Jul 222015
 

The (four) tower project is going in the right direction now. There were some problems to solve and with the help off the tower builder it will be ok soon. I have now 3 of the 4 towers ready to be lifted in place. The fourth tower will be replaced by a new one. And I hope to receive this one very soon.
The towers are rotary but also there will be the possibility to turn the top antenna. The will be done next year. But I already mounted the mast for the top antenna and fixed it to the one off the tower legs. We are now in the process of building the guy wires. The upper part of the guy wires are from Phillystran and the lower part is from stainless steel wire. We are using grips to connect the Phillystran to the towers. For all goes according to plan then we will lift in each tower one yagi. I am going to use the yagis I have used in the versatowers and a the Optibeam and a two element for 40 meter. Next year we then will add mono band yagis and put the antennas in there final position. I have to build the mono banders and time is running out.

The four yagis are: C31XR Force 12 14 elements for 10 -15 and 20 meter.
Optibeam 7 elements for 10 – 15 and 20 meter.
SteppIR 4 elements for 10 -15 and 20 meter.
Force 12 2 elements 40m yagi.

The towers are isolated from the ground. The plan is to feed the towers for 160 meter.
The towers placed in a square. 40 meters apart. So if this is going to work then we can switch it as a four square.

May 032015
 

One of the GS35 amplfiers had a broken and unsave power supply. After some investigation we found out that one of the two transformers was broken.We first stripped the power supply and began from scratch  With help from Jan PA0VAJ I mounted a new transformer and made more changes.  After 2 days the new and reliable power supply is ready with 4200v.

 

 

 

May 032015
 

Spring is here and it is antenna time. Peter PA4O (Ex PA4PS) helped me with mounting a second 16 el M2 yagi in the middle versa tower. We now have 3 equal 2 meter systems for 144MHz.
A fourth is available and will be set up for the contest weekend only. This is a system with 3 clover leave antennas. This system can hear 360 degrees. The cable from the clover leave system is connected to the eme system so we can use the relays switch of the antenna. After the contest we only have to reconnect one cable and the eme system is back in business.

Before

Before

Ready to mount an extra yagi.

Ready to mount an extra yagi.

Ready

Ready

Apr 042015
 

I bought 80m of 1 1/4 inch (39mm) Celflex hardline coax. This will be used to feed the double ten switch in the field.

Apr 042015
 

The computer for the 6 meter table had a problem. It switched of and I could hardly start it up.
I found out that when I connected to the internet the computer shuts down. I mounted a second ethernet card and now it is up and running again.