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Waht is the difference of Analog digital TV transmitter slot antenna breadboard antenna layer number gain db transmission distance

Published:2020/7/10 17:26:59 Visits:


Regarding TV transmitter antennas, we usually have two options to push to customers, one is slot antenna and the other is breadboard antenna.


1. The difference between these two antennas:
The slot antenna is cheap and easy to install.
The advantage of the breadboard antenna is that the bandwidth is wider than the slot antenna.

The gain comparison between the eight-slot antenna and the four-layer four-sided breadboard antenna:
Eight-slot antenna gain is 15dB
Four layers and four sides, the gain is 12dB

1KW digital TV transmitter, 8-slot antenna is recommended.

The relationship between the number of layers, gain and transmission distance of the slot antenna:
General understanding: The more the number of slot layers, the greater the antenna gain and the higher the signal strength, which can be understood as the farther the coverage distance.
The actual transmitter coverage distance is determined by three factors:
1). The output power of the transmitter.
2). The height of the antenna, and its own gain.
3). Local terrain environment.
Therefore, when the transmitter power is the same as the local terrain environment, the 8-slot antenna will have a greater gain than the four-layer and four-sided bread antenna, and the transmission distance is farther than it.

The increasing relationship between the number of layers of the slot antenna and the gain is:
4-slot antenna gain 12dB
8-slot antenna gain 15dB
16 slot antenna gain 18dB
Double the number of layers, the antenna gain increases by 3 dB.

Slot antenna breadboard antenna layer number gain db transmission distance





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Mod/Whatsapp/Wechat: +86 15800205544
Skype: Erin-huang2

Email: hch@cantonmade.com


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