R-870M

VHF Receiver

The receiver was designed to keep SWL on the air - ground. Used at a level lower tactical levels, mainly as an infantry and artillery. Also seen as an accessory carts for Command and Joint Staff.

The receiver fully transistorized replaced the earlier model R-870. Structurally and systemically very similar to radio R-809M2. He climbed the equipment of the Polish Army in the mid 70s.

TECHNICAL DATA

Frequency range 100 - 149,975 MHz
Modulation amplitude modulation (AM)
Frequency change step tuning at 25 kHz
Work without seeking and tuning ensured by quartz frequency synthesis system
Intermediate frequency 15,8 - 15,875 MHz (variable) and 1,6 MHz
Sensitivity no worse than 6 μV
Power network 127 or 220V / 50Hz; of the 110 V / 400 Hz; with the included Ni - Cd 12 V / 20 Ah or external power supply
Power consumption 0,5 A from 12V battery
Weight approx. 6 kg
Temperature range -30 to +50 °C
Staff one soldier
Antennas band to work on the move; disc-cone on a folding mast to work at standstill