The JK403 is a great performer antenna on a 30ft boom for 40m. This antenna has excellent F/R and gain while maintaining a decent SWR bandwidth. The antenna is made with our high quality, heavy duty materials and hardware. The element construction does not need trussing unless you live in extreme snow/ice conditions.

We can also provide you with custom settings to suit your operating preference such as peaking your gain and F/B in the CW portion or the Phone portion of the band.