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+	69845	-
100+	7693	-
200+	2736	-
300+	1348	-
400+	737	-
500+	447	-
600+	286	-
700+	194	-
800+	132	-
900+	83	-
1000+	63	-
1100+	54	-
1200+	34	DH9BAJ N1MX VE6SYC DL3AZ I1GIS JA1SJR JK1VRF K9UIY JL1TQV JS1DEH UY7LA UT7LW KC7NBM EA5C IT9QAU DL2DX ZA1RR JJ1FXF KR2Q NR4A AI5IN IT9DNW SA6AUT K0HNL WS1L PY2OA JL1UCH G4PVM IK3VUT F5MAI I1OXO F4JLJ EW1CY OK2BEI
1300+	23	IN3KLQ JA0IKP LZ2PP DJ3GS JA1IAZ DM2BRF KC2SIZ SM5COP K4IBZ JS2OVO G0TMX F4GOU YT3T JM7OLW PY2XL W3RJ WB0RLJ SQ6JAN OH3GD F6IVT LZ1YP LZ1FAX DL5XL
1400+	9	LZ7DL IZ5BBS NE5A LU4JJ KO5Q SP3UQW EI3LG IW9HKM M0PKD
1500+	17	G4HOM HA6NL W8BJO RX6MY JA8TWF/1 JA5EWQ IZ3SOI NA2DX F4IGG G0GKH K3XR LY2PX OK1IF W8XW I1YRL JF6DMT OK1CF
1600+	10	VE3OZO SP1JPM K5LY DF9II W8FJ PY2AAM KI4DEF IK3/UY7LA W4CI WB6ZFG LZ3QE
1700+	7	SM6OID SP3CW HB9DAX DK7AK W4MQC VU2TMP VE3OZO
1800+	7	NN0D EA4JI UX0DA EA6EJ CT1BMW OE9SBD YO9KWC
1900+	5	HA5AEK WB6CXC WB5N IK5VLL PY2XW
2000+	4	G3XIZ DK1WI EE5EE JJ0TJS
2100+	4	OY1CT UR3QX W1AW IU0HMB
2200+	2	EA3CC OK1LW
2300+	1	DL3EL
2400+	2	K5VR OV1CDX
2500+	2	VU2JCD K4UX
2600+	5	LZ3AN SM5IMO WA8VTD CT1GFK DM2DZM
2700+	2	N9QU N8TGQ
2800+	1	F5IN
2900+	2	WZ2J DK9PY
3000+	2	EA1EYL DJ6ZM
3100+	4	WX7V PY2UDB DK4AN YB1JCD
3300+	2	RU0LL JA1GZV
3400+	3	JR3OYH DK8IT PA5XM
3600+	2	KY4GS GW4OKT
3800+	1	DL6AAF
4000+	2	G5VZ IT9JLX
4100+	1	WB4AEG
4200+	1	DM5EA
4300+	2	W5BIB DF6YT
4400+	3	VE3NFN DL5YAD JR6JGB
4800+	1	ON7PQ
4900+	1	WR5U
5200+	1	YO9CMC
5500+	1	DK1VD
5800+	1	DK5JPL
6100+	1	KA2QPG
6200+	1	JH6LDY
6500+	1	DF2JP
6900+	1	DL8NBM
8400+	1	YO4GOU
8700+	1	YO4BEX

Unique active calls: 83789. 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: 5990306 from 83789 individual calls.

In order to fulfil the rule, 80% of 5990306 hours (= 4792245h) would have to be produced by 20% of 83789 stations (= 16758).

As of today, those 20% generated 1937129 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...)