... or 33±3 circles / minuteSPECIFICATION OF KR-1338C / KR-1668CAntenna Radiator 1. Type: KR-1338C: 54cm hybrid array KR-1668C: 120cm hybrid array2. Length ... 1.5nm and 3nm ranges can be select in menu**KR-1668C3. Peak Output Power: 4KW nominal4. Mixer and local Oscillator ... , 0.5, 1, 1, 2, 2, 3, 4, 6, 12 **KR-1668C4. Echo Trail Interval: 15s, 30s, 1min, 3min, 6min, 15min ...