Stand: Mai 2009

Folgende unbestätigte Informationen zum Kurzwellenfunk der deutschen BOS fand ich in „SPEEDX's World of Utilities Electronic Edition – Specializing in Utility Signals – Vol.2, No. 2, May 1993“.

Ich gebe im folgenden den englischen Originaltext 1:1 (einschließlich der Schreibfehler) wieder:

HOW TO MONITOR THE GERMAN STATE POLICE

Most monitors in Europe have at one time or another come across a strange type of closely spaced signals with callsignals like „HFFBW“, and „GOVHF“.

These signals are those of the German National State Police, or Landeskriminalamt (LKA).

The LKA is a national organisation in Germany and uses a series of local HF radio stations to communicate with its headquarters, located in Bonn.

Approximately 15-20 different local officies in all parts of Germany are linked with Bonn via this network. All of the LKA frequencies monitored so far have been between 2200 and 7900 kHz and seem to operate 24 hours a day. Now lets let our European friend tell you about how to monitor the LKA.

„The stations are in groups of 1 up to 6, usually 85Hz shift but some use a 170Hz shift. Channel IDs consist of 5 letters (ie. BWVHF). I think this means „BW“ (local station), „V“ von (from), „HF“ which seems to be Bonn (control) and the BW indicates the Baden-Wurtemburg (Stuttgart), so the reverse link should be HFVBM.

There are day and night frequencies and irregular midday (7MHZ) frequencies as well. As to be expected most message activity takes place during German local business hours from Monday through Friday.

Most stations will send a „QVL“ message every 4 hours:0300, 0700, 1100, 1500, 1900, and 2300 UTC, but their message will indicate German time. The format is: ZCZC 060 GKVHF 231200 SSS GKGK QVL e: 004 (1200) NNN

Most traffic is encrypted, but always begins with the circuit ID. Day/night channel changes and other operator service messages are given in German and would seem to give location information: HFVGS will always end with „Munchen kf“.

The following table is a possible analysis (incomplete) of how some of the IDs fit locations. However, many do not fit the pattern. For instance, 'G' abbreviations seem to duplicate others like „BY'-Munich, and GS -Munich. Here is the table:

LKA ID Locator Codes

Here are a few of the LKA Stations by channel and ID by group:

As you have probably noticed, all of the LKA frequencies on the previous page are 5MHz and under. This will definitely make the monitoring difficult here in NAm, but readers in Europe and Africa should stand a good chance of catching them. Our European author says that the Bonn stations seem to put out a much stronger signal than the other stations. Remember that if you tune these stations that they all use the radioteletype mode ARQ-E.

The baud rate will almost always be 96 baud (see the list), and the shift will be 85Hz, except where noted on the list. We will conclude the LKA Report next month with a few more frequencies.

If you have any further information (or corrections) please pass them along to us here at the Ute World Central. Monitoring the LKA is still largely unexplored territory (at least here in NAm), so any contributions are important.

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