail: sky@cantonmade.com
MSN: balalove2008@hotmail.com
Yahoo ID : balalove2008@yahoo.cn
Skype: sky198710021
Address: No.1502 Room HuiLan Building No.273 Huanpu Road Guangzhou China    Zip:510620


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    Last name : Li
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* If the packages below 0.5kg,we will be shipped via post airmail, it will take about 15-25days to your hand. If the package is about 1~3kg,we will   ship via EMS,it will take about 7~15days to your hand.If the package more than 3kg , we will send via DHL. It will take about 3~7days to your hand. All the packages are form China guangzhou.

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All of our item have 3 month Warranty .
Contact US--->>Return the item to us--->>Receive and send another replace .

Name: Liu xiaoxia
Address: 1502Fang  HuiLanGe  HuangPuDaDaoXi 273Hao TianHeQu  Guangzhou China.
Phone: 08615915959450

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