143-178 MHz Directional antennas Y5 VHF (148,L,M,H) : Radial :

Electrical specifications

Model	Y5-148	Y5 VHF(L)	Y5 VHF(M)	Y5 VHF(H)
Operating frequency band, MHz	143-156	148-157	153-168	161-178
VSWR, not more than	1.5
Gain OFFSET, dBi	10.15
Sector , -3dB
in vertical plane	55°
in horizontal plane	74°
Impedance, Ohm	50
Max. power input, W	200

Mechanical specifications

Model	Y5-148	Y5 VHF(L)	Y5 VHF(M)	Y5 VHF(H)
Weight, kg	3.7	3.44	3.5	3.59
Size, mm	1680x950x60
Construction material	Aluminium alloy
Mast diametr, mm	38-65
Rated wind velocity, m/s	45
Wind loading area, m²	0.12		0.13	0.12
Load of side wind 45 m/s, H	140		145	140
Rated wind velocity with 0.5" icing, m/s	28
Temperature range, °C	from -50 to +50
Connector	N-female
Size of box, mm	1800x120x120

Antenna Y5 VHF is five-component Yagi antenna. Due to folded dipole usage in combination with symmetric power supply, antenna has comparatively wide operating frequency band. Three different models will provide coverage for every VHF subrange: model "L" for railroad transport, model "M" for paging, model "H" for trunking communication. Antenna is produced in collapsible version for the ease of transportation.

VSWR diagram,Y5 VHF(L, H)	VSWR diagram,Y5-148, Y5 VHF(M)
Y5 VHF E-plane pattern	Y5 VHF H-plane pattern

143-178 MHz Directional antennas Y5 VHF (148,L,M,H)

Electrical specifications

Mechanical specifications

VSWR diagram,Y5 VHF(L, H)

VSWR diagram,Y5-148, Y5 VHF(M)

Y5 VHF E-plane pattern

Y5 VHF H-plane pattern