Image

Welcome to the ON4IQ ham radio website

Just some pages about my radio hobby and the activity on the VHF UHF bands from 50 MHz to 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 TS890s.

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 on 50MHz

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 is a big heavy systemen capable of 90° elevation.

Its hughe but worth the investment and work to keep it up. Over a single 9 element 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 .