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+	70880	-
100+	7862	-
200+	2762	-
300+	1383	-
400+	793	-
500+	455	-
600+	311	-
700+	222	-
800+	149	-
900+	106	-
1000+	54	-
1100+	64	-
1200+	36	-
1300+	25	YL3AJT IT9QAU VU2TMP 9A9RA UA3OT VK2GR LA1MFA SM5COP SM2BLY JA5EWQ WA8VTD SQ6JAN E77EA N4QR ZA1RR W0WF YL3JD N5QLZ K2KRG N1MX BH4FCD CT1ZQ WB6ZFG R8PA W7SW
1400+	16	RX6MY G0MBA/B JA0IKP IN3KLQ KG5SSB DF2IC EA7BEZ LZ3QE DL2DX PY2OA NR4A KA1FXK K3MM SA6AUT IK3VUT JM7OLW
1500+	18	F5MAI WX7V LZ2PP VK2ARZ VE7UTS XV9G KO5Q WB0RLJ M6MPC WB0B SP3CW W8BJO JL1TQV DM100FK UA6WW EA4GWG LZ7DL W7AIT
1600+	15	JQ3GIP IZ3SOI DK7AK JS1DEH LZ3AN W7AEH G0GKH NN0D W8FJ UN7NFD VK5GG DL6AAF K5LY W4MQC G0PKT/B
1700+	8	IT9JLX IK6JFF UX0DA DK1WI VU2SRT HA6NL OY1CT OK1CF VE3OZO
1800+	6	G4PVM DL2SWK G4HOM YT3T EA3CC IT9JLX
1900+	10	F5PLC EA6EJ SM6OID OS5Z JA1IAZ DF9II WS1L W4CI IW9HKM JA8TWF/1
2000+	5	KI4DEF JJ0TJS IK5VLL AI4UH YO9KWC
2100+	3	JF6DMT N9QU CT1BMW
2200+	2	EE5EE HB9DAX
2300+	2	K4UX IZ5BBS
2400+	1	LY2PX
2500+	4	DJ6AU DM2DZM VE6SYC DL3EL
2600+	2	OV1CDX DF6YT
2700+	3	K5VR W1AW JK1VRF
2800+	3	WB4AEG PA5XM KY4GS
2900+	1	DK8IT
3000+	2	YB1JCD F5IN
3100+	3	SM5IMO DK9PY EA1EYL
3200+	1	VU2JCD
3300+	1	DK4AN
3400+	1	JA1GZV
3600+	1	PY2UDB
3800+	2	GW4OKT IU0HMB
3900+	1	OK1LW
4300+	3	DL5YAD G5VZ DM5EA
4400+	3	VE3NFN YO9CMC DJ6ZM
4500+	3	JR6JGB JR3OYH DL8NBM
5000+	1	ON7PQ
5600+	1	DK5JPL
5700+	1	M0LRQ
5800+	1	DF2JP
5900+	1	KA2QPG
6300+	1	W5BIB
6800+	1	JH6LDY
6900+	1	DK1VD
8100+	1	WR5U
8300+	1	YO4GOU
8600+	1	YO4BEX

Unique active calls: 85233. 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: 6213493 from 85233 individual calls.

In order to fulfil the rule, 80% of 6213493 hours (= 4970794h) would have to be produced by 20% of 85233 stations (= 17047).

As of today, those 20% generated 1981495 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...)