mercoledì 6 aprile 2011
Roll-up 2m Jpole Antenna
Is the first antenna I've built. Very simple, cheap, and a true performer for 2m FM communication. I follow the project by WB3GCK (http://www.qsl.net/wb3gck/jpole.htm).
In the picture above you find also metric measures. I highly reccomend this antenna for beginners: is a wide band antenna and also if was a little mismatch with cuts, it mantains a very good SWR.
Where to find 300 ohm TV twinlead cheaply: if you need little quantities of twinlead, buy a receiving FM broadcast antenna, the cost is circa 1-2€ and there is enough twinlead to make a 2m jpole.