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+	70391	-
100+	7719	-
200+	2782	-
300+	1347	-
400+	739	-
500+	448	-
600+	288	-
700+	197	-
800+	148	-
900+	81	-
1000+	60	-
1100+	52	-
1200+	36	-
1300+	22	SM5COP LZ2PP IN3KLQ JS2OVO DJ3GS WB0RLJ G0TMX KC2SIZ JA1SJR KD3KO JL1TQV SQ6JAN DM2BRF PY2OA G4PVM YT3T LZ1YP F4GOU JS1DEH K4IBZ LZ1FAX PY2XL
1400+	10	LZ7DL JF6DMT M0PKD I1YRL NE5A EI3LG JA0IKP JA1IAZ IW9HKM SP3UQW
1500+	16	HA6NL RX6MY OK1IF PY2AAM JA5EWQ LZ3QE IK3/UY7LA KO5Q IZ3SOI G0GKH IZ5BBS F4IGG OK1CF W8XW JK1VRF LU4JJ
1600+	14	DF9II DK7AK K5LY KI4DEF WB5N NA2DX K3XR W4CI W8FJ JA8TWF/1 VE6SYC WB6ZFG G4HOM W8BJO
1700+	7	SP3CW SP1JPM VE3OZO UX0DA VU2TMP W4MQC LY2PX
1800+	8	NN0D CT1BMW SM6OID YO9KWC PY2XW HB9DAX EA6EJ EA4JI
1900+	5	WB6CXC IK5VLL OE9SBD G3XIZ HA5AEK
2000+	3	W1AW DK1WI OY1CT
2100+	5	IU0HMB UR3QX JJ0TJS EE5EE OK1LW
2200+	2	DL3EL EA3CC
2400+	1	CT1GFK
2500+	4	K4UX WA8VTD K5VR OV1CDX
2600+	4	WZ2J LZ3AN N8TGQ DM2DZM
2700+	1	VU2JCD
2800+	3	F5IN SM5IMO N9QU
3000+	3	WX7V EA1EYL DK9PY
3100+	4	PY2UDB DJ6ZM DK4AN RU0LL
3200+	1	JA1GZV
3300+	2	GW4OKT YB1JCD
3400+	2	DK8IT PA5XM
3600+	3	KY4GS JR3OYH DL6AAF
3900+	1	WB4AEG
4000+	2	G5VZ IT9JLX
4200+	1	DM5EA
4300+	3	JR6JGB DL5YAD DF6YT
4500+	1	VE3NFN
4800+	2	ON7PQ W5BIB
5100+	1	WR5U
5200+	1	YO9CMC
5700+	2	DK5JPL DK1VD
6100+	2	JH6LDY KA2QPG
6400+	1	DF2JP
6900+	1	DL8NBM
8300+	1	YO4GOU
8700+	1	YO4BEX

Unique active calls: 84428. 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: 6039404 from 84428 individual calls.

In order to fulfil the rule, 80% of 6039404 hours (= 4831523h) would have to be produced by 20% of 84428 stations (= 16886).

As of today, those 20% generated 1951014 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...)