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+	56166	-
100+	7419	-
200+	2728	-
300+	1396	-
400+	823	-
500+	464	-
600+	310	-
700+	241	-
800+	173	-
900+	82	-
1000+	83	-
1100+	56	-
1200+	56	-
1300+	31	DK2FE OK1IF IT9ATQ/B BG6GQE DF4XX EA6BB LZ3QE W9IK W4ELP K3LU DG2FDD EA6NB JJ3KTW I3JUK IK0YVV JN78SB K5LN HA5AEK IU0JFZ NM1I DS5USH EU8F M0TDW NA5G WA9VEE DL5CL IZ4GSC AA3B N7ET SP2FAP RU3X
1400+	27	KB1CL RX6MY VE3KZ OK1CF F5RIJ DL1SDZ EA8DHV F8DGY SM6CPY IK5ZWU IK6JOT NI4E I0YQX KA6IOM KC2SIZ JH5UVK NN0D F6HK GW0ADC S57V G4HOM YL2AG K4BAI N7ET/DU7 IZ5BBS PA5XM YT5FD
1500+	19	IK7OFI SM2FIJ IK0IXI W8KR SV2BBK DL2HRF IK0FNH CL3OR WB6ZFG YL3CW IT9QAU OY1CT G4PVM K3LR DK9PY NR4A K4UX KB4JR W1EAT
1600+	18	SM6CWK IW9HKM DL5FCZ DJ6IH CM6SQ DL7VEA YL3AJT N4QA DL7JMJ DJ1YFK UR3QX DL2DX LA8IG NY2PO KP4TF JA1GZV CT1ZQ UT5XS
1700+	10	LZ1QI 4O4T W4CI Z33A SM6OID W5ZO UT5NR WB4AEG OK1HB G3XIZ
1800+	6	DK7AK VE1EX ON4ADI VE3BXG S52OW W4MQC
1900+	8	LZ7DL DL2IAD G0GKH SQ6JAN RK4CT SM5COP SP3CW YU7QF
2000+	5	G4IWO K5VR BG7IDX W8KJP F5PLC
2100+	1	IK3VUT
2200+	8	WB0B F6HKA LY2PX DL3NAA K5LY JF6DMT DK1WI IZ3SOI
2300+	4	ON7PQ IZ2MGN OZ2A K4YFH
2400+	5	LA1MFA LZ2PP HB9DAX DM2DZM DO4DXA
2500+	3	AE5ZH LB6GG 9A2AJ
2600+	4	SM5IMO SP95IARU DK8IT DK5CCA
2700+	1	DK4AN
2800+	1	F5IN
2900+	2	PY1ZB OV1CDX
3100+	1	PY2UDB
3200+	2	N4OW DM2BRF
3300+	2	IK5VLL DL5UZ
3400+	2	F4GFT S53RA
3500+	1	DK5JPL
3600+	2	V31MA AL7JK
3700+	1	DM6EE
3800+	1	GW4OKT
4700+	1	IU0HMB
4900+	1	VE3NFN
5300+	1	DL5YAD
5400+	1	W5BIB
5800+	1	N3HI
8100+	1	DJ6ZM
8400+	1	WR5U

Unique active calls: 70169. 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: 5786355 from 70169 individual calls.

In order to fulfil the rule, 80% of 5786355 hours (= 4629084h) would have to be produced by 20% of 70169 stations (= 14034).

As of today, those 20% generated 1805697 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...)