开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育

23m Project done, next OFC Dipole Project


oh6bi
 

My 23m wire test is done, it took 6 weekends at cottage.
( HI, I didnt do that all the time..)
I started with abt 40m length wire then abt 20m then abt 11m and 15m.
Finally 23m which I found best for my needs.
The exact length for my wire is 23,2 m, first goeing 3,5 m straight
up and then rest horisontal so that the end is abt 10m up.

It works 160 to 10m but not 18 MHz. Some narrow areas at 28 MHz not
working. "It Works" means that FT897 get tuned. Really working and
radiation is another point.. depens of many other things.
The ground is one 10 ft Copper rod and 50cm deep 20m long Copper loop.

As I have earlier told that I am using also IC706/AH3 system.
My opinnion is that AH3 is better unit than FC40. AH3 has bigger
coils but FC40 has memories, it depens what you need, if you like
more lower bands AH3 is better but if you like higher bands and you
are often changing FRG then FC40 is more handy...

OK now for that

Coming weekend is to start OCF Dipole project.
What is OCF Dipole? OCF means Off Center Feed !!
There are some wery intresting writings abt OCF and after reading
those I decided start OCF Project. Please check VK3APP writing:


option=com_content&task=view&id=14&Itemid=9

The plan is to put FC40 up instead feeder and balun.
Wire will be abt 40m long, a bit longer than VK3APP is using in his
article, to get it better working at 3,5 MHz(I like more CW than ssb).

I did one windom test at my cottage five years ago. It was IC706/AH3
connected to 8m long vertical line. That was connected to 42m long
horisontal part 1/3 from the end. As I member that system was quite
good but I have lost test records .. it worked 160 to 10m, one band
was not working I dont member what it was..

Best Regards es 73s de rami,oh6bi

Join [email protected] to automatically receive all group messages.