Only active in the range of the control stations in Kaluga and Krasnojarsk.
Data transmission on 435.315 MHz (TX A) and 435.215 MHz (TX B) – Modulation PM Manchester coded 9.6 kbit/s (FM ) with 1136 bytes frame length.
One transmission burst contains of 256 frames with sync and frame counter. Data contains interleaved data, it’s first and second part of a longer frame send on even and odd numbered frames.
A complete telemetry record consist of 128 x 128 bytes.