A classic for the three most important shortwave bands!
HyGain TH-3MK4 has three elements and offers good performance while requiring only little space. The boom has a length of only 430 cm, the turning radius of only 467 cm. With these small dimensions the beam also adapts to a terraced house where the neighbor's space must not be touched. The relatively low weight and the small wind surface allow the use of a small rotor. With the small packing format of 135 x 20 x 20 cm this antenna is suitable for transport during shipping. All mounting hardware is made of stainless steel.
The average gain is approx. 8 dBi, the front-to-back ratio all impoartant (important for null out qrm) has a value of 25 dB. The maximum transmission power is 1500 W. The coaxial cable is connected directly to the radiator. An optional balun can be used if desired. The radius elements can be set to three different positions, adjusting the tuning at the beginning, in the middle or at the upper end of the band. The bandwidth that can be used with SWR less than or equal to 2: 1 is approx. From 250 to 400 kHz, depending on the band.
|I earn||5.8 dBD (8.dBi)|
|Front / back ratio||max. 25 dB|
|Mass power||1500 W PEP|
|Boom length||430 cm|
|Diameter Boom||51 mm|
|Max. Length of elements||836 cm|
|Radius max. of rotation||467 cm|
|Diameter Auction max.||64 mm|
|Weight (transport), Weight (transporte)||18 kg|
|Wind surface||0.4 m 2|