| Mastr II Dual Front End | |||
| Product Code 69 | |||
| Frequency Capability | Options | Frequency Range | Oscillator Stability |
| A | S | 13 | A |
| 1 Freq | Standard | 30-36 | +-0.0005% |
| D | P | 23 | B |
| 2 Freq | UHS | 36-42 | +-0.0002% |
| E | N | 33 | |
| 3 Freq | Noise Blanker | 42-50 | |
| F | 55 | ||
| 4 Freq | 138-155 | ||
| G | 66 | ||
| 5 Freq | 150.8-174 | ||
| H | 77 | ||
| 6 Freq | 406-420 | ||
| J | 88 | ||
| 7 Freq | 450-470 | ||
| 89 | |||
| 470-494 | |||
| 91 | |||
| 494-512 | |||