SM2YER Goran's Homepage

- 3-Band / 3-Element HF-Beam Hy-Gain TH3 -

- Documentation -

User Manual (in .pfd format)

This is an 'trapped' tree element tree band yagi antenna, in the summer of 2004 i done a total make over on one 'Hy-Gain TH-3' for my frend Yngve SM2YIP. Here is some images of the process.

- 'The TH-3 JOB' -

Cleaning the traps

Assembling

Putting it up

FACTORY SPECIFICATIONS
========================================
Electrical data
Frequency coverage......20/15/10meter amateur bands
Gain(Ave.)Output power..5.8dBd/8.0dBi
Max power handling......1500W PEP 
VSWR at resonance.......1,5:1
Input Impedance.........50 ohm
Matching System.........Beta (DC Ground)
Mecanical data
Boom Lenght.............4,3 m
Boom Diameter...........51 mm
Longest element.........8,36 m
Turning Radius..........4,67 m
Accepts Mast............48 to 64 mm
Net Weight..............16 Kg
Max Wind Survival.......153 kmph
Wind Surface Area.......0,4 sq. m (m2)
Wind Load @ 80 MPH......53,6 kg

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