Tower DM9EE
Tower DM9EE


DM9EE Tower


Installation for the new big tower in 2014 - a diary

see some pictures and details from the installation of my new antenna tower.

Dantronik 45m total, only 20m used, plus rotator pole

Pick up of the 6 tower elements from DJ7WW in Auetal

getting the tower in Dec. 2006 - it took me dammned 8 years to install the tower...."only" over a year to get the permission.....

tower tunnel :-)

22. Sept 2014 - old BP60 tower on the left, new basement on the right

torque - Drehmomenttabelle für HV-Schrauben

treatment for the tower bolts

OKS 220 MoS2-Paste Rapid use this to treat the tower bolts - because of high torque

Digging the basement

on Monday 22.9.2014 I started with digging the hole for the foundation.
It took 8 hours.    4m x 4m x 2,10m depth.

foundation part / flange part

ELF delivered the galvanized flange parts

today was an exciting day!  the flange parts came back from galvanizing and Andre brought it from ELF to my home.
It looked so easy how he lowered the 300kg part into the pit. Roloff-Bau (concrete work) and ELF (welding) did a perfect job. Everything is levelled.. ......perfect 10 for both !

10. Oct. 2014 - 27 cubic metres = roughly 50 tons weight

today 27cubic metres of special quick mix concrete were poured into the pit.

tower instalallation

tower installation DM9EE
tower installation DM9EE

the tower is up !

Tower Installation by Drone

Tower installation by Tower Cam

Tower installation by ground crew camera :-)

HV-Schrauben / Bolts

Kopfstückplatte Dicke der

messer der

 der HV-Schrauben
Kopfstückplatte 1,0 cm 80 cm   2,6cm
3,5 cm
vom oberen Segment - obere 2,5 cm 80 cm 3 2,6cm  
vom oberen Segment - untere 3,0 cm 95 cm 3 3,1cm
vom mittleren Segment - obere 3,0 cm 95 cm 3 3,1cm  
vom mittleren Segment - untere 3,0 cm 110 cm 4 3,3cm
vom unteren Segment - obere 3,0 cm 110 cm 4 3,3cm  
vom unteren Segment - untere 3,5 cm 125 cm 4 3,3cm
vom Fundamentteil 3,5 cm 125 cm 4 3,3 cm  

Rotor Software by YO3DMU

click here for his website YO3DMU

Rotor Cage

Rotor Cage
Rotor Cage

both steel plates are 1cm thick
side tubes are OD  80mm x 80mm x 8mm wallthickness
height is 2m

weight ? dunno....but I can't move it alone....
upper bearing: 110mm  wide reduces with POM 
many layers POM material 5mm = 5cm height as bearing
turn tube 88,9mm with 7mm wallthickness

Rotor: Prosistel PST-71


Turn pipe / antenna tube

6m long
9cm OD
9mm Wall
steps for klimbing
Flanges for Yagi and guy wires / double guy wires (boom)


antenna lift up !! 22.12.2014

we made it today !!!  3c   72km/h wind gusts, rain, hail,.-......   excellent WX !   trainingcamp for Bouvet !

foundation plan

cost for tower

tower - used 1000 €    
transport Schnitzel and beer    
storage for 8 years more Schnitzel and beer    
application by architect 600€    
static calculation 1200 €    
cost for application -> government 600 €    
confirming the static calculation 815 €    
attorney for discussions with government 500 €    
new galvanizing of the tower 3000 €    
transport to and from galvanizing 320 €    
digging and evacuation of the dirt 1900 €


steel construction in concrete / flange 1500 €  
steel, reinforcement and 27cbm concrete 5700 €    
lightning protection 1000    
HV bolts 250 €    
party for new tower   not to mention  
rotor cage 1000 €    
calvanizing rotor cage 425 €    

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