After creation of SASER SAS24P3L VLF radio station, I received a number of signals. Today at 15:35 GMT+3 Moscow time at the 29.5 kHz frequency using the 13 modulator I received a signal and then sent it back to MDL12 Max for Live VLF modem. After I stopped the transport in Ableton Live 9, I received a feedback loop with Q code: QRG.

The recording reads a Morse code for RG, Q letter is not present in a repeating loop. The received feedback signal according to 1912 International Radiotelegraph Convention Regulations means: “What line do you belong to?”

About my equipment: SASER SAS24P3L software uses modulation frequency to center frequency relationship called multiplier, which is responsible for signals receiving frequency in VLF band starting from 17 kHz to 44.1 kHz. This instrument takes in account Doppler Effect, which happens because of delay time changes inside waveguide. Related to this, frequency of the signal is changed. 320 channels available using 16 types of 4096-node continuous-phase frequency-shift keying modulation without external antenna need. Partial components of the signal may be muted or signal components may be muted fully using wave shaping distortion modules.