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+	69710	-
100+	7696	-
200+	2752	-
300+	1343	-
400+	732	-
500+	452	-
600+	280	-
700+	206	-
800+	115	-
900+	94	-
1000+	59	-
1100+	63	-
1200+	25	DL3AZ K9UIY DL2DX N1MX UY7LA WB0RLJ KC7NBM LZ1FAX UT7LW IT9QAU JA1SJR EA5C LZ1YP JS1DEH ZA1RR NR4A SA6AUT KR2Q JJ1FXF JL1TQV I1OXO AI5IN CT1ZQ OK2BEI DJ2PH
1300+	24	IW9HKM LZ2PP LU4JJ DM2BRF K4IBZ SP3UQW W3RJ KO5Q KC2SIZ DJ3GS JA0IKP JM7OLW OH3GD DH9BAJ SM5COP YT3T F4GOU PY2XL DL5XL F6IVT G0TMX I1GIS JA1IAZ SQ6JAN
1400+	10	IZ5BBS OK1IF LY2PX NE5A NA2DX LZ7DL EI3LG JS2OVO IN3KLQ M0PKD
1500+	13	KI4DEF G4HOM JA5EWQ HA6NL IZ3SOI JF6DMT F4IGG I1YRL K3XR RX6MY W8XW JA8TWF/1 OK1CF G0GKH
1600+	13	K5LY VE3OZO HB9DAX SP1JPM WB6ZFG DF9II IK3/UY7LA PY2AAM W4CI W8FJ LZ3QE W8BJO KI4DEF
1700+	6	SM6OID EA6EJ DK7AK VU2TMP W4MQC SP3CW OE9SBD
1800+	6	NN0D EA4JI CT1BMW YO9KWC UX0DA SM6OID
1900+	4	WB6CXC HA5AEK JJ0TJS IK5VLL
2000+	6	DK1WI OY1CT IU0HMB PY2XW WB5N EE5EE
2100+	3	G3XIZ W1AW UR3QX
2300+	1	EA3CC
2400+	5	K5VR DL3EL OV1CDX OK1LW VU2JCD
2500+	1	K4UX
2600+	2	SM5IMO DM2DZM
2700+	4	F5IN N9QU CT1GFK WA8VTD LZ3AN
2800+	3	DK9PY N8TGQ F5IN
2900+	2	DJ6ZM YB1JCD
3000+	1	EA1EYL
3100+	3	PY2UDB WZ2J DK4AN
3200+	1	WX7V
3300+	3	RU0LL JA1GZV JR3OYH
3400+	2	DK8IT PA5XM
3600+	1	KY4GS
3700+	1	GW4OKT
3800+	1	DL6AAF
3900+	1	IT9JLX
4000+	1	G5VZ
4100+	1	W5BIB
4200+	2	DM5EA WB4AEG
4300+	1	DF6YT
4400+	3	JR6JGB DL5YAD VE3NFN
4500+	1	WR5U
4700+	1	ON7PQ
5200+	1	YO9CMC
5500+	1	DK1VD
5800+	1	DK5JPL
6200+	2	JH6LDY KA2QPG
6600+	1	DF2JP
7200+	1	DL8NBM
8400+	1	YO4GOU
8700+	1	YO4BEX

Unique active calls: 83663. 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: 5983104 from 83663 individual calls.

In order to fulfil the rule, 80% of 5983104 hours (= 4786483h) would have to be produced by 20% of 83663 stations (= 16733).

As of today, those 20% generated 1934469 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...)