Hi all,
I've just converted my dish (2m) to a Short Backfire antenna on 70cm.
(because I thought it wouldn't be too hard, two days later...)
(Matching blues, definitely well below 50 ohms at the dipole feed)
(I scrapped the loli-pop feed in coax and went for a wide dipole only
to convert it to an unequal folded dipole)
Bandwidth about 1%, seems all in the feed.
Bandwidth fixed as per "Improved SBFA" in doc SBFA_GBT_187.pdf a 1998 Radio Astronomy article.
I just added the 10.78 inch front disk. I now have well over 10MHz.
Pixture on my website
http://www.unixservice.com.au/hamradio/antenna/
So, does anybody do Circular on 70cm?
=== Answer, no ===
Circular,. HB9Q has Circular so as not to "miss" anybody. He asked for either H or V.
I've tried EME on five moon passes thus far. Nothing, absolutely nothing heard and nobody has heard me either.
Back to the Drawing Board.
2C39
Alan VK2ZIW