Ripple control system updates

Finally got around to setting up my ripple control transmitter and receivers again, this time with completely rewritten software for the encoder and running properly on 60hz. My setup here is a smaller re-creation of the Zellweger system used widely in Australia and New Zealand for control of street lighting, water heating, and other peak load management. It works by injecting a higher frequency (and typically harmonic) signal over the mains power, the signal is rather small (typically around 0.9%), but can be picked up by the receivers and used to turn loads on and off. I always found this system really interesting, but it isn't widely used in the US, so I have made my own transmitter and encoder here. This is using a protocol called DECABIT which was designed by Zellweger and originally implemented in the RE1 relay. It works by sending a start pulse, followed by 10 data pulses (each lasting 600 milliseconds on 50hz, 500 on 60hz) where 5 are on, and 5 are off. The 126 different combinations of this are used to signal different channels that receivers are assigned to, along with master channels to switch large groups and special function channels. The other protocol I mention called K22 was also developed by Zellweger, and is much older. It works by sending a start pulse and 22 timeslots, each lasting 7500 milliseconds on 50hz or 6250 milliseconds on 60hz. Each receiver is assigned to a timeslot and every timeslot is sent with every transmission, a signal being present in the timeslot turns it on, and it being absent turns it off. This was designed around electromechanical receivers that use synchronous motors (such as the ZEQ) and a dial that slowly rotates. DECABIT and K22 can both be used at the same time, where a DECABIT command is sent during an unused K22 timeslot, this is possible as a DECABIT transmission lasts shorter than a K22 timeslot. This is pretty common where there are older K22 relays that need to be supported alongside the newer ones, and is supported in my encoder. ‪@RODALCO2007‬ has many videos on the real equipment for this system, I'll list a few specific videos here:    • Zellweger Ripple Injection Plant      • Zellweger 1050 Hz [1]      • Strange noise in 33 kV switchyard - Invest...      • Ripple Relay Receiver   -- Timestamps -- 00:00 Introduction 00:50 Encoder software changes 02:45 Transmitter coupling and MG set 05:03 Operation and changing encoder settings 05:59 Enermet RO3 receiver 06:52 Manually sending commands (+11, +12, +13, -100) 09:59 Viewing RO3 signal logs 11:32 General description of system 12:52: Changing motor delay, sending command (+1) 15:05 Mercury vapor lamp startup 16:11 Changing motor delay, sending command (+11) 16:37 Sending commands (-0, -100) 17:54 Very quiet noise in lamp ballast 18:39 RO3 receivers switching off 19:06 Viewing RO3 signal logs again 19:27 Conclusion