This is the EAntenna EA270ZB13 at W4DVE, Dave’s QTH in Vancouver, WA, USA.

Dave told us:

“I own 2 of these dual band yagis and LOVE them. One is at my house and the other I use for portable contesting”

More info about this antennas at: http://v22018064517268618.hotsrv.de/?page_id=1523