Hello, I use a Graupner Hott and verified I have SUMD OF 16 with GR 16 or 24
I pluged as it is sayed on the first wiring diagram, so Hott system without PowerBox power supply system, using 2 receivers.
Also it seems I have the V26 last version.
I have no signals, servos not moving and the iGyro SRS does not identified the channels if I move the sticks on my radio.
Of course everything is OK if my servos are connected directly to the receivers, not using the iGyro srs.
Thank you for help !