LD> Paul,
 Hi Leif,
LD> from what I've heard so far, Klingenfuss' ALIS is what is
LD> commonly known as RS-ARQ.
LD> Although it's actually incorrect to call ALIS a mode !!
LD> J.K. should know better !!!!
   Yeah, like I'm gonna tell him "You're Wrong Joergy!"
LD> ALIS stands for "Automatic Link Setup", and it is a processor
LD> made by Rohde & Schwarz/Germany, wich is integrated in a fully
LD> adaptive shortwave radio system; it is not an RTTY-mode!!
LD> All the German DIPLOs are equipped with this highly advanced
LD> system, transceivers used are mostly R&S HF-850s. The system
    What does the R&S stand for?
LD> itself can be upgraded with frequency hopping and encryption
LD> modules, it works totally user independent. Out of a pool of
LD> predetermined frequencies, the ideal channel is chosen by means
LD> of passive channel analysis (MUF calculation for specific target
LD> area), and the system starts to call the other party. Should
LD> the selected channel become noisy or propagation go down, then
LD> the system immediately picks another channel out of the pool
LD> and establishes an automatic freq. change, without the operator
LD> having to do anything. The system can be run with all sorts of
LD> ARQ-modes; the German DIPLOs use ARQ-E-96 and ARQ-E-192 and
LD> RS-ARQ-228,63.
    Sound pretty impressive. Does the Code 3 or Wavecomm decode this
    mode yet? I have never cuaght a German diplo station. I've tried
    listed channels with no success. I was wondering if you could
    describe to me what an ARQ-E/ or E3 station sounds like when they
    are in VFT. I know what they sound like in normal operation. Also,
    I would like you to try this frequency and tell me what mode you
    think this might be -if you can hear it, of course. 4.020.0 Mhz
    0000-0900 UTC. I have tried every mode, I get a lock on using
    FEC-A 192, but everything is trash, I think the signal maybe
    tricking the M-7000 into sync. Let me know what you hear.
LD> Well well, sounds like an excellent rig ....
LD> Have you tried decoding the Royal Navy/Royal Air Force VFT
LD> stuff with it ? It's more or less impossible to do this with a
    Yes I have decoded them, but it's areal pain with out a tuning
    scope! I find that many of the VFT signals I encounter are either
    encrypted or impossible lock on to. I use a Kenwood R-2000, with
    the stock filtres, it could be better.
  73's & Happy Holidays
  Paul....
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 X OLX 2.1 TD X Never follow tracks into a cave....You may find a train.
--- Maximus/2 2.02
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