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RFU25 - 25W FM RF Power Amplifier Pallet 87.5MHz-108MHz Input 1.2W output 25W

Total:166 USD

Item:156 USD   Shipping:10 USD

25W FM RF Power Amplifier Pallet 87.5MHz-108MHz Input 1.2W output 25W

25 W – FM Amplifier Pallet
Designed for FM radio transmitters, Drivers
this amplifier incorporates microstrip
technology to enhance ruggedness
and reliability
optional regulator on board
for output Power adjust


87.5 ÷ 108 MHz 1.2W input
• 28 Volts
• Input/Output 50 Ω
• Pout : 25W min 32W max
• Gain : 13 dB typ 14 db max
• Class A B
Low pass filter on board
• Devices: MRF314 or equivalent

 

Dimension (L x W x H): 150 x 50 x 15mm [6" x 2" x 0.6"] This picture is a mere example, it does not bind the  provided product

Vdc: Drain Voltage Supply:30V
Idc: Supply Current:3A
swr: Load Mismatch (all phase angles, Tc=40°C, Id=4A):10:1SWR
Pin: Input RF Power: 3W
Tstg: Storage Temperature Range  -40 to +80  °C
Tc: Operating Temperature: +70°C

ELECTRICAL SPECIFICATIONS (Base Plate T = 45 °C, 50Ω loaded, Vcc = 28 V @ 1.9A)

Operating Frequency Range: 86-109MHz
Fundamental Output Power: 25-35 W
Input Power: 1=1.2W
Power Gain (50W output): 13-14 db
Collector  Efficiency (Load 50Ω):60-70 %
Input  SWR: 1.5:1   2:1 SWR
F2 Second Harmonic: -60 ~ -70  dbc
F3 Third Harmonic: -55 ~ -65 dbc

ELECTRICAL CONNECTIONS
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.

 

 


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 the power transistor.
 
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) 

 

 

Total:166 USD

Item:156 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 sky@fmuser.org
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

FMUSER.ORG is a system integration company focusing on RF wireless transmission / studio video audio equipment / streaming and data processing .We are providing everything from advice and consultancy through rack integration to installation, commissioning and training.
 
We offer FM Transmitter, Analog TV Transmitter, Digital TV transmitter, VHF UHF Transmitter, Antennas, Coaxial Cable Connectors, STL, On Air Processing, Broadcast Products for the Studio, RF Signal Monitoring, RDS Encoders, Audio Processors and Remote Site Control Units, IPTV Products, Video / Audio Encoder / Decoder, designed to meet the needs of both large international broadcast networks and small private stations alike.
 
Our solution has FM Radio Station / Analog TV Station / Digital TV Station / Audio Video Studio Equipment / Studio Transmitter Link / Transmitter Telemetry System / Hotel TV System / IPTV Live Broadcasting / Streaming Live Broadcast / Video Conference / CATV Broadcasting system.
 
We are using advanced technology products for all the systems, because we know the high reliability and high performance are so important for the system and solution . At the same time we also have to make sure our products system with a very reasonable price.
 
We have customers of public and commercial broadcasters, telecom operators and regulation authorities , and we also offer solution and products to many hundreds of smaller, local and community broadcasters .
 
FMUSER.ORG has been exporting more than 13 years and have clients all over the world. With 13 years experience in this field ,we have a professional team to solve customer's all kinds of problems. We dedicated in supplying the extremely reasonable pricing of professional products & services.
Contact email : sky@fmuser.org

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 station, xiaobei road and dashatou , only need 10 minutes if take TAXI . Welcome friends around the world to visit and negotiate .

Contact: Sky Blue
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E-mail: sky@fmuser.org
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For Warranty .
Contact US--->>Return the item to us--->>Receive and send another replace .

Name: Liu xiaoxia
Address: 305Fang HuiLanGe HuangPuDaDaoXi 273Hao TianHeQu Guangzhou China.
ZIP:510620
Phone: +8615915959450

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