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csThor

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  1. Hi Ilya! For details on the FuG 16ZY please refer to a more detailed explanation on pages 41 and 42 in this document: http://www.cdvandt.org/D-Luft-T-4069-FuG-16ZY.pdf E-Messbetrieb means the Y-device in an aircraft is active (kinda like a mobile radio beacon which allowed ground installations to detect and follow a fighter unit's progress for GCI ops). This device was installed in only a few aircraft per unit (Gefechtsverband) but only one was supposed to be active at one time (the rest were reserve). Any aircraft not supposed to operate in this role had the Y-device physically deactivated before flight. As far as I understand the manual the I frequency setting (Y-Führungsfrequenz) is for the radio emitter only (the pilot will still hear the unit's command frequency, he just won't be able to talk to them - see page 41 points 352 & 353 of the linked document). If the pilot now switches the AD 18Y selector to Y/ZF mode the Y-device will be active and will give the fighter control officer onthe ground the possibility to track the unit's progress and direct them to the enemy formations. The II frequency setting is the formation's command frequency (as it was correctly said). ∆ was correctly translated but I can't say what it was used for. The Reichsjägerfreuqenz on □ was pretty much an information frequency which was used to transmit general information on the tactical situation in the air over Germany to the fighter units. It was mostly a backstop in case the contact between fighters and ground control broke down or was jammed. Now back to the AD 18Y. In any other setting but I that switch was used to select either radio mode (FT = Funktelegrafie) or to "lock on" to a radio beacon and use it for navigation (ZF = Zielflug-Anzeige), in day fighters usually in combination with the "Anzeigegerät für Funknavigation" (don't know technical abbreviation). I hope that helps.
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