Techtest Ltd. 12-602-3 Antenna Test Set

A portable, battery-operated diagnostic unit used to test aircraft antenna systems in situ.

Frequency ranges: Operates across four overlapping bands: 60-100MHz, 100-200MHz, 200-400MHz & 850-1250MHz.

Comes with various adaptors. 

Comes in a self-contained hard-case metal case with shoulder strap.