Check the listing for details. Topcon PN-A5 Pin Based GNSS Full Wave Base Station Antenna. Condition: Used. Listed at 3500.00 USD. Nearly new condition, also selling a new one, see other listings. The PN-A5 antenna combines the Topcon TA-5 full spectrum GNSS antenna element with an innovative convex impedance ground plane. The TA-5 antenna element utilizes an array of vertical dipoles to provide highly sensitive and stable Full Wave signal tracking for all existing and planned GNSS signals. Topcon’s new convex impedance ground plane provides improved multipath mitigation while providing minimum signal loss for satellites tracked to the horizon. Features: High-end Geodetic AntennaTopcon TA-5 vertical convex dipole antenna element for full spectrum GNSS signal trackingUnique semi-hemispherical convex impedance groundplaneEnvironmentally robust and sealedMinimized phase center offset variations in vertical within GNSS frequency bandImproved tracking for low elevation satellites for signal tracking from the local horizon to zenith