Very rare variety of radio stations R-109d. Differs from it only shifted slightly "down" frequency range, which allowed to establish communication with "tank" radio stations R-113 throughout their range.
| Frequency range | 20 - 26 MHz |
| Modulation | frequency modulation (FM) |
| Frequency change | fluent tuning, plot scale at 50 kHz |
| Work | without seeking and tuning ensured by built-in crystal calibrator, high stability heterodyne and automatic tuning of a receiver to the correspondent frequency |
| Intermediate frequency | 1312,5 kHz |
| Output power | 1 W |
| Frequency deviation | 8 kHz |
| Sensitivity | no worse than 1,5 μV |
| Control | local and remote via the telephone line and the field telephone |
| Power | internal battery 2 pcs. NiCd 2.4 V / 24 Ah |
| Work time | approx. 12 hours with a time of receipt to the transmission 3:1 (on one set of batteries) |
| Weight | approx. 21 kg (working set) |
| Immersion | withstands immersion in water at 0.5 m for 10 minutes (both lids are closed) |
