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+	71805	-
100+	7968	-
200+	2835	-
300+	1395	-
400+	788	-
500+	478	-
600+	287	-
700+	217	-
800+	142	-
900+	103	-
1000+	73	-
1100+	43	-
1200+	32	PY2AAM OH6NPV F5JKQ KC2SIZ I1GIS NA2DX N8TGQ VK2GR I1YRL N2JPR KR2Q R4FDH AI5IN DF2IC N4QR WB0B K3MM BH4FCD EA7BEZ UT7LW IZ2FME K0CDJ NI4E F6HKA LU4JJ F4GOU EA4HKF CT1ZQ A6EJ JJ1FXF M5IMO YL3JD
1300+	29	W8XW JL1TQV AI4UH AI0Y N1MX ZA1RR SP3UQW KA1FXK VK5GG SM5COP K9UIY SA6AUT JA1SJR LA1MFA DL2HS JM7OLW F4IGG SQ6JAN NR4A OH3GD KG5SSB HA5AEK DJ3GS PY2XL W4CMG E77EA IK3VUT G0GSY F8DGY
1400+	18	DL2DX LZ3QE WB0RLJ M6MPC SP1JPM JN87FIT EA4JI UA3OT N2OTG VK2ARZ EI3LG G0TMX LZ2PP IN3KLQ UA6WW IT9QAU OK1ABE M0PKD
1500+	15	W7AIT OK1IF OK1CF LZ7DL YT3T KD3KO F5MAI KO5Q RX6MY VU2TMP W8BJO DK7AK DM100FK WS1L JA0IKP
1600+	17	JS1DEH JQ3GIP HA6NL JF6DMT G0GKH W4MQC DF9II OS5Z JA5EWQ IW9HKM VU2SRT K5LY IK6JFF WB6ZFG PY2NEA UN7NFD DJ6AU
1700+	8	JA1IAZ NN0D W4CI G4PVM SP3CW W8FJ UR3QX G4HOM
1800+	9	PY2OA DK1WI JA8TWF/1 CT1GFK EA6EJ VE3OZO OY1CT WA8VTD UX0DA
1900+	4	KI4DEF OE9SBD SM6OID IZ3SOI
2000+	7	IZ5BBS EA3CC LY2PX W1AW JJ0TJS IK5VLL YO9KWC
2100+	1	CT1BMW
2200+	3	LZ3AN WX7V HB9DAX
2300+	2	EE5EE K4UX
2400+	1	OV1CDX
2600+	3	DL3EL VE6SYC N9QU
2700+	3	K5VR OK1LW DM2DZM
2800+	1	DL6AAF
2900+	2	F5IN IU0HMB
3000+	2	PY2UDB EA1EYL
3100+	4	JK1VRF SM5IMO GW4OKT M0LRQ
3200+	5	IT9JLX DK4AN PA5XM DK8IT DK9PY
3300+	2	JA1GZV VU2JCD
3400+	1	KY4GS
3500+	2	DF6YT WB4AEG
3600+	2	DJ6ZM YB1JCD
4100+	1	G5VZ
4300+	3	JR6JGB DM5EA JR3OYH
4400+	1	DL5YAD
4700+	1	VE3NFN
4900+	1	YO9CMC
5000+	1	ON7PQ
5200+	1	WR5U
5700+	1	DK5JPL
5900+	2	KA2QPG DL8NBM
6100+	1	DF2JP
6400+	2	JH6LDY W5BIB
7000+	1	DK1VD
8300+	1	YO4GOU
8700+	1	YO4BEX

Unique active calls: 86325. 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: 6240686 from 86325 individual calls.

In order to fulfil the rule, 80% of 6240686 hours (= 4992549h) would have to be produced by 20% of 86325 stations (= 17265).

As of today, those 20% generated 2000657 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...)