Shipboard radio transmitter medium and short waves Ersh-R
“Ersh-R” marine vessel transmitter LW, SW bands AM/CW modes. “Ersh-R” was used for telegraphy and radiotelephone Navy ships with each other and with the coastal radio stations.
Shipboard radio transmitter “Ersh-R” installed in ships of the fleet of the fishing industry in the 50s of the last century. The power of the transmitter in radiotelegraph mode is 100 watts, in radiotelephone mode 25 watts.
The medium wave transmitter has a smooth tuning range of 365-550 khz (822-545 m), within which there are seven fixed frequencies 410, 425, 454, 468, 480, 500 and 512 khz.
The short wave transmitter has a smooth tuning range of 1500-24000 khz (200-12.5 m), which is divided into four subrange: I from 1500 to 3000 kHz, II from 3000 to 6000 kHz, III from 6000 to 12000 kHz and IV from 12000 to 24000 kHz.