300-346 MHz Vertical antenna F1 ALT : Radial :

Electrical specifications

Model	F1 ALT
Operating frequency band, MHz	300-346
VSWR, not more than	1.5
Gain, dBi	2.15
Sector in vertical plane , -3dB	70°
Impedance, Ohm	50
Max. power input, W	200
Lightning protection	yes
Adjustable	no need

Mechanical specifications

Model	F1 ALT
Weight, no more, kg	2
Height/Length, mm	1200
Mast diametr, mm	50-110
Radome	fiberglass
Rated wind velocity, m/s	40
Wind loading area, m²	0.084
Load of side wind 40 m/s, H	100
Temperature range, °C	from -50 to +50
Connector	N-female

The comprehensive development of the range of 300 MHz has demanded the elaboration of antenna for fully-duplex operation. Antenna F1 ALT is a collinear construction with one wide-band irradiator and cutting barrels disposed in coaxial manner what allows creating an ideally circular radiation pattern at relatively high gain and broad bandwidth of the frequencies of operation. The antenna has a rigid fiberglass weather-proof radome and is replenished with reliable steel buckles CP-110. F1 ALT can be used in very hard weather conditions. This antenna is of interest for completing the communication systems of gas-and-oil-producing industry, in telemetric systems and in the river fleet equipment.

300-346 MHz Vertical antenna F1 ALT

Electrical specifications

Mechanical specifications

F1 ALT E-plane pattern

VSWR diagram, F1 ALT