Welcome to the home page of Ham Radio Station OP4K    

         

Primary call ON4JZ
Other callsigns used OO4JZ - OQ4JZ - OR4JZ - OS4JZ - OT4JZ and OT5A (contest team Lier M/M) 

Ex callsigns ON1BZJ - ON4AJZ


                             

                        


 

Many pictures here below (click to enlarge), scroll down for the different stages

 OB17-4 Installed Sept 18, 2004

 

                                                                               



The delivery of the new aluminum tower
12m / 40 ft tower




Unloaded and ready to go up
 




The crane (a 50 ton) gets ready

 


And the tower is raised to its destination




DF2BO, Tom and ON7UN, Eddy waiting
 



And here comes the OB17-4




Securing the boom to mast plate

 


This is what turns my antennas




One of the six anchor points

 


A closer look at the Kevlar guy wire

I want to thank everybody (ON4ALT, Tony - Tony's father -
ON6MR, Robert - ON7UN, Eddy, ON4AMI (OO7P), Pat -
ON4JW (OR4U), Jean - ON5UM (OP5T), Jim - ON4CIW (ON4DHL), Gilbert - ON1DTG (ON4LV), Werner (SK)- DF2BO, Tom and his wife Diana) who helped with assembling and installing this antenna and the new tower

 

Transforming the OB17-4 into an OB18-6 and assembling the OB2-30 Aug 18, 2007





ON6MR, Robert detaching the boom to mast
 



The crane in action




The OB17-4 detached
 



Ready to be transformed




Tower with only VHF / UHF antenna
 



The aluminum top tube goes out




NEVER use an aluminum top tube (too soft)
 



The clamp carvings almost cut the tube in 2




This is the OB18-6 after the transformation
 



Another picture of this new antenna




ON5UM (OP5T), Jim assembling the OB2-30
 



Assembled without the boom to mast plate




ON5OT, Marc special clamps
 



These are full saddles and not zigzags

I want to thank ON4ALT, Tony - Tony's father - ON4LV, Werner (SK)  ON5UM, Jim - ON6MR, Robert who helped with this huge antenna project.
The special clamps have been  manufactured by ON6IQ, Clem and are designed by ON5OT, Marc

OB18-6 Installing Sep 01, 2007





The crane (a 70 ton) gets ready
 



View from the roof




The OB2-30 and vertical for 2m/70cm
 



Flying in the air




Slowly getting into its place
 




Arrived at the destination




And lift up of the OB18-6
 



The antenna swinging



Antenna ready to be fixed to the top tube
 



ON4AMI (OO7P), Pat waiving




ON6MR, Robert fixing the boom truss
 



ON6MR, Robert left and ON4AMI (OO7P), Pat right




Both antenna's aligned
 



ON6MR, Robert adding the torsion bar




And here is the final result
 



The 70 ton crane finished his job...well done


I want to thank everybody (ON4ALT, Tony - Tony's father -
ON4AMI (OO7P), Pat  ON4LV, Werner (SK) - ON5UM (OP5T), Jim - ON6MR, Robert - ON7UN, Eddy who helped finalizing my antenna project



 

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Ziegelshiffer Joe OP4K 2017 - Last update January 01, 2017