Profesionální anténní sada s H/V polarizací Dipol 28/5-12/21-48 DVB-T/T2

Podrobný popis

Antenna suitable for digital DVB-T/T2 signal reception.
The professional antenna set with H/V polarization Dipol 28/5-12/21-48 DVB-T/T2 A2811 is designed to receive DVB-T/T2 digital terrestrial television in VHF band (174-230 MHz) and UHF band (470-694 MHz). Universal design of the antenna enables the user to freely change polarization of reception V/H for both, the VHF and UHF bands.
The antenna is distinguished by high gain, which allows to receive signals from distant TV transmitters. Professional antenna set A2811 has a built-in diplexer in the VHF antenna box, and a balun in the UHF antenna box. The antenna is pre-assembled. The assembly consists in tightening several screws and takes a few minutes. The main components of the antenna are made of aluminum, steel structural elements are galvanized. In the case of transmitters with lower power and/or further away from the place of reception, it may be necessary to use the Terra HS-013 R82010 or CA-215 R90461 amplifier having independent gain control, separately for VHF and UHF bands.
Key features:
  • the antenna receives DVB-T/T2 TV signals from one direction
    • in the VHF band (channels 5 - 12) in horizontal or vertical polarization
    • in the UHF band (channels 21 - 48) in horizontal or vertical polarization
  • built-in VHF/UHF diplexer
  • pre-assembled
  • made of aluminum
  • all directors and reflectors are made of aluminum tube
  • modern design - high gain with compact dimensions
  • manufactured in Poland
  • cardboard box
Product Dipol 28/5-12/21-60 tube
Code A2811
Gain [dBi]
Channels 5-12
Radiation ratio forward/reverse [dB] >13.5
Polarization H (V rotated by 90°)
Standing wave ratio 1.3-1.97
Gain [dBi]   
Channels 21-48
Radiation ratio forward/reverse [dB] 12-26
Polarization  H (V rotated 90°)  
Standing wave ratio 1.1 – 3
Number of elements 28
Impedance [Ohm] 75
Packaging cardboard box 
Weight [kg] 1.7 
Dimensions [mm]  1100x900x400
Max. mast diameter [mm] 55 


Typ antény TV DVB-T/T2
Výrobce DIPOL
Typ antény RTV UHF+VHF "combo"
General data
Počet prvků pcs. 28
Rozměry mm 1100 × 900 × 400
Weight kg
Balení type Karton
Technické specifikace
Impedance Ω 300
Balun Yes (75 ohm)
Operating band VHF+UHF
Frequency range MHz 174 – 230, 470 – 694
Kanály 5 – 12
Zisk max. dBi 4
Poměr poloměru přední a zadní části dB 12 – 26
Polarizace VHF H/V
Poměr stojatých vln 1.1 – 3
Kanály 21 – 48
Zisk max. dBi 9
Poměr poloměru přední a zadní části dB 12 – 26
Polarization H
Poměr stojatých vln 1.1 – 3
Built-in amplifier No