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+	64961	-
100+	7409	-
200+	2703	-
300+	1304	-
400+	774	-
500+	469	-
600+	275	-
700+	216	-
800+	128	-
900+	90	-
1000+	66	-
1100+	73	-
1200+	32	JA3DLE/1 WB6ZFG KC8TQP PT7BT SM7YIN 7N3ORC WB7EUX/B G4WPS NA6JD EA7EGU K5GJR RX6MY SV5TH NI4E OZ4ADX IK7OFI DL4CF RK4FD KA1EFO F4GOU ZL2AIM NA5G DL1BUG LZ2P DL2DX DJ8CZ K3WW N5QLZ GM0HKS W8EH/B DL7HH I1YRL
1300+	28	KW7Q PA5XM 5Z4PA KY4GS E77EA RK3ER PY2AAM IU0BNG VU2TMP F5POJ JA5EWQ SM2FIJ KB6FPW YL3JD AA4MC 9A9RA JA0KSB EA2PW W7SW JQ3GIP PY4YYF SM2BLY JK1XDX G4DNP RW7F WZ2J DL2SWK IK3VUT OK1IF JA8TWF/1
1400+	31	KA9ZAP EA6BB F4IGG KH6DL HB9IIH KA1FXK K2KRG M6MPC LZ3AN I0YQX ZL2MHF CM6SQ EA1FCL HA5AEK K4IBZ LA8IG F4GFT LZ2RS PI7ETE N4QA PY2XL AC5XK IT9QAU DK4AC EA4HKF W8FJ DL9LM YO9COR DJ5CW KW7Q PA5XM
1500+	24	IW2HTH PC8X YO9KWC DL4AT/QRP JR3OYH LZ3QE IK0IXI K5LY G4HOM N0GRA NN0D VE3IIM/B R0LW ZA1EM OK1CF LA1MFA GM4ATA KE0UI DJ6IH SM5COP E5EE N1MX WA6APQ WB4NCT
1600+	22	IW9HKM WB4AEG VK2GR EA6EJ EE5EE TC100TC RA9LL G0GKH W4MQC VA3VA JH5UVK CT1ZQ VE4GH I5EFO OK2BEI F5RIJ AH6RT OE5MSM LZ7DL VE1VDM DL2HRF W8BJO
1700+	11	YL3AJT UA1CE OY1CT JS1DEH N7MA W8EDU/B VU2SRT AC7GZ W7AEH RM2D VA3KAH
1800+	13	K5SBR IK6JFF VU2JCD DF9II CT1BMW VK2ARZ DK1WI JM7OLW JJ0TJS W4ZZK/B WB0B NR4A SM6OID
1900+	6	HB9DAX DK4RW IZ5BBS DL2HS DL5UZ LZ2PP
2000+	5	DM2BRF KI4DEF K4UX SP3CW IZ3SOI
2100+	4	IT9EJW IK5VLL W4CI DK7WA
2200+	1	DM2DZM
2300+	2	YB1JCD LY2PX
2400+	1	DK7AK
2500+	1	JF6DMT
2600+	4	W3NA DK8IT GW4OKT DL3EL
2700+	3	DM6EE PY2UDB W1AW
2800+	1	WA8VTD
2900+	1	EA1EYL
3000+	4	F5IN SM5IMO YO9CMC JA1GZV
3100+	5	OV1CDX AE5Z K5VR JH6LDY DK4AN
3200+	1	M0LRQ
3300+	1	OK1LW
3400+	1	DL7VEA
3700+	2	DL8NBM DK1VD
4100+	1	DK9PY
4200+	1	JJ3KTW
4400+	1	DF2JP
4600+	1	IU0HMB
4800+	2	DL5YAD VE3NFN
4900+	1	G5VZ
5100+	1	DK5JPL
5600+	1	W5BIB
5700+	2	YO4GOU ON7PQ
6000+	1	DJ6ZM
6100+	1	KA2QPG
7600+	1	YO4BEX
8700+	1	WR5U

Unique active calls: 78687. 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: 5905115 from 78687 individual calls.

In order to fulfil the rule, 80% of 5905115 hours (= 4724092h) would have to be produced by 20% of 78687 stations (= 15737).

As of today, those 20% generated 1857294 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...)