Posted inDX News TI7W Costa Rica. From DXNews.com Posted by By admin January 13, 2025 N4YDU will be active as TI7W from Costa Rica in ARRL DX CW Contest, 15 – 16 February 2025. admin Extra Class Amateur Radio Operator View All Posts Post navigation Previous Post Fram2, SpaceX Plan SSTV Event from Polar OrbitNext PostTZ1CE Mali. From DXNews.com