GM Andy, In PC-ALE the AQC-ALE operation differs from MARS-ALE for some time now, however with both tools selecting AQC-ALE means that all Soundings and Calls originated by your station will be in AQC-ALE mode, which differs from NORMAL ALE and which can only be decoded by an ALE modem that supports AQC-ALE.
The way in which G4GUO implemented AQC-ALE in PC-ALE regardless of wether you are actually in AQC-ALE or not, it will decode and display AQC-ALE channel acty and respond to either type of call made to your station. However I have found this to be a problem with falsing on bad ALE words and processing NORMAL ALE linking calls as AQC-ALE which is just wrong and I changed MARS-ALE to only do so when actually in AQC-ALE where the standard mandates backward support in the event of an incoming NORMAL ALE call when in AQC-ALE mode. I also changed MARS-ALE so that when in AQC-ALE scan rates of 2 ch/sec and above are supported as that is my interpretation of the standard, whereas in PC-ALE only 5 ch/sec is supported. AQC-ALE is far superior to NORMAL ALE, its 2G+ and is much more reliable and fast at establishing and maintaining an ALE linked state under severe channel conditions. It is only to be found in the most expensive Military ALE transceivers to date, its use is tactical rather than 24/7 networks and it offer many additional operational features. /s/ Steve, N2CKH At 11:56 PM 8/3/2007, you wrote: >I think previous postings here indicated that AQC ALE is unlikely to >filter down to amateur transceivers. Does anyone know what the AQC >Enable feature within PC-ALE does ? > >Andy K3UK
