| Frequency Range | 136 - 174 MHz | 400 - 520 MHz | 
| Max. Channels Per Radio | Up to 1000 CH with Option | 
| Number of Channels | 260 (64 for no LCD models) | 
| Number of Zones | 128 (4 for no LCD models) | 
Channel Spacing --Analog --Digital - NXDN --Digital - DMR |  12.5/15/20/25*/30* kHz 6.25/12.5 kHz 12.5 kHz | 
| Power Supply | 7.5 V DC °20% | 
Battery Life: 5-5-90 (FDMA / TDMA) --KNB-55L (1,480 mAh) --KNB-56N (1,400 mAh) --KNB-57L (2,000 mAh)" |  Approx. 8 hours Approx. 8 hours Approx. 11 hours |  Approx. 9.5 hours Approx. 9.0 hours Approx. 13.5 hours | 
| Operating Temperature | -22°F to +140°F (-30°C to +60°C) | 
| Frequency Stability | ±2.0 ppm | 
Dimensions : Radio Full Keypad Model --KNB-55L (1,480 mAh) --KNB-56N (1,400 mAh) --KNB-57L (2,000 mAh) | (W x H x D) Projections Not Included 2.20 x 4.71 x 1.43 in (56 x 119.6 x 36.4 mm) 2.20 x 4.71 x 1.43 in (56 x 119.6 x 36.4 mm) 2.20 x 4.71 x 1.68 in (56 x 119.6 x 42.7 mm) 2.20 x 4.71 x 1.53 in (56 x 119.6 x 39 mm) | 
Weight Radio Full Keypad Model --KNB-55L (1,480 mAh) --KNB-56N (1,400 mAh) --KNB-57L (2,000 mAh) | 7.8 oz (220 g) 11.1 oz (315 g) 14.5 oz (410 g) 12.0 oz (340 g) | 
| RF Power Output (High / Mid / Low) | 5 W / 4 W / 1 W | 
| Spurious Emission | -70 dB | 
FM Hum & Noise --Analog @ 12.5 kHz --Analog @ 25kHz |  40 dB 45 dB | 
| Audio Distortion | 3% | 
| Digital Protocol | ETSI TS 102 361-1, -2, -3 | 
| Emission Designator | 16K0F3E*, 11K0F3E, 8K30F1E, 8K30F1D, 8K30F7W, 7K60FXD, 7K60FXE, 4K00F1E, 4K00F1D, 4K00F7W, 4K00F2D |