As far as we know this is the longest 23 cm antenna manufactured in

 series production. The antenna has 

22 λ in length and almost 20 dBD in gain, it's a high tech/high 

performance product. All mounting parts and 

nuts are made of stainless steel. Due to the 8x-reflector the antenna 

shows a very high front to back ratio 

(f/b). At 19.9 dBD gain the antenna has a gain of 22 dBi (over 

isotropic). The side lobe attenuation is 17 

dB. The entire performance of the antenna follows the physical laws 

and is optimized by CAE-design. The 

E- and H-plane 3-dB beamwidth are practically equal and facilitates 

therefore the stacking and combination of 

several identical yagis to form a high gain antenna array. The antenna 

covers the entire 23 cm band and 

does not display any de-tuning effects caused by rain or wind. The 

support strut is designed so that the 

antenna does not mechanically deform in the horizontal plane. 

Frequency 1240 - 1300MHz 

Gain ISO 22Db 

Gain dBd 19.9 

Power 400W (PEP) 

Front-to-back 27 

VSWR 1.2 (typical) 

Elements 67 

Connector N-socket (female) 

Stacking distance 751mm 

Boom length 5.1m 

Max Mast diameter 52mm 

Windload @ 120km/h 134N