Hi all,

these is text which was forwarded to me from a well-known European CW association which asked me to remind PSK operators to respect the IARU band plan. This is all about Region 1 and it's about daytime QSOs within Europe. If you wish to leave an educated comment I will be happy to forward it.

By now it should be common knowledge that the IARU has assigned the subband portion 7035 to 7040 kHz to CW exclusively on March 29, 2009.

Unfortunately, this former digital sub band seems to be a very special case because sub band abuse outnumbers regular use.

While it is pretty easy to count CW stations there from Reverse Beacon Network data, PSK statistics are harder to obtain since RBN skimmers for digital modes are still rare.

If we kept the volatile spots we see regularly we would soon have a nice collection:

FEBRUARY
STATISTICS of Digital Spots from 7033 kHz to 7039 kHz
-----------------------------------------------------


Columns
-------
Cty DXCC entity, main prefix
CS Number of detected call signs
Spots Number of detected Internet spots
HamPop Estimated size of the ham radio population
Dens Station density: detected calls per 1000 ham pop


Cty CS Spots HamPop Dens
UN 32 237 550 58.2
ER 10 183 217 46.1
UA2 12 49 272 44.1
OM 35 392 1030 34.0
ES 21 192 634 33.1
YL 7 49 215 32.6
UA 772 8562 25142 30.7
GU 4 18 188 21.3
UR 390 4215 18488 21.1
SV5 2 6 103 19.4
9A 35 543 1837 19.1
TA 22 255 1225 18.0
EU 24 241 1403 17.1
SV 44 312 2600 16.9
YO 64 560 3850 16.6
YU 47 618 3000 15.7
OE 101 905 6542 15.4
SP 241 2013 16000 15.1
ON 80 498 5444 14.7
UA9 169 1567 12586 13.4
OK 70 562 7147 9.8
GI 16 120 1694 9.4
I 446 3500 50939 8.8
5B 5 17 578 8.7
LX 5 8 582 8.6
4X 11 291 1277 8.6
SV9 2 50 257 7.8
HA 65 606 8620 7.5
EA9 3 4 400 7.5
EA6 11 77 1565 7.0
LY 6 38 871 6.9
GM 31 167 4908 6.3
LA 33 67 5512 6.0
HB 33 222 5500 6.0
GJ 1 1 167 6.0
F 151 951 25000 6.0
SM 66 200 11516 5.7
DL 391 1914 70100 5.6
PA 81 655 14720 5.5
LZ 21 449 3994 5.3
OH 31 197 6100 5.1
GW 14 95 2804 5.0
G 226 1157 49019 4.6
9H 2 2 470 4.3
S5 27 383 6765 4.0
E7 7 170 1758 4.0
EA 171 1323 52850 3.2
OZ 21 97 10060 2.1
EA8 6 13 3675 1.6


Based on 35758 spots and 4294 detected call signs. Spots taken randomly between 0700 and 2200 UTC. The average number of spots per call is 8.3 This is not too bad, the average user with a sloppy view about the IARU band plan was looged only once in three days.

Obviously the respect for the band plan varies from country to country.

Who are those who don't respect the bandplan? You find them on the usual Internet pages every day...

Who produced most abusive spots? As it is no honour to be listed here we have anonymized the suffix letter. Those who are listed may recognize themselves and feel ashamed or proud or whatever....

These are the number of spots per individual station in February. So the most active individual using digital modes in the CW band has a call starting with I4. This denotes one particular I4, not all I4s with a 3-letter suffix. In fact there is just on I4 in the set of massive abusers.

# C/S
291 I4...
272 LZ1..
238 9A4.. YU7..
226 UK8...
203 SP9..
191 S57...
187 RA3...
150 IS0...
146 RA3...
135 4Z1.. E74..
133 4K6..
131 OM3..
129 ER1.. PA0...
121 UA6...
120 RA3...
118 RA9... UB9...
117 EA3... UT4...
116 UA9..
113 EB5... UT2..
112 9A2..
111 UA6...
110 SQ9...
108 UA1... UA3..
105 IK1... US0..
104 UA3..
103 IZ8... RA6...
101 RK4.. RL3..
97 4Z5.. RX9...
95 RW6..
94 TB7...
92 RA3...
91 R3..
90 DK9.. IK0...
87 DL5... IK7... U5..
85 EA/LB2. IT9... RX6...
84 RV3.. UB6...
83 UR5..
81 RK6..
80 F4...
79 2E0... RX3...
78 HF2013...
77 S58. UA3...
75 IZ0... PD1... RN3... UA3...
73 G6... HA1..
72 LZ1..
71 RN4... UW2..
70 SP7... UR3..
69 UT5..
68 SP2... UA1... YU7..
67 RW3.. UT1..
66 PA4...
65 F5... OE2013...
64 HA6...
63 R3.. UB9...
62 R3.. UB6...
60 I2... R6.. SP3... UT4..
59 OE2013... RZ3.. UB4... UT5..
58 DF2.. IZ2... MW6... SV7... UA3...
57 ON3.. RW6... UN3.
56 EA3.. RA3... UY2..
55 YU15...
54 IK7... RA6... RW4... SP3...
53 RN3.. RV1.. UR7...
52 RA3... UA3... UA3... YO9...
51 IW3... MI6... OK2... R2... RA6... UA6... UR4...


Of course, all the calls are known.... Would you like to see full call signs here?