My antennas today :   - home made 2 el YAGI 3,8 Mhz (total element length is about 24 m,shortened with home made coils)

                                  - home made 4 square 3,5 Mhz (wire elements with toploading 13 m high,feedpoints 2 m from ground)

                                  - home made 5 element YAGI 18 Mhz (interlaced 80 m)

                                  - shunt fed tower 1,8 Mhz

                                  - stack of two 5 elements OP DES 14 Mhz YAGIS

                                  - Rx : 200 m long beverage NO and active Rx loop ALA 1530 LNP

 

All antenna work is just a one man (me) made job.....

 

 

Radiation diagram for my 2 el 80 m yagi.

Maximun gain is 6,6 dbi (free space) and F/B is 25 db.

Very high Q loading coils home made are used in order to shorten elements to a practical length of about 24 m.

High Q coils are needed to keep losses at minimum. Coil design also took into account the lack of any parasitic resonance on the

HF spectrum.        

                                                                                                            Home made high Q coils OT4A

                                             

                       

 

     Radiation diagram of my stack of the two 5 el yagi's OP -DES 20 m 13 m apart bottom one 13 m high.

                                             Maximun gain is 16,64 dbi and F/B 26db.

 

                   

Below the picture of my old antenna system, replaced since july 2017.....home made 4 element 40 m Yagi with stack of two KT34XA's....they were up in the air for more than 15 years and i certainly made lots of qso's with them....  

                                                                 

 

           

         

                                                       

 

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