Antena Yagi 4 Elements 27Mhz Antenna

Deskripsi Antena Yagi 4 Elements 27Mhz Antenna
The HFY4-27 antenna is the Yagi 4 Element designed, it gaves wide frequency range over 27 Mhz. SWR is below 1.5:1 , it could connect directlly to the Transmitter without any Tuner. And when it find tune, easilly to fine SWR 1,1-1.2 Typical , Please look at the Foto of our Analyzer.

This antenna design is to be use from 27 Mhz It capture any weak signals in receive mode and much better performance than any vertical Short and Trap Dipole antenna. The antenna possesses resistance to any kind of weathers and capacity to accommodate output power RF load 1500 watt P.E.P , appropriate for multi channeled transceiver radio by using only one coaxial cable.
Antenna is made of material Alumunium and protected by plastic material with roll and matching circuit or balancing network.
HFY4-27 Antenna may serve as Directional all-way transmitting characteristics in partial declivity with side en adjacent to ground, approximately 3 - 15 meters above ground.


Specifications

Frequency = 27 MHz
BandWidth = 26.8 Mhz -27,8Mhz Tuneable
Band = 11 meters
Gain = 10 dBd
Front / back = 22 dB
Front / side = 35 dB
Maximum handling power = 1500 W P.e.P.
Connector = SO-239
Balun = Gamma Match
Length boom = 3,44 meters
Longest element = 5,50 meters

Performance Verification
The impedance match of the antenna should be verified prior to using the antenna with a transmitter, or if there is doubt about performance.
install a directional wattmeter between the antenna and the transceiver. Key the transmitter with a steady carrier and adjust the forward output power for approximately 20 watts.
Switch the watter meter to read reflected power, which should be in the range of 1 to 2 watts for a proper impedance match.
If reflected power measures in excess of 5 watts, the problem should be corrected before attempting to use the antenna.