Image

Welcome to the ON4IQ ham radio website

Just some pages about my radio hobby and the activity on 50 MHz , the six meter band and my new activity band 432 MHz..

Image

 

 

The start

I gained access to 6m in early Februari 1990 and I have been hooked to the band since that day. Over the years many transceivers and antennea have been put up and tested and nowadays I run the FTdx5000.

Over the years I've increased my DXCC count steadily, in last years things have become much more difficult in the absence of F² propagation. DX is now mainly worked via E-skip and EME.

Image

 

4x 6M9KHW

This array has been in use for a number of years now. The 9el at 15m long (50ft boom) and stacking is 9.1 x 8.3m. It sis a big heavy systemen capable of 90° elevation.

Its hughe but worth the investment and work to keep it up. Over a single 9el it provides 10dB gain on low angle DX (9el on 2nd tower, same height, same boomlenght)

Over the years it has made a big difference on receiving.

Image

Design

I tried to go for every dB of gain even tenth of a dB, Cables in harnass are 1/2" cut to the millimeter for perfect phasing, using 7/16 din plugs all the way providing low loss and excellent mechanical stability.

Main feedline is a 1 5/8" coax run abt 60m long, from the antenne , down the tower and underground conduit to the house and shack. There is less than 1dB loss on TX or RX .