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+	75627	-
100+	8365	-
200+	2985	-
300+	1299	-
400+	690	-
500+	436	-
600+	260	-
700+	180	-
800+	117	-
900+	92	-
1000+	46	-
1100+	34	K1PUG AA5KV IS0ESG I1MMR KC8TQP SM6PDS RW7F DL9LM W1AW UR4MKK IK7OFI N4TB LA8IG W6SX W9RAC RM7C DJ1YFK R6NU NV3N UN7LDR JA7BSF G4SMN DF4XX F5PLC AK4JA ZL2AIM 4K6FO VU2GSM K7DCG K4UYQ JH8RJS K8JPM NN0D VA3HP
1200+	33	HK7AAG W8KJP N4QR NM1I K6AAQ K1RAQ EA6NB G4LNA YL2AG UX5UW G0OOQ IZ4GSC RK3ER VE7EDT UR3QX W6JL EU8F DL5YM K2OO HL2BM JH1MDJ U0JFZ N4OW N4PG W9IK LZ1QI SM5IMO NM3B PV8ADI OZ4UN JA9LNZ WA9V JA6HHI Z31JY
1300+	31	OK1IF W7AIT F6IJU HA5AEK W4CI WA9VEE K4IBZ F6HK KB1CL DB25ONN KD8ZM OH6NPV SM3AVQ DL7RKK PA4ARP SM5COP LY2PX N3QE N0NBD S57V LZ7DL DJ6UX CO8LY DK2FE JA6GCE N6IET N4KS DL5ANT DL5FCZ W9ZN HK7AAG
1400+	17	WB7UBC DL2IAD K5LN ZA1EM RX6KR/B OK1HB G0GKH AA3B EA3KU EW1CY US5XD KB4JR G4RMV YL3CW IZ5BBS Z33A SV2BBK
1500+	5	AA4MC G4ZXN UN7NFD A4MC RK4CT DL5UZ 4Z5FW
1600+	12	EI3KM IZ2QXG VE2PID EB4IC YU7QF JH5UVK K7FD M6MPC UR5BIZ W6PU AA4MC G4ZXN
1700+	5	UT5NR NA5G YR100R F5NZY K3WW
1800+	8	W4MQC W5ZO W7D VE3BXG DM2DZM N5PHT TA1PB IU0JFZ
1900+	5	DO1EK K5LY DG4BZ IZ3SOI JF6DMT
2000+	2	KW7D DL3NAA
2100+	4	F4GFT YO4VM G4PVM SP9WZJ
2200+	3	KP4TF F6HKA LA1MFA
2500+	6	ON4ADI DK1WI DK8IT RU3X DK5JPL GW4OKT
2700+	2	DK4AN F5IN
2800+	2	HB9DAX SQ6JAN
3100+	1	VE3NFN
3200+	1	OV1CDX
3300+	1	DL5YAD
3500+	1	OK1LW
4500+	1	OK2RZ
4600+	1	DM0E
4800+	3	DK0MV WR5U DM2A
5300+	1	DL6UKW

Unique active calls: 90276. 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: 5999134 from 90276 individual calls.

In order to fulfil the rule, 80% of 5999134 hours (= 4799307h) would have to be produced by 20% of 90276 stations (= 18055).

As of today, those 20% generated 1978252 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...)