VampireNZ Posted April 4, 2019 Posted April 4, 2019 (edited) Not sure if this has been mentioned before, but it seems the settings on the TACAN panel don't seem to matter so much. Scenario: I had a Tanker set for 31Y, dialed it up in the front and selected Pilot. -Makes no difference if I select X or Y channel, it still tracks the signal. -Doesn't matter if I select T/R or A/A, same deal. But if you turn it off, then go T/R it won't track, but if you then select A/A, then T/R it will track. Sometimes it dropped the TACAN after a while in T/R. Either way it was pretty screwy. I believe it should work if you select Y channel and A/A mode only? - not variations of each. Edited April 14, 2019 by IronMike Vampire
Super Grover Posted April 5, 2019 Posted April 5, 2019 (edited) Thanks for your observations, VampireNZ! There's nothing to worry about. It looks that everything is ok. - X and Y share frequencies in A/A, and DCS tunes TACAN channels by the frequency. - We use custom code to simulate the TACAN navigational set AN/ARN-84(V), which includes tracking, signal processing, logic, error modeling, and failures. What you described is probably related to the device memory (8-10seconds) of a tracked signal when the signal has been tracked for long enough. During this period, the last valid measurement will be displayed, even though the signal isn't present any longer. A very similar logic is applied when you start tracking - the device has to receive the signal for a short while before it starts displaying it. For further details on tracking, errors, timing and everything else, please refer to the specification of the AN/ARN-84: MIL-N-81207A. Edited April 5, 2019 by Super Grover Krzysztof Sobczak Heatblur Simulations https://www.facebook.com/heatblur/
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