87.5M - 108MHz 50W Maximum Up To 70W Stereo RF FM Transmitter Amplifier with Fan Radio Station Module DC 12V 13.8V 10A H4-002

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SKU: 50W RF FM Transmitter Amplifier

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Description

87.5M - 108MHz 50W Maximum Up To 70W Stereo RF FM Transmitter Amplifier with Fan Radio Station Module DC 12V 13.8V 10A H4-002

Note: Long-term emission requires increased heat dissipation.

Parameters

1.Input Voltage: DC 12V-13.8V, the maximum input voltage shall not exceed 14V 
2.Input Current: Less than 10A 
3.sound signal: maximum input VPP is less than 1V
4.Output power:50W(-10%~+40%) 
5.Output impedance: 50Ω 
6.operating frequency: 87.5M-108MHz 
7.stepped frequency: 0.1MHz
8.distortion factor: 0.03%~0.1%
9.PCB size (L x W x H mm): 163×80×80 (excluding the ledge)
10.Transmission range:> 10KM ( in open field with high enough antenna)
11.Stereophonic separation degree: > 63db
12.Harmonic suppression: <-60dbc
13.Size:400g

 

Several announcements about the transmitter: 
1. Transmitting distance:
 
The transmitting distance is mainly determined by the height of transmitting antenna, antenna gain, transmitter power, actual transmitting environment and the sensitivity of receiver. If the distance is not too far in using the transmitter, one can significantly increase the transmitting distance by enhance the height of transmitting antenna.

2. Regarding the audio input: 

the volume input should not be too large, and saturation

distortion is likely to occur in the assembly. So when the audio distortion occurs, try to lower the volume input.

3,The percentage of output power is a non-linear relationship.

Therefore, the power percentage is only for the convenience of the user to adjust different power. The actual power is subject to the output test. The same voltage standing wave ratio is only a rough reference value and is not very accurate.

4,The transmitter antenna output must be connected to a standard 50 ohm transmitter-specific antenna with a center frequency that must match the transmit frequency.

The antenna must be 10 meters away from the transmitter.

Never use other non-professional antennas. Otherwise, the transmitter will not be responsible for burning it! Or it can be tested with a dummy load of not less than 100W 50 ohms.

The transmitter is protected against standing wave protection. The standing wave protection display display icon is shown in the figure below.

 

Appear on the map "Please Check ANT" flashes simultaneously.

He says that the antenna VSWR is too large, is protected.

Immediately remove power to check whether the antenna is connected and match.

Package:

1pcs 50W RF FM transmitter amplifier

H2a87f144e10b481bae61734a40dfa7bcB

 

Prototype output power test data sheet:

 

频率frequency

工作电压

Operating Voltage

工作电流

Working current

实测输出功率

Measured output power

1

88MHz

13.8V

8.8A

72W

2

90MHz

13.8V

8.4A

68W

3

92 MHz

13.8V

7.6A

62W

4

94 MHz

13.8V

6.8A

54W

5

96 MHz

13.8V

6.5A

52W

6

98 MHz

13.8V

6.3A

52W

7

100 MHz

13.8V

6.4A

52W

8

102 MHz

13.8V

6.8A

53W

9

104 MHz

13.8V

7.4A

56W

10

106 MHz

13.8V

7.7A

57W

11

108 MHz

13.8V

7.8A

54W

 

Note: The above test data is for reference only. The actual test power of each device is different due to the test temperature and the parameters such as test cable and power meter. Therefore, the actual test data will be biased.

 

H3a15585b32fe43c1b8340fc0616582b4BH45bf8ec1333a4b1d9398423da72d6b01HHa16644de1ca84747af1e436bd7f7fd56F

 

DSC_1139DSC_1143DSC_1146DSC_1145

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