Type : receiver
Frequency band: 1,5 - 12,5 MHz covered by 5 sub-ranges :
| Range | Frequency / MHz |
| 1 | 1,5 - 2,3 |
| 2 | 2,3 - 3,5 |
| 3 | 3,5 - 5,3 |
| 4 | 5,3 - 8,2 |
| 5 | 8,2 - 12,5 |
Modulation : AM, CW, SSB
Sensitivity : < 4 microV
Power source : own supply that can work from 220V / 50Hz or 12V battery
Construction : tubes, 13 pcs, types : 6F31 / 6Z31 / 14TA31
Documents collection (27 MB) : R-4 Labe documents
More photos : More R-4 Labe radio photos
