What Use Is An F-call?

What use is an F-call? Real Hams have an RF burn scar. That's a signature from one of my Amateur friends. To that I can now add from personal experience, "or a drill hole." It all began innocently enough. I'm still looking for that elusive indoor antenna, something that will at least get me on air while I'm at home, something that doesn't spark the ire of my non-amateur neighbours, something that doesn't cost the earth and preferably something that will be portable enough to move around, pack up and bring to a field day when that opportunity arises. So, in my grand plan I came on the notion of using a $5 hula hoop to make a hula hoop loop. Suffice to say that I'm not the first amateur to try this, but I'm determined to have a go. I'm going to wind a hula hoop with helical windings, all the way around, and attach the contraption to my SG237 Antenna Coupler. Something else I learnt, my SGC Smartuner really is an antenna coupler. It becomes part of the antenna, which is why it needs to live close