experimenting with DRM before the stations began operations

ROJY Experimental Radio

Frequencies: 4.965kHz (main), 3.950kHz (backup), 19.8khz (VLF channel)

Status: Active(?)

Mode: H3E (SSB full-carrier), J3E (SSB suppressed carrier), A3E (AM), CW

Digital Mode: DRM (10 kHz BW Opus codec), APT, SSTV, (etc.)

Location: Bulgaria

Rig: Modified-Clean lab exciter, DIY-Overdriven export AM/SSB, (etc.)

TX power: 0.01kW - 50kW

Antenna: (4965 kHz) Full-wave Loop / (3950 kHz) Yagi 3-element                 (oriented 300–350 NW AZ towards Hungary)

VLF antenna: (19.8 kHz) Vertical

About the station

ROJY Experimental Radio is an experimental radio station active since June 2026. This station broadcasts easy-listening music (nah), as well as various experimental programs, including our number stations...