Primarily active from mainland Colombia as HK4/DF3TJ, operator Christoph also has plans to make side-trips to San Andres (NA-033) and Providencia (NA-049). QRV from those islands as HK0/DF4TJ. Dates are not specific but he should be active late December going into January ’26. Modes: CW and SSB. QSL via ON5JC.