HB9IOB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Switzerland Most frequent locator attributed to this token: JN36

Receiver-side FT8 activity involving HB9IOB, decoded by SO8OO in southeastern Poland. 632 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 25 UTC dates in the available aggregate history. Observed between 2026-08-01 and 2026-10-16.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 632 FT8 messages attributed to HB9IOB as the transmitting token by decoded message structure across 25 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (32%), followed by 20 m (31%) and 80 m (21%). The busiest six-hour window was 04:00-10:00 UTC, containing 47% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

632

Messages attributed

UTC dates decoded

109

Active 15-min windows

-14 dB

Estimated median S/N

Bands

80m · 131 60m · 107 40m · 200 20m · 194

First attributed message: 2026-08-01
Last attributed message: 2026-10-16 04:38 UTC

Observed FT8 message patterns

Attributed sample: 632 messages
Active dates: 25 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -20 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 241, moderate (-15 to -9 dB) 236, strong (≥ -8 dB) 155.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with HB9IOB in decoded directed-looking exchanges:

RL2F · Kaliningrad ×3 LY1DY · Lithuania ×3 F5HNQ · France ×2 4L7T · Georgia ×2 F1PBZ · France ×2 Z62NS · Republic of Kosovo ×2 F5RRS · France ×2 SP9UPH · Poland ×2 9Y4DG · Trinidad & Tobago CT3MD · Madeira Islands DL7VTE · Fed. Rep. of Germany E74K · Bosnia-Herzegovina

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to HB9IOB

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: JN36 · 418 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,158 km (approx.)
Last such locator decoded: 2026-10-16 04:38 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTC	Band	HB9IOB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-16 04:38	60m	-20 / -	IK3/UY7LA	- / -	2	Partial capture
10-16 04:35	60m	-16 / -	K6VHF/HR9	- / -	4	Partial capture
10-16 04:30	60m	- / -3	EA5D	-8 / -	5	✓ Closing fragment
10-16 04:26	60m	-15 / -	SP9UH	- / +7	3	✓ Closing fragment
10-16 04:22	60m	-20 / -	F5HNQ	-18 / +5	2	Partial capture
10-16 04:22	60m	-20 / -2	OH1LA	-21 / -14	5	✓ Full exchange observed
10-16 04:22	60m	-19 / -10	SP5EXA	+16 / +3	9	✓ Full exchange observed
10-16 04:18	80m	+1 / -	SP5DU/P	- / -	2	Partial capture
10-16 04:16	80m	-3 / -	K0BZ	- / -	3	Partial capture
10-16 04:12	80m	+4 / -	N1EVK	- / -25	4	Partial capture
10-12 04:48	80m	-1 / -9	DL5JAG	+6 / -	2	Partial capture
10-09 05:05	40m	-15 / -	K5PI	- / -	3	Partial capture
10-09 05:02	40m	-13 / -	K8OCN	- / -	2	Partial capture
10-09 04:56	40m	-8 / -	WI9C	- / -	2	Partial capture
10-09 04:55	40m	-7 / -	W5GDC	- / -	3	Partial capture
09-28 05:26	40m	-18 / -	XE1ACA	- / -	2	Partial capture
09-28 05:25	40m	-16 / -	OZ1BSM	- / +2	2	✓ Closing fragment
09-28 05:22	40m	-15 / -	XE2K	- / -	2	Partial capture
09-28 05:19	40m	-16 / -	WD4OBP	- / -13	3	✓ Closing fragment
09-28 05:17	40m	-17 / -	AD9GE	- / -25	3	Partial capture
09-28 05:14	40m	-14 / -5	OH3OJ	0 / +5	4	✓ Full exchange observed
09-28 05:12	40m	-19 / -	KL7J	- / -2	3	✓ Closing fragment
09-28 05:09	40m	-16 / -	N3VA	- / +4	2	Partial capture
09-28 05:03	40m	-14 / -	KL7J	- / -	12	Partial capture
09-28 04:58	40m	-12 / -	OA4ENG	- / -	5	Partial capture
09-28 04:57	60m	- / +1	PA2PF	-14 / -	2	Partial capture
09-28 04:52	60m	-15 / -	WW3K	- / -	5	Partial capture
09-28 04:51	60m	-16 / -9	OZ6ABL	-4 / +10	7	✓ Full exchange observed
09-28 04:50	60m	-16 / -1	EA3AKY	-4 / +10	5	✓ Full exchange observed
09-28 04:47	60m	-12 / +4	G0BLB	+5 / -	5	✓ Full exchange observed
09-28 04:42	80m	-6 / -	N4DWD	- / -	6	Partial capture
09-28 04:39	80m	-4 / -	DO1LR	- / +8	3	✓ Closing fragment
09-28 04:38	80m	-4 / -	F4FPR	- / 0	2	✓ Closing fragment
09-28 04:34	80m	-8 / -	W1KP	- / -8	4	✓ Closing fragment
09-28 04:32	80m	-9 / -	F6FHZ	- / -15	3	✓ Closing fragment
09-28 04:31	80m	-8 / -19	PE1NPS	-6 / -11	6	✓ Full exchange observed
09-28 04:29	80m	- / +8	F5RRS	+9 / -	4	✓ Closing fragment
09-28 04:28	80m	- / +8	LX1TI	+11 / -	2	✓ Closing fragment
09-25 04:59	40m	-14 / -	W4MAA	- / -20	4	✓ Closing fragment
09-25 04:54	40m	-16 / -	WD4OBP	- / -7	2	Partial capture
09-25 04:48	80m	-8 / -	N0BUZ	- / -	4	Partial capture
09-25 04:44	80m	-7 / -	N4DWD	- / -	2	Partial capture
09-21 06:00	40m	-9 / -	N0BUZ	- / -	3	Partial capture
09-21 05:54	40m	-14 / +4	GJ0KYZ	-12 / +5	2	Partial capture
09-21 05:54	40m	- / -	IK4TVP	-5 / -	4	Partial capture
09-21 05:53	40m	-11 / -	N0BUZ	- / -10	4	Partial capture
09-21 05:52	40m	-13 / +6	IW0FGX	-10 / -2	4	✓ Full exchange observed
09-21 05:48	40m	-14 / -	GU4YBW	- / -6	4	✓ Closing fragment
09-21 05:45	40m	-14 / -	EB3JT	- / +7	2	✓ Closing fragment
09-21 05:35	80m	-14 / -	N1IWP	- / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

60m

UTC    dB Audio  Message
042800 -14 1975  SP9UH HB9IOB RR73
042900 -13 1975  KE9ZZ HB9IOB JN36
042930 -11 1975  CQ HB9IOB JN36
043045  -6 1233  HB9IOB EA5D JN00 (x5)
043400 -19 1892  K9CEW HB9IOB JN36
043515 -15 1892  K6VHF/HR9 HB9IOB JN36 (x4)
043815 -19 1786  IK3/UY7LA HB9IOB JN36 (x2)

80m

UTC    dB Audio  Message
044445  -3 1862  N4DWD HB9IOB JN36 (x2)
044830  -1 1703  DL5JAG HB9IOB JN36
045015  +6 1266  HB9IOB DL5JAG -09
045115  +4 1703  OK1HEH HB9IOB JN36
045330  +7 2135  HB9IOB OK1HEH -08
041230  +5 1909  N1EVK HB9IOB JN36 (x4)
041645 -10 1944  K0BZ HB9IOB JN36 (x3)
041815  -2 1944  SP5DU/P HB9IOB JN36 (x2)

40m

UTC    dB Audio  Message
052500 -18 2000  OZ1BSM HB9IOB R+02 (x2)
052630 -16 1946  XE1ACA HB9IOB JN36 (x2)
045515  -9 1837  W5GDC HB9IOB JN36 (x3)
045645  -7 1837  WI9C HB9IOB JN36 (x2)
045745  -3  837  N0BUZ HB9IOB JN36
050215 -12 1836  K8OCN HB9IOB JN36 (x2)
050500 -17 1836  K5PI HB9IOB JN36 (x3)

20m

UTC    dB Audio  Message
142145  +7  925  9V1SH HB9IOB JN36 (x2)
142315  +5 1924  EX7DY HB9IOB JN36 (x3)
101230 -15 1770  Z62NS HB9IOB JN36
101415 -10 1770  HB9IOB RK4FF -15 (x2)
172030 -12 1958  UN3P HB9IOB JN36
203030  +8  393  HB9IOB HS0ZOY -14 (x3)
203230  +3  538  HB9IOB MI7RDK IO74
203230 -18 1866  HB9IOB IU2UBU JN63
203300  +4  538  HB9IOB MI7RDK IO74

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee