DRUMS AND TRUMPETS
Imagine a scene at a military funeral when the lone trumpeter sounds "The Last Post" and you will have some idea of the musical signal sent by this Serbo Croat language number station. This plaintive bugle sounds about an hour before the transmission of the spy messages begins. Just before the actual message starts a different signal is sent. This is played with drums and trumpets and is a very up-tempo military marching tune similar to those played before the beginning of a battle. The woman then announces (in Serbo-Croat) "Noma 12671, Gruppi 44; Noma 12671, Gruppi 44,, and then goes into the five figure text, ending with the word "Krai". The Serbo-Croat figures are: "Jedno, Dva, Tri, Ctyri, Pet, Sest, Osm, Devet, Nula." The woman pronounces the numbers like this: Edno, Dva, Dree, Seti, Pet, Ses, Seden, Octen, Deda, Nula.

Here's what Langley Pierce said about the Bugle Tune:
"Meticulous and painstaking work by a numbers monitor in S.E England has revealed that in actual fact the piece of music is not the "Last Post" but instead is taken from the 1965 song "Il Silenzio" by Nino Rossi from Turin."

The station uses three main frequencies: 4740, 5500 and 6675 although it has also appeared on 8070 and 5600. Here is an example of traffic sent over the last few years:
Tue 3-1-89 6675 2200
Fri 27-1-89 6675 2300
Sun 12-2-89 6657 0000
Thu 64-89 5600 2100
Mon 17-4-89 4740 2245
Tue 23-4-89 5500 2200
Tue 21-11-89 6675 2100
Sun 21-1-90 6675 2100
Fri 274-90 6675 2300
Mon 7-5-90 6675 2100
Mon 26-6-90 6675 2230
Tue 21-8-90 6675 2100
Thu 7-2-89 5600 2200
Tue 12-3-90 6675 0000

E1  READY, READY

This English language station would appear to be part of the same set-up as the Czech "drums and trumpet" station in that the main frequencies used are exactly the same: 4740 and 6675. The woman announcer tries very hard to sound British but unfortunately the letter "R" in "four" is rolled far too much to sound convincing. The broadcasts start with the woman repeating a five figure identifier. An unusual feature of these identifiers is that they seem to be related. See how many of them are similar in the list below:

10491 36511 35702 62794 43101 43473 69421 62467 10361
62683 62453 62378 17682 70100 17462 45690 17399 45260
43381 15181 04397 15521 43470 15371 40690 32684 43181 32831 15431

 
After the five figure identifier has been repeated for five minutes, the woman says the group count ("22, 22") then, "Ready, Ready" and goes into the five figure groups.
'Times and frequencies noted so far:
4740 - 2000, 2100, 2200
5695 - 2200
6515 - 2200
6655 - 2100
6675 - 2100, 2200 6935 - 2200
8070 - 2200, 2100