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"Amateur Ham Radio Operator T-Shirt - Full Duplex Tech for RF Engineers & Radio Hobbyists" pizza - Non-chlorine: bleach as neededShowcase your technical radio expertise with this "Full Duplex" ham radio t shirt! Designed for licensed operators, electronics engineers, and communication specialists who appreciate advanced radio technology. Whether you're experimenting with transceivers or love the science behind simultaneous transmission, this shirt celebrates true radio innovation. Product features Shoulder tape for stability and comfort. Seamless construction for a sleek look.