The radio station RBM-1 is a short-wave radio transmitter used at the end of World War II, the regiment-division level and also in the postwar period until the early 60s.
You can admire it for many films depicting the war period. With such a radio broadcast reports, among others, the famous J-23 and we saw it in the TV series "Czterej Pancerni i pies". After the withdrawal of the army a number of its copies went to institutions.
| Frequency range | 1,5 - 5 MHz (scale applied in "plots contractual" one "property damages" equivalent to 25 kHz) is divided into two sub-ranges |
| Tuning | separated tuning by the frequency of the transmitter and receiver |
| Modulation | telegraphy (CW), amplitude modulation (AM) |
| Calibrator | built-in crystal calibrator |
| Output power | 1 W |
| Intermediate frequency | 460 kHz |
| Control | local and remote via the telephone line and the field telephone |
| Power | with Ni-Cd (circuit incandescence), and 3 dry battery anode BAS-80; in later versions of dry cell batteries replaced the converter vibrators CAP-6 |
| Sensitivity | approx. 10 µV for AM and 5 µV for CW |
| Reach | a few km for antenna "rod" to several hundred km for dipole antennas, propagation conditions are favorable |
