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+	69162	-
100+	7555	-
200+	2662	-
300+	1320	-
400+	718	-
500+	398	-
600+	270	-
700+	193	-
800+	139	-
900+	86	-
1000+	76	-
1100+	43	-
1200+	22	SA6AUT ZA1EM WB0RLJ OS5Z K5ISS IK3/UY7LA F5POJ N4TTU VU2OR OY1C EA7BEZ AA2AN/B JR3OQJ W8XW W8XAL I1GIS KH6DL I1OXO VK2ARZ IK7FPU HA5AEK DL7DAX
1300+	17	M5IMO HA6NL JA5EWQ G3XIZ HS0EDP PA3AAV DL2HRF IU0BNG IN3KLQ UG4A KC8TQP OK2BEI W3RJ EA1FCL F4IGG WD9DWE JA0IKP
1400+	19	IK6JFF RX6MY W4MQC K4IBZ PY2XL W8FJ K4MW DF9II SO9PC G0GKH OE9SBD T4EI JS2OVO KB8UGP KC7NBM M0LRQ CT1BMW SM5COP N3TWX
1500+	10	IT9QAU VE3OZO EU4E JJ0TJS DJ4GX AI5IN AB4I DL3AZ R8MC LZ2PP
1600+	14	HB9DAX SO5CW W8BJO LY2PX EA6EJ K4U G4HOM JM7OLW NE5A JF6DMT NN0D DM2BRF JN1RKE SM2ELN
1700+	8	EE5EE IZ5BBS IW9HKM W4CI DK1VD DK1WI BG2TFW SP6CW
1800+	2	K5VR IK5VLL
1900+	7	WS1L M0PKD F5IN EA4JI SM6OID WP3Y OK1CF
2000+	6	R3ZBI UX0DA YO9KWC DL3EL G4PVM R1OA
2100+	3	LU4JJ AA7FV UR3QX
2200+	6	F5PLC OV1CDX SM5HQN PY2VA JM1IKW WX7V
2400+	4	DJ6ZM DK9PY DK7AK DM2DZM
2500+	1	F8BCU
2600+	4	K4UX DK4AN OH3GD EA1EYL
2700+	3	N9QU G5VZ OY1CT
2800+	3	EA3CC W1AW WB5N
2900+	3	ON7PQ WZ2J VU2JCD
3000+	3	SM5IMO OK1LW LZ3AN
3100+	3	IN3TWX PY2UDB KY4GS
3200+	4	WA8VTD DK8IT PY2XW CT1GFK
3300+	1	PA5XM
3700+	1	JA1GZV
3800+	1	IT9JLX
4000+	1	DM5EA
4100+	1	JR3OYH
4200+	1	VE3NFN
4300+	1	N8TGQ
4400+	2	DL5YAD DF6YT
4600+	1	DL6AAF
4700+	1	CT1EXR
5200+	1	WB4AEG
5300+	1	JR6JGB
5400+	1	YO9CMC
6000+	3	KA2QPG DK5JPL JH6LDY
7100+	1	DL8NBM
7600+	1	DF2JP
8600+	2	YO4BEX YO4GOU

Unique active calls: 82785. 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: 5871933 from 82785 individual calls.

In order to fulfil the rule, 80% of 5871933 hours (= 4697546h) would have to be produced by 20% of 82785 stations (= 16557).

As of today, those 20% generated 1896174 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...)