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+	69227	-
100+	7682	-
200+	2741	-
300+	1326	-
400+	729	-
500+	443	-
600+	279	-
700+	206	-
800+	125	-
900+	89	-
1000+	62	-
1100+	50	-
1200+	36	-
1300+	23	HS0ZQE LY2PX JM7OLW DJ3GS M0PKD KC7NBM JA1IAZ DH9BAJ OK2BEI N4TTU UY7LA SP3UQW LU4JJ EI3LG KC2SIZ IU0BNG F6IVT DL3AZ SM5COP IW9HKM I1OXO DL5XL I1GIS
1400+	11	NE5A K3XR K4IBZ DM2BRF IZ5BBS JS2OVO JA8TWF/1 IN3KLQ LZ7DL LZ2PP W3RJ
1500+	16	OH3GD F4IGG JF6DMT HB9DAX W8BJO RX6MY HA6NL KI4DEF G4HOM OE9SBD WB6ZFG OK1CF I1YRL IZ3SOI W8XW G0GKH
1600+	11	SP3CW K5LY PY2AAM SP1JPM W4CI DF9II VE3OZO W8FJ YU0ZVA JA5EWQ LZ3QE
1700+	5	CT1BMW IK3/UY7LA W4MQC EA6EJ VU2TMP
1800+	7	EA4JI HA5AEK JJ0TJS YO9KWC UX0DA SM6OID NN0D
1900+	4	EE5EE WB6CXC DK7AK IK5VLL
2000+	3	G3XIZ OY1CT IU0HMB
2100+	4	WB5N DK1WI W1AW UR3QX
2200+	2	PY2XW VU2JCD
2300+	1	OV1CDX
2400+	1	K5VR
2500+	3	DM2DZM K4UX SM5IMO
2600+	4	WA8VTD DL3EL EA3CC YB1JCD
2700+	3	DJ6ZM DK9PY F5IN
2800+	4	JR3OYH N9QU OK1LW LZ3AN
2900+	1	N8TGQ
3000+	3	CT1GFK DK4AN EA1EYL
3200+	2	PY2UDB WX7V
3300+	2	RU0LL W5BIB
3400+	3	DK8IT PA5XM JA1GZV
3500+	1	WZ2J
3600+	2	WR5U KY4GS
3800+	1	G5VZ
3900+	3	DL6AAF IT9JLX GW4OKT
4100+	2	DM5EA VE3NFN
4300+	1	DF6YT
4500+	1	WB4AEG
4600+	3	DL5YAD JR6JGB ON7PQ
4900+	1	DK1VD
5200+	1	YO9CMC
5700+	1	DK5JPL
6200+	2	KA2QPG JH6LDY
6800+	1	DF2JP
7100+	1	DL8NBM
8500+	1	YO4GOU
8700+	1	YO4BEX

Unique active calls: 83131. 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: 5949491 from 83131 individual calls.

In order to fulfil the rule, 80% of 5949491 hours (= 4759593h) would have to be produced by 20% of 83131 stations (= 16626).

As of today, those 20% generated 1920443 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...)