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+	60517	-
100+	7286	-
200+	2584	-
300+	1309	-
400+	711	-
500+	451	-
600+	308	-
700+	206	-
800+	155	-
900+	106	-
1000+	76	-
1100+	53	-
1200+	45	-
1300+	39	-
1400+	28	E20XMG K4IBZ KC8TQP AC5XK DL2HRF N5MIG DL9LM PY2XL N9ZXL F4GFT JA3DLE/1 KA1FXK KN2CZZ LZ1QI ZA1EM KA9ZAP HA5AEK M6MPC WB6ZFG CT1ZQ E77EA NI4E JH6LDY DJ6IH KB6FPW BH4FCD DK7WA VK3RRU OK2BEI
1500+	18	IK0IXI II5WRT VE3OZO K0HNL WA6APQ II9WRTC G4HOM JJ0TJS JH5UVK YL3JD II2WRTC RW7F W8YT K9VKY OK1CF YL3AJT ZS5CN E20XMG
1600+	12	CM6SQ G0GKH 7N3ORC II1WRTC SM5COP CT1BMW NN0D W4MQC OY1CT DK4RW PI7RTD HA3LN
1700+	10	W1AW DO6IH VE4GH LZ3QE K4UX NS9RC KH6AQ ZL3TEN JS1DEH WZ2J
1800+	8	DK1WI JM7OLW DK7AK LZ7DL VK2GR K5LY WB4AEG F4IGG
1900+	7	SM6OID ED4YBA DL2HS IW9HKM 5Z4PA VU2SRT WB0B
2000+	9	DM6EE SP3CW LZ2PP II5WRTC YO9CMC RK4CT PY2OA DM2DZM II3WRT
2100+	10	W4CI LY2PX HB9DAX VK4RST I5EFO DM2BRF IZ3SOI JA1GZV EA1EYL V31MA
2200+	3	JF6DMT NR4A N4QA
2300+	1	W7AEH
2400+	1	IK5VLL
2500+	3	JJ3KTW II3WRTC SM5IMO
2800+	2	F5IN DK8IT
2900+	4	DL5UZ S53RA DL8NBM OV1CDX
3000+	1	DK4AN
3400+	2	DF2JP K5VR
3600+	2	DL7VEA KA2QPG
3900+	1	DK5JPL
4100+	1	GW4OKT
4300+	2	G5VZ AE5Z
4600+	1	IU0HMB
4700+	2	DK9PY VE3NFN
4800+	1	DL5YAD
5500+	2	ON7PQ W5BIB
6500+	1	YO4BEX
8500+	1	DJ6ZM
8700+	1	WR5U

Unique active calls: 73980. 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: 5711927 from 73980 individual calls.

In order to fulfil the rule, 80% of 5711927 hours (= 4569542h) would have to be produced by 20% of 73980 stations (= 14796).

As of today, those 20% generated 1796193 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...)