Product technical data
Product name:VHF four-dipole television transmission antenna
Equipment model:ZRVHF-4O
Equipment origin:Jiangsu
Manufacturer:Confucianism Nanjing Radio and Television Equipment Co., Ltd
One.
Product function introduction
The four-dipole plate antenna is a wide-band television transmission antenna, which can work in the entire TV H l band, namely, 6~12 TV channels (frequency 167~225MHz). It has high power gain, convenient impedance adjustment and good standing wave ratio. The structure is relatively simple and convenient for processing and transportation. It can be conveniently installed on the side of various TV towers. By selecting an appropriate number of antenna dipole and its feeding method, it is convenient to Change the directionality of the transmitting antenna in the horizontal plane and vertical to meet the different service requirements of each radio station.
All indicators of the antenna system comply with the standards of GY/T 5088-2013 Technical Indicators and Measurement Methods for Transmission Antenna Feeder System of TV and FM Broadcasting.
Two.
Technical parameters of antenna system
1.
Model: VHF four-dipole TV transmission antenna
2.
Frequency range: 6CH-12CH
3.Polarization mode: horizontal polarization/vertical polarization
4.
Gain (dB): G ≥ 8-14.9
5.
Standing wave ratio: S ≤ 1.10
6.
Input interface (KF): IF45-50/L27-50/L29-50
7.
Impedance: 50 Ω
8.
Weight: 42 (kg)
9.
Wind resistance (KM/H): 270
10.
Windshield area: 0.6 square meter
11.Waterproof sealing material: 703 silicone+self-soluble waterproof mastic+PVC adhesive
12.
Fabrication materials
The vibrator is made of stainless steel with a wall thickness of not less than 2.5mm, the inner conductor is silver-plated, and the connector is silver-plated inside and nickel plated outside. The reflecting plate is made of stainless steel
13.
Sealing treatment
The whole set of antenna is subject to waterproof and anti-rust treatment. All interface parts are sealed with mastic, sealing ring, sealing silica gel, thermoplastic pipe, etc., and professional technicians are sent to the tower for sealing treatment.
(1)
Place vulcanized sealing ring in antenna connector
(2)
Inject waterproof thread sealant into antenna connector;
(3)
External waterproof self-adhesive tape;
(4)
Finally, the external heat shrinkable sleeve is used for heat shrinkage.
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