RWM

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RWM
RWM.png
Frequencies 4.996 MHz,14.996 MHz,9.996 MHz
Frequency Range 4.996 MHz - 14.996 MHz
Mode USB
Modulation OOK
ACF n/a , 1000 ms , 100 ms.
Bandwidth 5 Hz
Location Russia
Short Description RWM is a Russian shortwave time signal station.
I/Q Raw Recording
Audio Sample

RWM is a Russian shortwave time signal station. Unlike other time signal stations, RWM only transmits time intervals, it does not tell you the time of day or month nor year.


Click Here to Hear RWM Live at WebSDR Univ. of Twente[edit]

Operation[edit]

From Wikipedia:

Between 0 and 8 minutes past the hour, RWM transmits a straight unmodulated carrier wave. At 9 minutes past, RWM identifies itself in Morse code. Between 10 and 20 minutes past the hour, RWM transmits a 1Hz pulse, with the difference between UT1 and UTC in units of one-fiftieth of a second encoded onto the once-per-second pulses. Between 20 and 30 minutes past the hour, RWM transmits 10 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). pulses each second. This transmission cycle is repeated every half hour.

Samples[edit]

Morse into 1Hz 1Hz 1Hz into 10 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 10 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
RWM Morse to 1.jpg
RWM.png
RWM 1 to 10.jpg
RWM time 10.png

Frequencies[edit]

RWM transmits at 4996 kHzKiloHertz (kHz) 10^3 Hz, 9996 kHzKiloHertz (kHz) 10^3 Hz and 14996 kHzKiloHertz (kHz) 10^3 Hz.


Decoding Software[edit]

Hobby Level Software


Professional Level Software


Video Examples[edit]

Additional Links[edit]