RBN activity statistics

Charts of RBN activity, active callsigns and (tbd) more stuff. A work in progress.

Histogram: Active hours of individual callsigns (last 365 days)

Active hours	Count	Calls
10+	70713	-
100+	7727	-
200+	2795	-
300+	1338	-
400+	733	-
500+	443	-
600+	293	-
700+	209	-
800+	142	-
900+	86	-
1000+	56	-
1100+	47	-
1200+	41	-
1300+	19	SP3UQW SM5COP WB0RLJ LZ2PP G0TMX NE5A JS1DEH IN3KLQ DJ3GS JS2OVO YT3T JA1SJR JL1TQV NR4A SQ6JAN F5MAI KC2SIZ KG5SSB LZ1FAX I1GIS
1400+	14	IK3/UY7LA LZ7DL WB5N G4PVM LU4JJ M0PKD KD3KO EI3LG JA1IAZ PY2OA JA0IKP I1YRL IW9HKM SP3UQW
1500+	13	G4HOM W8BJO IZ5BBS OK1IF OK1CF IZ3SOI LZ3QE G0GKH KO5Q JF6DMT W8XW F4IGG PY2AAM
1600+	14	VU2TMP W4MQC K5LY KI4DEF JA8TWF/1 W4CI JK1VRF JA5EWQ W8FJ DF9II WB6ZFG DK7AK RX6MY HA6NL
1700+	7	G3XIZ PY2XW SP1JPM SP3CW VE3OZO K3XR NA2DX UX0DA
1800+	10	NN0D CT1BMW OY1CT OE9SBD HA5AEK EA4JI SM6OID EA6EJ LY2PX G3XIZ
1900+	5	YO9KWC IK5VLL HB9DAX WB6CXC VE6SYC
2000+	2	W1AW DK1WI
2100+	2	EE5EE JJ0TJS
2200+	5	CT1GFK EA3CC UR3QX OK1LW IU0HMB
2300+	1	DL3EL
2400+	3	N8TGQ OV1CDX WZ2J
2500+	2	K4UX WA8VTD
2600+	4	DM2DZM JN87FIT LZ3AN K5VR
2700+	1	RU0LL
2800+	2	SM5IMO F5IN
2900+	3	VU2JCD WX7V N9QU
3000+	2	EA1EYL DK9PY
3100+	3	GW4OKT DK4AN PY2UDB
3200+	1	DJ6ZM
3300+	1	JA1GZV
3400+	3	YB1JCD PA5XM DK8IT
3600+	2	KY4GS DL6AAF
3700+	1	JR3OYH
3800+	1	WB4AEG
4000+	2	IT9JLX G5VZ
4200+	2	DM5EA DL5YAD
4300+	2	JR6JGB DF6YT
4500+	1	VE3NFN
4800+	1	ON7PQ
5100+	1	WR5U
5200+	2	YO9CMC W5BIB
5700+	1	DK5JPL
5900+	1	DK1VD
6100+	2	JH6LDY KA2QPG
6400+	1	DF2JP
7200+	1	DL8NBM
8300+	1	YO4GOU
8700+	1	YO4BEX

Unique active calls: 84763. Note that beacons and frequently "busted" callsigns like T2DE were not included here.

How many hams generate how much activity?

Does the Pareto principle ('80/20 rule') hold true for RBN spots?

As of today, the total number of activity hours (i.e. hours in which individual callsigns were spotted, with a lower threshold of 10 hours over the last year) registered by the RBN is: 6052897 from 84763 individual calls.

In order to fulfil the rule, 80% of 6052897 hours (= 4842318h) would have to be produced by 20% of 84763 stations (= 16953).

As of today, those 20% generated 1952395 hours of activity... Sorry, Pareto!

(Note: The minimum activity per callsign and year was 10 hours. If this threshold was increased to a more reasonable value, the 80/20 rule may hold true...)