As part of the 26th International Culture and Art Festival organized by the Municipality of Büyükçekmece, the special callsign TC1BC was activated to promote cultural unity and peace through amateur radio.
This event was officially organized by TAMAD – Tüm Telsiz Amatörleri Derneği (All Amateur Radio Operators Association). The operation was carried out by TAMAD members, transmitting the festival’s message of peace and friendship across the amateur radio bands worldwide.

Date: July 25 – August 3, 2025
Location: Büyükçekmece, Istanbul – Türkiye (Multi-operator, various locations)
Modes: SSB, CW, FM, FT8, FT4 Bands: HF, VHF, UHF QSL Info: QSL cards will be sent via direct mail or eQSL using a specially designed card.