... how do you all write down callsigns?
I am not sure what your problem is. I mean ...
-one hand for the Yagi -one hand for the radio -one hand for the speaker-mic -one hand for the clipboard -one hand for the pencil -one hand for the tall glass of iced tea -one hand for your smartphone with its satellite tracking program running
(grin)
I will sometimes use a smartphone voice recorder app to record passes, for later review. In a shirt pocket, to free up my other six hands.
Additionally, I have built a little tray wide enough to accommodate my HT on the boom of my Yagi. Helps free another hand, as well as "counter-balancing" the front-heavy antenna. Photos at ...
http://web.me.com/clintbradford/k6lcs/Photos/Photos.html
... and ...
http://web.me.com/clintbradford/Work-Sat/My_Gear.html
Clint Bradford, K6LCS http://www.work-sat.com