Saturday, July 14, 2012

ajax with jquery in rails

So I'm going back through the updated rails books in an effort to see what all has changed since I last poked at it (as it turns, quite a lot).  One of the big changes was the removal of RJS (rails javascript) and the move to jQuery.  Unfortunately, the new jQuery interface doesn't seem to be referenced in the doco I've got nor was it easy to get a straight answer from googling, checking the js console, or even good old alert() debugging.

Friday, July 6, 2012

2m sleeved dipole

A'ight.  I ran across some articles about off-center fed, sleeved dipoles for 2m and 70cm use.  They're cheap and fairly simple to make, which is right up my alley.  I was going to mess around with using some copper tubing, but this sucker is working well enough I don't think I'm going to bother with the copper (or I'll save it for another project).  Total price for this thing for me was around $12.

The original articles I referenced were KV5R's OCF Sleeve Dipole and W7LPN's 2M/440 Dual Band Sleeved Dipole Mod.  I ended up keeping the idea of the RF choke close to the bottom element, but went back to simply using aluminum tape on the outside of a PVC pipe.  Instructions after the jump, but here's a pic of the antenna in action: